Sciences and Exploration Directorate

Ralph A Kahn

((AST, CLIMATE & RADIATION STUDIES))

 ralph.a.kahn@nasa.gov

 301.614.6193

Org Code: 613

NASA/GSFC
 Mail Code: 613
 Greenbelt, MD 20771

Employer: NASA

Brief Bio

Dr. Kahn received his PhD in applied physics from Harvard University in 1980. He spent 20 years as a Research Scientist and Senior Research Scientist at the Jet Propulsion Laboratory, where he studied climate change on Earth and Mars, and also led the Earth & Planetary Atmospheres Research Element. Kahn is Aerosol Scientist for the NASA Earth Observing System's Multi-angle Imaging SpectroRadiometer (MISR) instrument. He focuses on using MISR’s unique observations, combined with other data and numerical models, to learn about wildfire smoke, desert dust, volcano and air pollution particles, and to apply the results to regional and global climate-change and air quality questions. Kahn has lectured on Climate Change and atmospheric physics at Caltech UCLA, and many other venues, is Adjunct Professor at the University of Maryland, and is editor and founder of PUMAS, the on-line journal of science and math examples for pre-college education. He has authored over 200 publications in refereed scientific journals and book chapters. Kahn is chair of Commission A of COSPAR (the international Committee on SPAce Research) and co-chair of AeroSat, the international association of the satellite aerosol remote-sensing community. He has received the NASA Exceptional Service Medal, the NASA Outstanding Leadership Medal, the Robert H. Goddard award for Exceptional Achievement in Science, the American Geophysical Union’s Yoram J. Kaufman award, the William Nordberg Memorial Award for Earth Science, and is a Fellow of the American Geophysical Union. 

Web of Science publications and citation metrics can be found here. Download his CV and List of Presentations for more details.

Current Projects

Aerosol Amount and Aerosol Type -- MISR Research Aerosol Retrieval Algorithm Development and MISR Standard Algorithm Validation

Aerosols

The MISR Research Aerosol retrieval algorithm (RA) is used (1) to develop retrieval techniques for application to the MISR Standard Aerosol retrieval algorithm (SA), (2) to help validate results from the SA, and (3) to perfrom a range of detailed studies of wildfire smoke, desert dust, volcanic plumes, and urban and industrial pollution particles. The RA offers higher spatial resolution than the SA ( 1.1 km vs. 4.4 km), better radiometric calibration, better characterization of the ocean and land surface, a broader range of particle optical model options, and a number of more subtle advances. The original development of the RA, and associated validation of the SA, is documented in a series of publications (Kahn et al., 1997; 1998; 2001; 2004; 2005; 2007; 2009; 2010; Kahn & Gaitley, 2015). Recent algorithm advances, by J. Limbacher and R. Kahn, is documented in (Limbacher & Kahn, 2014, 2015, 2017, 2019).

Wildfire Plume-height Climatology and Smoke Particle Evolution

Aerosols

Using the multi-angle stereo imaging capabilities of the MISR instrument, we have analyzed wildfire smoke injection height for many case studies, and all the major wildfire regions of the world.  Continuing work includes detail analysis of regional smoke properties by vegetation type, and an assessment of multiple model paramerizations of smoke-plume injection. Work to date includes analysis of smoke particle evolution using the MISR Research Aerosol Retrieval algoirthm and a synthesis with the plume-height observations, documented in a series of publications (Kahn et al., 2007, 2008; Val Martin et al., 2010; 2012; 2018; Vernon et al., 2018; Zhu et al., 2018; Gonzales-Alonzo et al., 2018; Petrenko et al., 2012; 2017; Solmos et al., 2015; Nelson et al. 2013; Kahn, 2020; Junghenn-Noyes et al., 2020.

Volcanology from Space

Aerosols

Using plume-heights from MISR multi-angle stereo analsys, aerosol type from the MISR Research Aeorosl retrieval algorithm (RA), thermal anomalies and context imagery from MODIS, SO2 mapping from OMI, and vertical aeerosol profiles downwind from CALIPSO, we analyze the evolution of particles within individual eruption plumes and remobilized ash, the variation in plume properties from multiple eruptions of individual volcanoes, and the differences in eruptive plume properties among different volcanoes, globally. Recent work includes a comprehensive assessment of plumes observed by MISR for Kamchatka and Iceland over approximately two decades (2000 - 2019), and is documented in a series of publications (Kahn et al., 2007; Kahn & Limbacher 2012; Scollo et al., 2012; Flower & Kahn, 2017a; 2017b, 2018, 2020a; 2020b).

Air Quality Application of Multi-angle Remote Sensing

Aerosols

MISR multi-angle, multi-spectral imaging provides qualitative constraints on aerosol properties -- particle size, shape, and light-absorption and its spectral dependence, under favorable retrieval conditions. This work relies heavily on the MISR Research Aeorosl retrieval algorithm, both for high-spatial-resolution retrievals, and for detailed particle-type discrimination. We explore both statistical and physical approaches to assessing air quality. The statisitcal approach uses advanced regression analysis, whereas the physical appproach aims at constraining a physically based air quality model with the combination of in situ and satellite remote-sensign data. This work is documented in a series of publications (Liu et al., 2007a; b; c; 2009; Van Donkelaar et al., 2010; 2016; Patadia et al., 2013; Friberg et al., 2017; 2018; deSouza et al. 2020).

Positions/Employment

Senior Research Scientist

NASA Goddard Space Flight Center - Code 613, Greenbelt MD 20771 USA

October 2007 - Present

Kahn is Aerosol Scientist for the NASA Earth Observing System's Multi-angle Imaging SpectroRadiometer (MISR) instrument. He leads the GSFC MISR aerosol research group, and focuses on using MISR’s unique observations, combined with other data and numerical models, to learn about wildfire smoke, desert dust, volcano and air pollution particles, and to apply the results to regional and global climate-change and air quality questions. Kahn is an active member of NASA's Disaster Response working group, is editor and founder of Practical Uses of Math And Science (PUMAS), an on-line, peer-reviewed journal of practical use examples aimed at K-12 teachers (http://pumas.nasa.gov), is Chair of the Committee on Space Research (COSPAR)'s Commission A, and is co-chair of AeroSat, the international study group on satellite aerosol remote sensing.

Teaching Experience

Kahn is Adjunct Professor in the Department of Atmospheric and Oceanic Sciences at the University of Maryland, College Park. He mentors undergraduate and graduate students in a range of atmospheric science research projects. He has lectured extensively on aerosol remote-sensing and climate impacts, and has mentored the research for over a dozen PhD candidates and post-docs.

Education

Ph.D. Applied Physics, Harvard University, 1980.

M.S. Applied Physics, Harvard University, 1975.

B.S. Physics and Geology, University of Rochester, 1973.

Professional Societies

American Geophysical Union

1998 - Present

American Meteorological Society

2012 - Present

American Astronomical Society/Division of Planetary Sciences

1990 - Present

COSPAR (Committee on Space Research)

Chair, Commission A (Earth Science)

2003 - Present

AeroSat (International Association for Satellite Aerosol Remote-Sensing)

Co-chair, co-founder

2013 - Present

Awards

• American Meteorological Society Robert H. & Joanne Simpson Mentorship Award, “For an exceptional career filled with dedication to mentoring with compassion, generosity, encouragement and scientific integrity," 2023

• Certificate in Public Leadership, The Brookings Institution, Washington DC, 2023

• Fellow of the American Geophysical Union, 2020

• 2019 William Nordberg Memorial Award for Earth Science – NASA Goddard Space Flight Center

• NASA Robert H. Goddard Award: Exceptional Achievement for Science, 2016, “For unveiling the mysteries of aerosols in innovative research efforts that made us understand better their importance in climate and everyday life”

• NASA Outstanding Leadership Medal, 2013

• Editor’s Citation for Excellence in Refereeing, Journal of Geophysical Research, 2013

• NASA Distinguished Performance Awards: 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022

• Yoram J. Kaufman Award, American Geophysical Union, 2009. “For broad influence in atmospheric science through exceptional creativity, inspiration of younger scientists, mentoring, international collaboration, and unselfish cooperation in research,”

• NASA Exceptional Service Medal, 2003

• NASA Goddard Achievement Award for contributions to the EOS Terra Mission, 2000

• NASA Group Achievement Award for contributions to the SEAC4RS Field Campaign, 2014

• NASA Group Achievement Award for the PODEX / AirMSPI Field Campaign, 2014

• NASA Group Achievement Award for contributions to the ARCTAS Field Campaign, 2009

• NASA Group Achievement Award for contributions to the INTEX-A Field Campaign, 2005

• NASA Group Achievement Award, contributions to CRYSTAL-FACE Field Campaign, 2003

• NASA Group Achievement Award for contributions to the MISR project, 2001

 


 

Publications

Refereed

Nelson, R. R., M. L. Witek, M. J. Garay, et al. M. A. Bull, J. A. Limbacher, R. A. Kahn, and D. J. Diner. 2023. Expanding the coverage of Multi-angle Imaging SpectroRadiometer (MISR) aerosol retrievals over shallow, turbid, and eutrophic waters Atmospheric Measurement Techniques 16 (20): 4947-4960 [10.5194/amt-16-4947-2023]

deSouza, P., A. Wang, Y. Machida, et al. T. Duhl, S. Mora, P. Kumar, R. Kahn, C. Ratti, J. L. Durant, and N. Hudda. 2023. Evaluating the Performance of Low-Cost PM<sub>2.5</sub> Sensors in Mobile Settings Environmental Science &amp; Technology 57 (41): 15401-15411 [10.1021/acs.est.3c04843]

Hammer, M. S., A. van Donkelaar, L. Bindle, et al. A. M. Sayer, J. Lee, N. C. Hsu, R. C. Levy, V. Sawyer, M. J. Garay, O. V. Kalashnikova, R. A. Kahn, A. Lyapustin, and R. V. Martin. 2023. Assessment of the impact of discontinuity in satellite instruments and retrievals on global PM2.5 estimates Remote Sensing of Environment 294 113624 [10.1016/j.rse.2023.113624]

Kahn, R. 2023. Reducing Aerosol Climate-Forcing Uncertainty: A Three-Way Street Eos 104 [10.1029/2023eo235016]

Kahn, R. A. 2023. Editorial: Advanced technologies in remote sensing of aerosols and trace gases Frontiers in Earth Science 11 [10.3389/feart.2023.1212045]

Mytilinaios, M., S. Basart, S. Ciamprone, et al. J. Cuesta, C. Dema, E. Di Tomaso, P. Formenti, A. Gkikas, O. Jorba, R. Kahn, C. Pérez García-Pando, S. Trippetta, and L. Mona. 2023. Comparison of dust optical depth from multi-sensor products and MONARCH (Multiscale Online Non-hydrostatic AtmospheRe CHemistry) dust reanalysis over North Africa, the Middle East, and Europe Atmospheric Chemistry and Physics 23 (9): 5487-5516 [10.5194/acp-23-5487-2023]

Kahn, R. A., E. Andrews, C. A. Brock, et al. M. Chin, G. Feingold, A. Gettelman, R. C. Levy, D. M. Murphy, A. Nenes, J. R. Pierce, T. Popp, J. Redemann, A. M. Sayer, A. da Silva, L. Sogacheva, and P. Stier. 2023. Reducing Aerosol Forcing Uncertainty By Combining Models with Satellite and Within‐the‐Atmosphere Observations: A Three‐Way Street Reviews of Geophysics [10.1029/2022rg000796]

Bruckert, J., L. Hirsch, Á. Horváth, et al. R. A. Kahn, T. Kölling, L. O. Muser, C. Timmreck, H. Vogel, S. Wallis, and G. A. Hoshyaripour. 2023. Dispersion and Aging of Volcanic Aerosols after the La Soufrière Eruption in April 2021 Journal of Geophysical Research: Atmospheres 128 (e2022JD037694): [10.1029/2022jd037694]

Tong, D. Q., T. E. Gill, W. A. Sprigg, et al. R. S. Van Pelt, A. A. Baklanov, B. M. Barker, J. E. Bell, J. Castillo, S. Gassó, C. J. Gaston, D. W. Griffin, N. Huneeus, R. A. Kahn, A. P. Kuciauskas, L. A. Ladino, J. Li, O. L. Mayol‐Bracero, O. Z. McCotter, P. A. Méndez‐Lázaro, P. Mudu, S. Nickovic, D. Oyarzun, J. Prospero, G. B. Raga, A. U. Raysoni, L. Ren, N. Sarafoglou, A. Sealy, Z. Sun, and A. V. Vimic. 2023. Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond Reviews of Geophysics [10.1029/2021rg000763]

Li, Y., D. Tong, S. Ma, et al. S. R. Freitas, R. Ahmadov, M. Sofiev, X. Zhang, S. Kondragunta, R. Kahn, Y. Tang, B. Baker, P. Campbell, R. Saylor, G. Grell, and F. Li. 2023. Impacts of estimated plume rise on PM2.5 exceedance prediction during extreme wildfire events: a comparison of three schemes (Briggs, Freitas, and Sofiev) Atmospheric Chemistry and Physics 23 (5): 3083-3101 [10.5194/acp-23-3083-2023]

deSouza, P., K. Barkjohn, A. Clements, et al. J. Lee, R. Kahn, B. Crawford, and P. Kinney. 2023. An analysis of degradation in low-cost particulate matter sensors Environmental Science: Atmospheres 3 (3): 521-536 [10.1039/d2ea00142j]

Adebiyi, A., J. F. Kok, B. J. Murray, et al. C. L. Ryder, J.-B. W. Stuut, R. A. Kahn, P. Knippertz, P. Formenti, N. M. Mahowald, C. Pérez García-Pando, M. Klose, A. Ansmann, B. H. Samset, A. Ito, Y. Balkanski, C. Di Biagio, M. N. Romanias, Y. Huang, and J. Meng. 2023. A review of coarse mineral dust in the Earth system Aeolian Research 60 100849 [10.1016/j.aeolia.2022.100849]

Limbacher, J. A., R. A. Kahn, and J. Lee. 2022. The new MISR research aerosol retrieval algorithm: a multi-angle, multi-spectral, bounded-variable least squares retrieval of aerosol particle properties over both land and water Atmospheric Measurement Techniques 15 (22): 6865-6887 [10.5194/amt-15-6865-2022]

deSouza, P., R. Kahn, T. Stockman, et al. W. Obermann, B. Crawford, A. Wang, J. Crooks, J. Li, and P. Kinney. 2022. Calibrating networks of low-cost air quality sensors Atmospheric Measurement Techniques 15 (21): 6309-6328 [10.5194/amt-15-6309-2022]

Junghenn Noyes, K. T., R. A. Kahn, J. A. Limbacher, and Z. Li. 2022. Canadian and Alaskan wildfire smoke particle properties, their evolution, and controlling factors, from satellite observations Atmospheric Chemistry and Physics 22 (15): 10267-10290 [10.5194/acp-22-10267-2022]

Li, J., B. E. Carlson, Y. L. Yung, et al. D. Lv, J. Hansen, J. E. Penner, H. Liao, V. Ramaswamy, R. A. Kahn, P. Zhang, O. Dubovik, A. Ding, A. A. Lacis, L. Zhang, and Y. Dong. 2022. Scattering and absorbing aerosols in the climate system Nature Reviews Earth &amp; Environment [10.1038/s43017-022-00296-7]

Yue, J., S. D. Miller, W. Straka, et al. Y. Noh, M. Chou, R. Kahn, and V. Flower. 2022. La Soufriere volcanic eruptions launched gravity waves into Space Geophysical Research Letters [10.1029/2022gl097952]

Christensen, M. W., A. Gettelman, J. Cermak, et al. G. Dagan, M. Diamond, A. Douglas, G. Feingold, F. Glassmeier, T. Goren, D. P. Grosvenor, E. Gryspeerdt, R. Kahn, Z. Li, P.-L. Ma, F. Malavelle, I. L. McCoy, D. T. McCoy, G. McFarquhar, J. Mülmenstädt, S. Pal, A. Possner, A. Povey, J. Quaas, D. Rosenfeld, A. Schmidt, R. Schrödner, A. Sorooshian, P. Stier, V. Toll, D. Watson-Parris, R. Wood, M. Yang, and T. Yuan. 2022. Opportunistic experiments to constrain aerosol effective radiative forcing Atmospheric Chemistry and Physics 22 (1): 641-674 [10.5194/acp-22-641-2022]

Zamora, L. M., R. A. Kahn, N. Evangeliou, C. D. Groot Zwaaftink, and K. B. Huebert. 2022. Comparisons between the distributions of dust and combustion aerosols in MERRA-2, FLEXPART, and CALIPSO and implications for deposition freezing over wintertime Siberia Atmospheric Chemistry and Physics 22 (18): 12269--12285 [10.5194/acp-22-12269-2022]

Kahn, R. A., Y. Liu, and D. J. Diner. 2022. Space-Based Passive Aerosol Remote Sensing from the Multi-angle Imaging SpectroRadiometer (MISR) aboard NASA’s Terra Satellite Handbook of Air Quality and Climate Change 1-14 [10.1007/978-981-15-2527-8_62-1]

van Donkelaar, A., M. S. Hammer, L. Bindle, et al. M. Brauer, J. R. Brook, M. J. Garay, N. C. Hsu, O. V. Kalashnikova, R. A. Kahn, C. Lee, R. C. Levy, A. Lyapustin, A. M. Sayer, and R. V. Martin. 2021. Monthly Global Estimates of Fine Particulate Matter and Their Uncertainty Environmental Science & Technology [10.1021/acs.est.1c05309]

Bian, Q., S. Kreidenweis, J. C. Chiu, et al. S. D. Miller, X. Xu, J. Wang, R. Kahn, J. A. Limbacher, L. A. Remer, and R. C. Levy. 2021. Constraining aerosol phase function using dual‐view geostationary satellites Journal of Geophysical Research: Atmospheres 126 [10.1029/2021jd035209]

deSouza, P. N., P. A. Oriama, P. P. Pedersen, et al. S. Horstmann, L. Gordillo-Dagallier, C. Christensen, C. O. Franck, R. Ayah, R. Kahn, J. Klopp, K. Messier, and P. L. Kinney. 2021. Spatial variation of fine particulate matter levels in Nairobi before and during the COVID-19 curfew: Implications for environmental justice Environmental Research Communications [10.1088/2515-7620/ac1214]

Marshak, A., A. Ackerman, A. Da Silva, et al. T. Eck, B. Holben, R. Kahn, R. Kleidman, K. Knobelspiesse, R. C. Levy, A. Lyapustin, L. Oreopoulos, L. Remer, O. Torres, T. Varnai, G. Wen, and J. Yorks. 2021. Aerosol properties in cloudy environments from remote sensing observations: a review of the current state of knowledge Bulletin of the American Meteorological Society 1-57 [10.1175/bams-d-20-0225.1]

Flower, V. J., and R. A. Kahn. 2021. Twenty years of NASA-EOS multi-sensor satellite observations at Kīlauea volcano (2000–2019) Journal of Volcanology and Geothermal Research 415 107247 [10.1016/j.jvolgeores.2021.107247]

Hammer, M. S., A. van Donkelaar, R. V. Martin, et al. E. E. McDuffie, A. Lyapustin, A. M. Sayer, N. C. Hsu, R. C. Levy, M. J. Garay, O. V. Kalashnikova, and R. A. Kahn. 2021. Effects of COVID-19 lockdowns on fine particulate matter concentrations Science Advances 7 (26): eabg7670 [10.1126/sciadv.abg7670]

Fromm, M. D., G. P. Kablick, D. A. Peterson, et al. R. A. Kahn, V. J. Flower, and C. J. Seftor. 2021. Quantifying the source term and uniqueness of the 12 August 2017 Pacific Northwest pyroCb event Journal of Geophysical Research: Atmospheres 126 (e2021JD034928): [10.1029/2021jd034928]

Chen, T., Z. Li, R. A. Kahn, et al. C. Zhao, D. Rosenfeld, J. Guo, W. Han, and D. Chen. 2021. Potential impact of aerosols on convective clouds revealed by Himawari-8 observations over different terrain types in eastern China Atmospheric Chemistry and Physics 21 (8): 6199-6220 [10.5194/acp-21-6199-2021]

McNeill, J., G. Snider, C. L. Weagle, et al. B. Walsh, P. Bissonnette, E. Stone, I. Abboud, C. Akoshile, N. X. Anh, R. Balasubramanian, J. R. Brook, C. Coburn, A. Cohen, J. Dong, G. Gagnon, R. M. Garland, K. He, B. N. Holben, R. Kahn, J. S. Kim, N. Lagrosas, P. Lestari, Y. Liu, F. Jeba, K. S. Joy, J. V. Martins, A. Misra, L. K. Norford, E. J. Quel, A. Salam, B. Schichtel, S. N. Tripathi, C. Wang, Q. Zhang, M. Brauer, M. D. Gibson, Y. Rudich, and R. V. Martin. 2020. Large global variations in measured airborne metal concentrations driven by anthropogenic sources Scientific Reports 10 (1): 21817 [10.1038/s41598-020-78789-y]

Junghenn Noyes, K. T., R. A. Kahn, J. A. Limbacher, et al. Z. Li, M. A. Fenn, D. M. Giles, J. W. Hair, J. M. Katich, R. H. Moore, C. E. Robinson, K. J. Sanchez, T. J. Shingler, K. L. Thornhill, E. B. Wiggins, and E. L. Winstead. 2020. Wildfire Smoke Particle Properties and Evolution, From Space-Based Multi-Angle Imaging II: The Williams Flats Fire during the FIREX-AQ Campaign Remote Sensing 12 (22): 3823 [10.3390/rs12223823]

deSouza, P., R. A. Kahn, J. A. Limbacher, et al. E. A. Marais, F. Duarte, and C. Ratti. 2020. Combining low-cost, surface-based aerosol monitors with size-resolved satellite data for air quality applications Atmospheric Measurement Techniques 13 (10): 5319-5334 [10.5194/amt-13-5319-2020]

Zamora, L. M., and R. A. Kahn. 2020. Saharan dust aerosols change deep convective cloud prevalence, possibly by inhibiting marine new particle formation Journal of Climate 33 (21): 9467-9480 [10.1175/jcli-d-20-0083.1]

Flower, V. J., and R. A. Kahn. 2020. The Evolution of Icelandic Volcano Emissions, as Observed From Space in the Era of NASA's Earth Observing System (EOS) Journal of Geophysical Research: Atmospheres 125 (19): [10.1029/2019jd031625]

deSouza, P., A. Anjomshoaa, F. Duarte, et al. R. Kahn, P. Kumar, and C. Ratti. 2020. Air quality monitoring using mobile low-cost sensors mounted on trash-trucks: Methods development and lessons learned Sustainable Cities and Society 60 102239 [10.1016/j.scs.2020.102239]

Li, Y., D. Q. Tong, F. Ngan, et al. M. D. Cohen, A. F. Stein, S. Kondragunta, X. Zhang, C. Ichoku, E. J. Hyer, and R. A. Kahn. 2020. Ensemble PM 2.5 Forecasting During the 2018 Camp Fire Event Using the HYSPLIT Transport and Dispersion Model Journal of Geophysical Research: Atmospheres 125 (15): [10.1029/2020jd032768]

Hammer, M. S., A. van Donkelaar, C. Li, et al. A. Lyapustin, A. M. Sayer, N. C. Hsu, R. C. Levy, M. J. Garay, O. V. Kalashnikova, R. A. Kahn, M. Brauer, J. S. Apte, D. K. Henze, L. Zhang, Q. Zhang, B. Ford, J. R. Pierce, and R. V. Martin. 2020. Global Estimates and Long-Term Trends of Fine Particulate Matter Concentrations (1998–2018) Environmental Science & Technology 54 (13): 7879-7890 [10.1021/acs.est.0c01764]

Li, J., R. A. Kahn, J. Wei, et al. B. E. Carlson, A. A. Lacis, Z. Li, X. Li, O. Dubovik, and T. Nakajima. 2020. Synergy of Satellite‐ and Ground‐Based Aerosol Optical Depth Measurements Using an Ensemble Kalman Filter Approach Journal of Geophysical Research: Atmospheres 125 (5): [10.1029/2019jd031884]

Duncan, B. N., L. E. Ott, J. B. Abshire, et al. L. Brucker, M. L. Carroll, J. Carton, J. C. Comiso, E. P. Dinnat, B. C. Forbes, A. Gonsamo, W. W. Gregg, D. K. Hall, I. Ialongo, R. Jandt, R. A. Kahn, A. Karpechko, S. R. Kawa, S. Kato, T. Kumpula, E. Kyrölä, T. V. Loboda, K. C. McDonald, P. M. Montesano, R. Nassar, C. S. Neigh, C. L. Parkinson, B. Poulter, J. Pulliainen, K. Rautiainen, B. M. Rogers, C. S. Rousseaux, A. J. Soja, N. Steiner, J. Tamminen, P. C. Taylor, M. A. Tzortziou, H. Virta, J. S. Wang, J. D. Watts, D. M. Winker, and D. L. Wu. 2020. Space‐Based Observations for Understanding Changes in the Arctic‐Boreal Zone Reviews of Geophysics 58 (1): 2019RG000652 [10.1029/2019rg000652]

Junghenn Noyes, K., R. Kahn, A. Sedlacek, et al. L. Kleinman, J. Limbacher, and Z. Li. 2020. Wildfire Smoke Particle Properties and Evolution, from Space-Based Multi-Angle Imaging Remote Sensing 12 (5): 769 [10.3390/rs12050769]

Sogacheva, L., T. Popp, A. M. Sayer, et al. O. Dubovik, M. J. Garay, A. Heckel, N. C. Hsu, H. Jethva, R. A. Kahn, P. Kolmonen, M. Kosmale, G. de Leeuw, R. C. Levy, P. Litvinov, A. Lyapustin, P. North, O. Torres, and A. Arola. 2020. Merging regional and global aerosol optical depth records from major available satellite products Atmospheric Chemistry and Physics 20 (4): 2031-2056 [10.5194/acp-20-2031-2020]

Garay, M. J., M. L. Witek, R. A. Kahn, et al. F. C. Seidel, J. A. Limbacher, M. A. Bull, D. J. Diner, E. G. Hansen, O. V. Kalashnikova, H. Lee, A. M. Nastan, and Y. Yu. 2020. Introducing the 4.4&amp;#8201;km spatial resolution Multi-Angle Imaging SpectroRadiometer (MISR) aerosol product Atmospheric Measurement Techniques 13 (2): 593-628 [10.5194/amt-13-593-2020]

Su, T., Z. Li, and R. Kahn. 2020. A new method to retrieve the diurnal variability of planetary boundary layer height from lidar under different thermodynamic stability conditions Remote Sensing of Environment 237 111519 [10.1016/j.rse.2019.111519]

Flower, V. J., and R. A. Kahn. 2020. Interpreting the volcanological processes of Kamchatka, based on multi-sensor satellite observations Remote Sensing of Environment 237 111585 [10.1016/j.rse.2019.111585]

Kahn, R. A. 2020. A Global Perspective on Wildfires Eos EARTH & SPACE SCIENCE NEWS 101 (2): 18 [10.1029/2020E0138260]

Kim, D., M. Chin, H. Yu, et al. X. Pan, H. Bian, Q. Tan, R. A. Kahn, K. Tsigaridis, S. E. Bauer, T. Takemura, L. Pozzoli, N. Bellouin, and M. Schulz. 2019. Asian and Trans‐Pacific Dust: A Multimodel and Multiremote Sensing Observation Analysis Journal of Geophysical Research: Atmospheres 2019JD030822 [10.1029/2019jd030822]

Lyapustin, A., Y. Wang, S. Korkin, R. Kahn, and D. Winker. 2019. MAIAC Thermal Technique for Smoke Injection Height From MODIS IEEE Geoscience and Remote Sensing Letters 1-5; [10.1109/lgrs.2019.2936332]

Yu, H., Q. Tan, M. Chin, et al. L. A. Remer, R. A. Kahn, H. Bian, D. Kim, Z. Zhang, T. L. Yuan, A. H. Omar, D. M. Winker, R. C. Levy, O. Kalashnikova, L. Crepeau, V. Capelle, and A. Chédin. 2019. Estimates of African Dust Deposition Along the Trans‐Atlantic Transit Using the Decadelong Record of Aerosol Measurements from CALIOP, MODIS, MISR, and IASI Journal of Geophysical Research: Atmospheres 124 (14): 7975-7996 [10.1029/2019jd030574]

Gonzalez-Alonso, L., M. Val Martin, and R. A. Kahn. 2019. Biomass-burning smoke heights over the Amazon observed from space Atmospheric Chemistry and Physics 19 (3): 1685-1702 [10.5194/acp-19-1685-2019]

Limbacher, J. A., and R. A. Kahn. 2019. Updated MISR over-water research aerosol retrieval algorithm – Part 2: A multi-angle aerosol retrieval algorithm for shallow, turbid, oligotrophic, and eutrophic waters Atmospheric Measurement Techniques 12 (1): 675-689 [10.5194/amt-12-675-2019]

Wu, D., T. Wang, T. Várnai, et al. J. Limbacher, R. Kahn, G. Taha, J. Lee, J. Gong, and T. Yuan. 2018. MISR Radiance Anomalies Induced by Stratospheric Volcanic Aerosols Remote Sensing 10 (12): 1875 [10.3390/rs10121875]

Vernon, C. J., R. Bolt, T. Canty, and R. A. Kahn. 2018. The impact of MISR-derived injection height initialization on wildfire and volcanic plume dispersion in the HYSPLIT model Atmospheric Measurement Techniques 11 (11): 6289-6307 [10.5194/amt-11-6289-2018]

Su, T., Z. Li, and R. Kahn. 2018. Relationships between the planetary boundary layer height and surface pollutants derived from lidar observations over China: regional pattern and influencing factors Atmospheric Chemistry and Physics 18 (21): 15921-15935 [10.5194/acp-18-15921-2018]

Zamora, L. M., R. A. Kahn, K. B. Huebert, A. Stohl, and S. Eckhardt. 2018. A satellite-based estimate of combustion aerosol cloud microphysical effects over the Arctic Ocean Atmospheric Chemistry and Physics 18 (20): 14949-14964 [10.5194/acp-18-14949-2018]

Zhu, L., M. Val Martin, L. V. Gatti, et al. R. Kahn, A. Hecobian, and E. V. Fischer. 2018. Development and implementation of a new biomass burning emissions injection height scheme (BBEIH v1.0) for the GEOS-Chem model (v9-01-01) Geoscientific Model Development 11 (10): 4103-4116 [10.5194/gmd-11-4103-2018]

Val Martin, M., R. Kahn, and M. Tosca. 2018. A Global Analysis of Wildfire Smoke Injection Heights Derived from Space-Based Multi-Angle Imaging Remote Sensing 10 (10): 1609 [10.3390/rs10101609]

Weagle, C. L., G. Snider, C. Li, et al. A. van Donkelaar, S. Philip, P. Bissonnette, J. Burke, J. Jackson, R. Latimer, E. Stone, I. Abboud, C. Akoshile, N. X. Anh, J. R. Brook, A. Cohen, J. Dong, M. D. Gibson, D. Griffith, K. B. He, B. N. Holben, R. Kahn, C. A. Keller, J. S. Kim, N. Lagrosas, P. Lestari, Y. L. Khian, Y. Liu, E. A. Marais, J. V. Martins, A. Misra, U. Muliane, R. Pratiwi, E. J. Quel, A. Salam, L. Segev, S. N. Tripathi, C. Wang, Q. Zhang, M. Brauer, Y. Rudich, and R. V. Martin. 2018. Global Sources of Fine Particulate Matter: Interpretation of PM2.5 Chemical Composition Observed by SPARTAN using a Global Chemical Transport Model Environmental Science & Technology 52 (20): acs.est.8b01658 [10.1021/acs.est.8b01658]

Friberg, M. D., R. A. Kahn, J. A. Limbacher, K. W. Appel, and J. A. Mulholland. 2018. Constraining chemical transport PM2.5 modeling outputs using surface monitor measurements and satellite retrievals: application over the San Joaquin Valley Atmospheric Chemistry and Physics 18 (17): 12891-12913 [10.5194/acp-18-12891-2018]

Samset, B. H., C. W. Stjern, E. Andrews, et al. R. A. Kahn, G. Myhre, M. Schulz, and G. L. Schuster. 2018. Aerosol Absorption: Progress Towards Global and Regional Constraints Current Climate Change Reports 4 (2): 65-83 [10.1007/s40641-018-0091-4]

Flower, V. J., and R. A. Kahn. 2018. Karymsky volcano eruptive plume properties based on MISR multi-angle imagery and the volcanological implications Atmospheric Chemistry and Physics 18 (6): 3903-3918 [10.5194/acp-18-3903-2018]

Kahn, R. A., T. A. Berkoff, C. Brock, et al. G. Chen, R. A. Ferrare, S. Ghan, T. F. Hansico, D. A. Hegg, J. V. Martins, C. S. McNaughton, D. M. Murphy, J. A. Ogren, J. E. Penner, P. Pilewskie, J. H. Seinfeld, and D. R. Worsnop. 2017. SAM-CAAM: A Concept for Acquiring Systematic Aircraft Measurements to Characterize Aerosol Air Masses Bulletin of the American Meteorological Society 98 (10): 2215-2228 [10.1175/bams-d-16-0003.1]

Flower, V. J., and R. A. Kahn. 2017. Distinguishing Remobilized Ash From Erupted Volcanic Plumes Using Space-Borne Multiangle Imaging Geophysical Research Letters Onliine [10.1002/2017gl074740]

Flower, V. J., and R. A. Kahn. 2017. Tracking microphysical variations in emissions from Karymsky volcano using MISR multi-angle imagery, and implications for volcano geologic interpretation Atmospheric Chemistry and Physics Discussions 1-25 [10.5194/acp-2017-868]

Petrenko, M., R. Kahn, M. Chin, and J. Limbacher. 2017. Refined Use of Satellite Aerosol Optical Depth Snapshots to Constrain Biomass Burning Emissions in the GOCART Model Journal of Geophysical Research: Atmospheres Online [10.1002/2017jd026693]

Zamora, L. M., R. A. Kahn, S. Eckhardt, et al. A. McComiskey, P. Sawamura, R. Moore, and A. Stohl. 2017. Aerosol indirect effects on the nighttime Arctic Ocean surface from thin, predominantly liquid clouds Atmospheric Chemistry and Physics 17 (12): 7311-7332 [10.5194/acp-17-7311-2017]

Flower, V. J., and R. A. Kahn. 2017. Assessing the altitude and dispersion of volcanic plumes using MISR multi-angle imaging from space: Sixteen years of volcanic activity in the Kamchatka Peninsula, Russia Journal of Volcanology and Geothermal Research 337 1-15 [10.1016/j.jvolgeores.2017.03.010]

Limbacher, J. A., and R. A. Kahn. 2017. Updated MISR dark water research aerosol retrieval algorithm – Part 1: Coupled 1.1 km ocean surface chlorophyll &lt;i&gt;a&lt;/i&gt; retrievals with empirical calibration corrections Atmospheric Measurement Techniques 10 (4): 1539-1555 [10.5194/amt-10-1539-2017]

Li, J., X. Li, B. E. Carlson, et al. R. A. Kahn, A. A. Lacis, O. Dubovik, and T. Nakajima. 2017. Reducing multisensor monthly mean aerosol optical depth uncertainty: 2. Optimal locations for potential ground observation deployments Journal of Geophysical Research: Atmospheres 122 [10.1002/2016jd026308]

Friberg, M. D., R. A. Kahn, H. A. Holmes, et al. H. H. Chang, S. E. Sarnat, P. E. Tolbert, A. G. Russell, and J. A. Mulholland. 2017. Daily ambient air pollution metrics for five cities: Evaluation of data-fusion-based estimates and uncertainties Atmospheric Environment 158 36-50 [10.1016/j.atmosenv.2017.03.022]

Li, J., X. Li, B. E. Carlson, et al. R. A. Kahn, A. A. Lacis, O. Dubovik, and T. Nakajima. 2016. Reducing multisensor satellite monthly mean aerosol optical depth uncertainty: 1. Objective assessment of current AERONET locations Journal of Geophysical Research: Atmospheres [10.1002/2016jd025469]

Kahn, R. A., A. M. Sayer, Z. Ahmad, and B. A. Franz. 2016. The Sensitivity of SeaWiFS Ocean Color Retrievals to Aerosol Amount and Type J. Atmos. and Oceanic Tech 33 (6): 1185–1209 [10.1175/JTECH-D-15.0121.1]

Lee, H., O. V. Kalashnikova, K. Suzuki, et al. A. Braverman, M. J. Garay, and R. A. Kahn. 2016. Climatology of the aerosol optical depth by components from the Multi-angle Imaging SpectroRadiometer (MISR) and chemistry transport models Atmos. Chem. Phys. 16 (10): 6627-6640 [10.5194/acp-16-6627-2016]

Seinfeld, J. H., C. Bretherton, K. S. Carslaw, et al. H. Coe, P. J. DeMott, E. J. Dunlea, G. Feingold, S. Ghan, A. B. Guenther, R. Kahn, I. Kraucunas, S. M. Kreidenweis, M. J. Molina, A. Nenes, J. E. Penner, K. A. Prather, V. Ramanathan, V. Ramaswamy, P. J. Rasch, A. R. Ravishankara, D. Rosenfeld, G. Stephens, and R. Wood. 2016. Improving our fundamental understanding of the role of aerosol−cloud interactions in the climate system Proc Natl Acad Sci USA 113 (21): 5781-5790 [10.1073/pnas.1514043113]

van Donkelaar, A., R. V. Martin, M. Brauer, et al. N. C. Hsu, R. A. Kahn, R. C. Levy, A. Lyapustin, A. M. Sayer, and D. M. Winker. 2016. Global Estimates of Fine Particulate Matter using a Combined Geophysical-Statistical Method with Information from Satellites, Models, and Monitors Environ. Sci. Technol. 50 (7): 3762-3772 [10.1021/acs.est.5b05833]

Zamora, L. M., R. A. Kahn, M. J. Cubison, et al. G. S. Diskin, J. L. Jimenez, Y. Kondo, G. M. McFarquhar, A. Nenes, K. L. Thornhill, A. Wisthaler, A. Zelenyuk, and L. D. Ziemba. 2016. Aircraft-measured indirect cloud effects from biomass burning smoke in the Arctic and subarctic Atmospheric Chemistry and Physics 16 (2): 715-738 [10.5194/acp-16-715-2016]

Taylor, M., S. Kazadzis, V. Amiridis, and R. A. Kahn. 2015. Global aerosol mixtures and their multiyear and seasonal characteristics Atmospheric Environment 116 112--129 [10.1016/j.atmosenv.2015.06.029]

Solomos, S., V. Amiridis, P. Zanis, et al. E. Gerasopoulos, F. I. Sofiou, T. Herekakis, J. Brioude, A. Stohl, R. A. Kahn, and C. Kontoes. 2015. Smoke dispersion modeling over complex terrain using high resolution meteorological data and satellite observations - the FireHub platform Atmospheric Environment 119 348-361 [10.1016/j.atmosenv.2015.08.066]

Limbacher, J. A., and R. A. Kahn. 2015. MISR empirical stray light corrections in high-contrast scenes Atmos. Meas. Tech 8 2927-2943 [10.5194/amt-8-2927-2015]

Kahn, R. A., and B. Gaitley. 2015. An analysis of global aerosol type as retrieved by MISR J. Geophys. Res.-Atmos 120 (9): 4248-4281 [10.1002/2015JD023322]

Li, S., R. A. Kahn, M. Chin, M. J. Garay, and Y. Liu. 2015. Improving satellite-retrieved aerosol microphysical properties using GOCART data Atmos. Meas. Tech 8 1157-1171 [10.5194/amt-8-1157-2015]

Snider, G., C. L. Weagle, R. V. Martins, et al. A. van Donkelaar, K. Conrad, D. Cunningham, C. Gordon, M. Zwicker, C. Akoshile, P. Artaxo, N. X. Anh, J. Brooks, J. Dong, R. M. Garland, R. Greenwald, D. Griffith, K. He, B. N. Holben, R. A. Kahn, I. Koren, N. Lagrosas, P. Lestari, Z. Ma, J. V. Martins, E. J. Quel, Y. Rudich, A. Salam, S. N. Tripathi, C. Yu, Q. Zhang, Y. Zhang, M. Brauer, A. Cohen, M. D. Gibson, and Y. Liu. 2015. SPARTAN: a global network to evaluate and enhance satellite-based estimates of ground-level particulate matter for global health applications Atmos. Meas. Tech. 8 505-521 [10.5194/amt-8-505-2015]

Kahn, R. A. 2015. Satellites and Satellite Remote Sensing: Aerosol Measurements Encyclopedia of Atmospheric Sciences 5 (2nd Edition): 51-66 [10.1016/B978-0-12-382225-3.00347]

Schwartz, S. E., R. J. Charlson, R. A. Kahn, and H. Rodhe. 2014. Earth's Climate Sensitivity: Apparent Inconsistencies in Recent Assessments Earth's Future 2 (12): 601-605 [10.1002/2014EF000273]

Rosenfeld, D., M. O. Andreae, A. Asmi, et al. M. Chin, G. de Leeuw, D. P. Donovan, R. A. Kahn, S. Kinne, N. Kivekas, M. Kulmala, W. K. Lau, K. Schmidt, T. Suni, T. Wagner, M. Wild, and J. Quaas. 2014. Global observations of aerosol-cloud-precipitation-climate interactions Rev. Geophys. 52 (4): 750-808 [10.1002.2013RG000441]

Limbacher, J. A., and R. A. Kahn. 2014. MISR research-aerosol-algorithm refinements for dark water retrievals Atmos. Meas. Tech. 7 1-19 [10.5194/amt-7-1-2014]

Colarco, P. R., R. A. Kahn, L. A. Remer, and R. C. Levy. 2014. Impact of satellite viewing-swath width on global and regional aerosol optical thickness statistics and trends Atmospheric Measurement Techniques 7 (7): 2313-2335 [10.5194/amt-7-2313-2014]

Duncan, B. N., A. I. Prados, L. Lamsal, et al. Y. Liu, D. Streets, P. Gupta, E. Hilsenrath, R. A. Kahn, J. E. Nielsen, A. Beyersdorf, S. Burton, A. Fiore, J. Fishman, D. Henze, C. Hostetler, N. A. Krotkov, P. Lee, M. Lin, S. Pawson, G. Pfister, K. E. Pickering, R. B. Pierce, Y. Yoshida, and L. Ziemba. 2014. Satellite data of atmospheric pollution for U.S. air quality applications: Examples of applications, summary of data end-user resources, answers to FAQs, and common mistakes to avoid Atmospheric Environment 94 647-662 [10.1016/j.atmosenv.2014.05.061]

Kahn, R. A. 2014. Aerosols Encyclopedia of Remote Sensing 16-20 [10.1007/978-0-387-36699-9_4]

Chin, M., T. L. Diehl, Q. Tan, et al. J. M. Prospero, R. A. Kahn, L. A. Remer, H. Yu, A. M. Sayer, H. Bian, I. V. Geogdzhayev, B. N. Holben, S. G. Howell, B. J. Huebert, N.-Y. C. Hsu, D. Kim, T. L. Kucsera, R. C. Levy, M. I. Mishchenko, X. Pan, P. K. Quinn, G. L. Schuster, D. G. Streets, S. A. Strode, O. Torres, and W. Zhao. 2014. Multi-decadal aerosol variations from 1980 to 2009: a perspective from observations and a global model Atmos. Chem. Phys. 14 (7): 3657-3690 [10.5194/acp-14-3657-2014]

Kim, D., M. Chin, H. Yu, et al. T. Diehl, Q. Tan, R. A. Kahn, K. Tsigaridis, S. E. Bauer, T. Takemura, L. Pozzoli, N. Bellouin, M. Schulz, S. Peyridieu, A. Chedin, and B. Koffi. 2014. Sources, sinks, and transatlantic transport of North African dust aerosol: A multimodel analysis and comparison with remote sensing data J. Geophys. Res. Atmos. 119 6259-6277 [10.1002/2013JD021099]

Rashki, A., D. Kaskaoutis, A. Goudie, and R. A. Kahn. 2013. Dryness of ephemeral lakes and consequences for dust activity: the case of the Hamoun drainage basin, southeastern Iran Sci. Total Environ. Online [10.1016/j.scitotenv.2013.06.045]

Patadia, F., R. A. Kahn, J. A. Limbacher, et al. S. P. Burton, R. A. Ferrare, C. A. Hostetler, and J. W. Hair. 2013. Aerosol airmass type mapping over the Urban Mexico City region from space-based multi-angle imaging Atmos. Chem. Phys. 13 (18): 9525-9541 [10.5194/acp-13-9525-2013]

Nelson, D. L., M. J. Garay, R. A. Kahn, and B. A. Dunst. 2013. Stereoscopic Height and Wind Retrievals for Aerosol Plumes with the MISR INteractive eXplorer (MINX) Remote Sensing 5 (9): 4593-4628 [10.3390/rs5094593]

Gho, Y., B. Tian, R. A. Kahn, et al. O. Kalashnikova, S. Wong, and D. E. Waliser. 2013. Tropical Atlantic dust and smoke aerosol variations related to the Madden-Julian Oscillation in MODIS and MISR observations J. Geophys. Res. Atmos. 118 (10): 4947-4963 [10.1002/jgrd.50409]

Yu, H., L. A. Remer, R. A. Kahn, M. Chin, and Y. Zhang. 2013. Satellite perspective of aerosol intercontinental transport: From qualitative tracking to quantitative characterization Atmos. Res. 124 73-100 [10.1016/j.atmosres.2012.12.013]

Mallet, M., O. D. Dubovik, P. N. Nabat, F. D. Dulac, and R. Kahn. 2013. Absorption properties of Mediterranean aerosols obtained from multi-year ground-based remote sensing observations Atmos. Chem. Phys. 13 (18): 9195-9210 [10.5194/acp-13-9195-2013]

Kaskaoutis, D. G., R. A. Kahn, P. Gupta, A. Jayaraman, and A. Bartzokas. 2012. Desert Dust Properties, Modelling, and Monitoring Advances in Meteorology 2012 (483632): 1-2 [10.1155/2012/483632]

Scollo, S., R. A. Kahn, D. L. Nelson, et al. M. Coltelli, D. J. Diner, M. J. Garay, and V. J. Realmuto. 2012. MISR observations of Etna volcanic plumes J. Geophys. Res. 117 (D6): D06210 [10.1029/2011JD016625]

Schwartz, S. E., R. J. Charlston, R. A. Kahn, J. A. Ogren, and H. Rodhe. 2012. Reply to “Comments on ‘Why Hasn't Earth Warmed as Much as Expected?’” Journal of Climate 25 (6): 2200-2204 [10.1175/2011JCLI4161.1]

Petrenko, M. M., R. A. Kahn, M. Chin, et al. A. Soja, T. L. Kucsera, and Harshvardhan. 2012. The use of satellite-measured aerosol optical depth to constrain biomass burning emissions source strength in the global model GOCART J. Geophys. Res. 117 (D18): D18212 [10.1029/2012JD017870]

Kahn, R. A. 2012. Reducing the Uncertainties in Direct Aerosol Radiative Forcing Surveys in Geophysics 33 (3-4): 701-721 [10.1007/s10712-011-9153-z]

Ichoku, C. M., R. A. Kahn, and M. Chin. 2012. Satellite contributions to the quantitative characterization of biomass burning for climate modeling Atmos. Res. 111 1-28 [10.1016/j.atmosres.2012.03.007]

Colarco, P. R., L. A. Remer, R. A. Kahn, R. C. Levy, and E. J. Welton. 2012. Implications of satellite swath width on global aerosol optical thickness statistics Atmos. Meas. Tech. Discuss. 5 (2): 2795-2820 [10.5194/amtd-5-2795-2012]

Carboni, E., G. E. Thomas, A. M. Sayer, et al. R. Siddans, C. A. Poulsen, R. G. Grainger, C. Ahn, D. Antoine, S. Bevan, R. Braak, H. Brindley, S. DeSouza-Machado, J. L. Deuzé, D. Diner, F. Ducos, W. Grey, N.-Y. C. Hsu, O. V. Kalashnikova, R. A. Kahn, P. R. North, C. Salustro, A. Smith, D. Tanré, O. Torres, and B. Veihelmann. 2012. Intercomparison of desert dust optical depth from satellite measurements Atmos. Meas. Tech. 5 (8): 1973-2002 [10.5194/amt-5-1973-2012]

Val Martin, M., R. A. Kahn, J. A. Logan, et al. R. Paugam, M. Wooster, and C. M. Ichoku. 2012. Space-based observational constraints for 1-D fire smoke plume-rise models J. Geophys. Res. 117 (D22): D22204 [10.1029/2012JD018370]

Kahn, R. A., and J. A. Limbacher. 2012. Eyjafjallajökull volcano plume particle-type characterization from space-based multi-angle imaging Atmos. Chem. Phys. 12 (20): 9459-9477 [10.5194/acp-12-9459-2012]

Tian, B., D. E. Waliser, R. A. Kahn, and S. Wong. 2011. Modulation of Atlantic aerosols by the Madden-Julian Oscillation J. Geophys. Res. 116 (D15): D15108 [10.1029/2010JD015201]

Shi, Y., J. Zhang, J. S. Reid, et al. E. J. Hyer, T. F. Eck, B. N. Holben, and R. A. Kahn. 2011. A critical examination of spatial biases between MODIS and MISR aerosol products – application for potential AERONET deployment Atmos. Meas. Tech. 4 (12): 2823-2836 [10.5194/amt-4-2823-2011]

Lyapustin, A. I., A. Smirnov, B. N. Holben, et al. M. Chin, D. G. Streets, Z. Lu, R. A. Kahn, I. Slutsker, I. Laszlo, S. Kondragunta, D. Tanre, O. Dubovik, P. Golooub, H.-B. Chen, A. Sinyuk, Y. Wang, and S. Korkin. 2011. Reduction of aerosol absorption in Beijing since 2007 from MODIS and AERONET Geophysical Research Letters 38 (10): L10803 [10.1029/2011GL047306]

Lyapustin, A. I., Y. Wang, I. Laszlo, et al. R. A. Kahn, S. Korkin, L. A. Remer, R. C. Levy, and J. Reid. 2011. Multiangle implementation of atmospheric correction (MAIAC): 2. Aerosol algorithm J. Geophys. Res. 116 (D3): D03211 [10.1029/2010JD014986]

Sessions, W., H. Fuelberg, R. A. Kahn, and D. Winker. 2011. An investigation of methods for injecting emissions from boreal wildfires using WRF-Chem during ARCTAS Atmos. Chem. Phys. 11 (12): 5719-5744 [10.5194/acp-11-5719-2011]

Kahn, R. A., M. Garay, D. Nelson, et al. R. C. Levy, M. Bull, D. Diner, J. Martonchik, E. Hanson, L. A. Remer, and D. Tanre. 2011. Response to “Toward unified satellite climatology of aerosol properties. 3. MODIS versus MISR versus AERONET” Journal of Quantitative Spectroscopy and Radiative Transfer 112 (5): 901-909 [10.1016/j.jqsrt.2010.11.001]

Smirnov, A., B. Holben, D. Giles, et al. I. Stutsker, N. O'Neill, T. Eck, A. Macke, P. Croot, Y. Courcoux, S. Sakerin, T. Smyth, T. Zielinski, G. Zibordi, J. Goes, M. Harvey, P. Quinn, N. Nelson, V. Radionov, C. Duarte, R. Losno, J. Sciare, K. Voss, S. Kinne, N. Nalli, E. Joseph, K. Moorthy, D. Covert, S. Guley, J. Milinevski, P. Larouche, S. Belander, E. Horne, M. Chin, L. Remer, R. Kahn, J. Reid, M. Schulz, C. Heald, J. Zhang, K. Lapina, R. Kleidman, J. Griesfeller, B. Gaitley, Q. Tan, and T. Diehl. 2011. Maritime aerosol network as a component of AERONET – first results and comparison with global aerosol models and satellite retrievals Atmos Meas Tech 4 (3): 583-597 [10.5194/amt-4-583-2011]

van Donkelaar, A., R. V. Martin, M. Brauer, et al. R. A. Kahn, R. C. Levy, C. Verduzco, and P. J. Villeneuve. 2010. Global Estimates of Ambient Fine Particulate Matter Concentrations from Satellite-Based Aerosol Optical Depth: Development and Application Environ Health Perspectives 118 (6): 847-855 [10.1289/ehp.0901623]

Pierce, J. R., R. A. Kahn, M. R. Davis, and J. M. Comstock. 2010. Detecting thin cirrus in Multiangle Imaging Spectroradiometer aerosol retrievals J. Geophys. Res. 115 (D8): D08201 [10.1029/2009JD013019]

Chatterjee, A., A. M. Michalak, R. A. Kahn, et al. S. R. Paradise, A. J. Braverman, and C. E. Miller. 2010. A geostatistical data fusion technique for merging remote sensing and ground-based observations of aerosol optical thickness J. Geophys. Res. 115 (D20): D08201 [10.1029/2009JD013765]

Levy, R. C., L. A. Remer, R. G. Kleidman, et al. S. Mattoo, C. M. Ichoku, R. A. Kahn, and T. F. Eck. 2010. Global evaluation of the Collection 5 MODIS dark-target aerosol products over land Atmos. Chem. Phys. 10 (21): 10399-10420 [10.5194/acp-10-10399-2010]

Bi, L., P. Yang, G. Kattawar, and R. A. Kahn. 2010. Modeling optical properties of mineral aerosol particles by using nonsymmetric hexahedra Applied Optics 49 (3): 334 [10.1364/AO.49.000334]

Mims, S., R. A. Kahn, C. Moroney, et al. B. Gaitley, D. Nelson, and M. Garay. 2010. MISR Stereo Heights of Grassland Fire Smoke Plumes in Australia IEEE Trans. Geosci. Remote Sensing 48 (1): 25-35 [10.1109/TGRS.2009.2027114]

Schwartz, S., R. Charlson, R. Kahn, J. Obren, and H. Rodhe. 2010. Why Hasn’t Earth Warmed as Much as Expected? Journal of Climate 23 (10): 2453-2464 [10.1175/2009JCLI3461.1]

Val, M., J. Logan, R. A. Kahn, et al. F. Leung, D. Nelson, and D. Diner. 2010. Smoke injection heights from fires in North America: analysis of 5 years of satellite observations Atmos. Chem. Phys. 10 (4): 1491-1510 [10.5194/acp-10-1491-2010]

Lyapustin, A., C. Gatebe, R. Kahn, et al. R. Brandt, J. Redemann, P. Russell, M. King, C. Pedersen, S. Gerland, R. Poudyal, A. Marshak, Y. Wang, C. Schaaf, D. Hall, and A. Kokhanovsky. 2010. Analysis of snow bidirectional reflectance from ARCTAS Spring-2008 Campaign Atmos. Chem. Phys. 10 (9): 4359-4375 [10.5194/acp-10-4359-2010]

Chen, Y., Q. Li, R. A. Kahn, and J. T. Randerson. 2009. Quantifying aerosol direct radiative effect with MISR observations: 1. TOA albedo change by aerososl based on land surface types Provider: John Wiley & Sons, Ltd Content:text/plain; charset="UTF-8" TY - JOUR AU - Chen, Yang AU - Li, Qinbin AU - Kahn, Ralph A. AU - Randerson, James T. AU - Diner, David J. C8 - D02109 TI - Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: Top-of-atmosphere albedo change by aerosols based on land surface types JO - Journal of Geophysical Research: Atmospheres JA - J. Geophys. Res. VL - 114 IS - D2 SN - 2156-2202 UR - http://dx.doi.org/10.1029/2008JD010754 DO - 10.1029/2008JD010754 SP - n/a EP - n/a KW - aerosol KW - effect KW - satellite KW - 0305 Aerosols and particles KW - 1630 Impacts of global change KW - 1640 Remote sensing PY - 2009 J. Geophys. Res. 114 D02109 [10.1029/2008JD010754]

Levy, R. C., G. Leptoukh, R. A. Kahn, et al. V. Zubko, A. Gopalan, and L. A. Remer. 2009. A Critical Look at Deriving Monthly Aerosol Optical Depth From Satellite Data IEEE Trans. Geosci. Remote Sensing 47 (8): 2942-2956 [10.1109/TGRS.2009.2013842]

Kahn, R. A., A. Petzold, M. Wendisch, et al. E. Bierwirth, T. Dinter, M. Esselborn, M. Fiebig, B. Heese, P. Knippertz, D. Muller, A. Schladitz, and W. von Hoyningen-Huene. 2009. Desert dust aerosol air mass mapping in the western Sahara, using particle properties derived from space-based multi-angle imaging Tellus B 61 (1): 239-251 [10.1111/j.1600-0889.2008.00398.x]

Johnson, B. T., S. Christopher, J. M. Haywood, et al. S. R. Osborne, S. McFarlane, N.-Y. C. Hsu, C. Salustro, and R. A. Kahn. 2009. Measurements of aerosol properties from aircraft, satellite and ground-based remote sensing: a case-study from the Dust and Biomass-burning Experiment (DABEX) Q.J.R. Meteorol. Soc. 135 (641): 922-934 [10.1002/qj.420]

Chen, Y., Q. Li, R. A. Kahn, J. T. Randerson, and D. J. Diner. 2009. Quantifying aerosol direct radiative effect with Multiangle Imaging Spectroradiometer observations: Top-of-atmosphere albedo change by aerosols based on land surface types J. Geophys. Res. 114 (D2): D02109 [10.1029/2008JD010754]

Bierwirth, E., M. Wendisch, A. Ehrlich, et al. B. Hesse, M. Tesche, D. Althausen, A. Schladitz, D. Muller, S. Otto, T. Trautmann, T. Dinter, W. Von Hoyningne-Huene, and R. A. Kahn. 2009. Spectral surface albedo over Morocco and its impact on radiative forcing of Saharan dust Tellus B 61 (1): 252-269 [10.1111/j.1600-0889.2008.00395.x]

Rind, D., R. A. Kahn, M. Chin, et al. S. Schwartz, L. Remer, G. Feingold, H. Yu, P. Quinn, and R. Halthore. 2009. The Way Forward, in Atmospheric Aerosol Properties and Climate Impacts A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [Mian Chin, Ralph A. Kahn, and Stephen E. Schwartz (eds.)]. National Aeronautics and Space Administration, Washington, D.C., USA.

Rind, D., M. Chin, G. Feingold, et al. D. Streets, R. A. Kahn, S. Schwartz, and H. Yu. 2009. Modeling the Effects of Aerosols on Climate, in Atmospheric Aerosol Properties and Climate Impacts A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [Mian Chin, Ralph A. Kahn, and Stephen E. Schwartz (eds.)]. National Aeronautics and Space Administration, Washington, D.C., USA.

Remer, L., M. Chin, P. DeCola, et al. G. Feingold, R. Halthore, R. A. Kahn, P. Quinn, D. Rind, S. Schwartz, D. Streets, and H. Yu. 2009. Executive Summary, in Atmospheric Aerosol Properties and Climate Impacts A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [Mian Chin, Ralph A. Kahn, and Stephen E. Schwartz (eds.)]. National Aeronautics and Space Administration, Washington, D.C., USA.

Kahn, R. A., H. Yu, S. Schwartz, et al. M. Chin, G. Feingold, L. A. Remer, D. Rind, R. Halthore, and P. L. Decola. 2009. Introduction, in Atmospheric Aerosol Properties and Climate Impacts A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [Mian Chin, Ralph A. Kahn, and Stephen E. Schwartz (eds.)]. National Aeronautics and Space Administration, Washington, D.C., USA.

Yu, H., P. Quinn, G. Feingold, et al. L. Remer, R. A. Kahn, M. Chin, and S. Schwartz. 2009. Remote Sensing and In Situ Measurements of Aerosol Properties, Burdens, and Radiative Forcing in Atmospheric Aerosol Properties and Climate Impacts, A Report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. [Mian Chin, Ralph A. Kahn, and Stephen E. Schwartz (eds.)]. National Aeronautics and Space Administration, Washington, D.C., USA.

Dinter, T., W. Hoyningen-Huene, J. P. Burrows, et al. A. Kokhanovsky, E. Bierwirth, M. Wendisch, D. Muler, R. A. Kahn, and M. Diouri. 2009. Retrieval of aerosol optical thickness for desert conditions using MERIS observations during the SAMUM campaign Tellus B 61 (1): 229-238 [10.1111/j.1600-0889.2008.00391.x]

Liu, Y., D. Chen, and R. A. Kahn. 2009. Review of the applications of Multiangle Imaging SpectroRadiometer to air quality research Science in China D 132-144

Li, Z., X. Zhao, R. A. Kahn, et al. M. I. Mishchenko, L. A. Remer, K. Lee, M. Wang, I. Laszlo, T. Nakajima, and H. Maring. 2009. Uncertainties in satellite remote sensing of aerosols and impact on monitoring its long-term trend: a review and perspective Ann Geophys 27 (7): 2755-2770 [10.5194/angeo-27-2755-2009]

Chen, Y., Q. Li, J. Randerson, et al. E. Lyons, R. A. Kahn, D. Nelson, and D. Diner. 2009. The sensitivity of CO and aerosol transport to the temporal and vertical distribution of North American boreal fire emissions Atmos. Chem. Phys. 9 (17): 6559-6580 [10.5194/acp-9-6559-2009]

Kahn, R. A., D. Nelson, M. Garay, et al. R. C. Levy, M. Bull, J. Martonchik, D. Diner, S. Paradise, E. Hansen, and L. A. Remer. 2009. MISR Aerosol Product Attributes and Statistical Comparisons With MODIS IEEE Trans. Geosci. Remote Sensing 47 (12): 4095-4114 [10.1109/TGRS.2009.2023115]

Myhre, G., T. Berglen, M. Johnsurd, et al. C. Holye, T. Berntsen, S. Christopher, I. S. Isaksen, T. Jones, R. Kahn, N. Lowb, P. Quinn, L. Remer, and K. Yttri. 2009. Modelled radiative forcing of the direct aerosol effect with multi-observation evaluation Atmos Chem Phys 9 (4): 1365-1392 [10.5194/acp-9-1365-2009]

Imhoff, M., R. Wolfe, D. Diner, et al. M. Chopping, R. A. Kahn, V. Salomonson, J. Gille, J. Drummond, D. Edwards, N. Loeb, B. Wielicki, M. Abrams, B. Eng, S.-C. Tsay, and K. Ranson. 2009. An Overview of Terra Mission Results Related to the Carbon Cycle Geography Compass 3 (2): 536-559 [10.1111/j.1749-8198.2008.00183.x]

Liu, Y., R. A. Kahn, A. Chaloulakou, and P. Koutrakis. 2009. Analysis of the impact of the forest fires in August 2007 on air quality of Athens using multi-sensor aerosol remote sensing data, meteorology and surface observations Atmosph Environ 43 (21): 3310-3318 [10.1016/j.atmosenv.2009.04.010]

Lallart, P., R. A. Kahn, and D. Tanre. 2008. POLDER2/ADEOSII, MISR, and MODIS/Terra reflectance comparisons J. Geophys. Res. 113 (D14): D14S02 [10.1029/2007JD009656]

Kalashnikova, O. V., and R. A. Kahn. 2008. Mineral dust plume evolution over the Atlantic from MISR and MODIS aerosol retrievals J. Geophys. Res. 113 (D24): D24204 [10.1029/2008JD010083]

Kahn, R. A., Y. Chen, D. Nelson, et al. F.-Y. Leung, Q. Li, D. Diner, and J. Logan. 2008. Wildfire smoke injection heights: Two perspectives from space Geophys. Res. Lett 35 (4): L04809 [10.1029/2007GL032165]

Chen, W.-T., R. A. Kahn, D. Nelson, K. Yau, and J. Seinfeld. 2008. Sensitivity of multiangle imaging to the optical and microphysical properties of biomass burning aerosols J. Geophys. Res. 113 (D10): D10203 [10.1029/2007JD009414]

Reid, J. S., S. J. Piketh, R. P. Burger, et al. K. E. Ross, A. L. Walker, R. T. Bruintjes, B. N. Holben, N.-Y. C. Hsu, T. L. Jensen, R. A. Kahn, A. P. Kuciauskas, A. AlMandoos, A. AlMangoosh, S. D. Miller, J. N. Porter, S.-C. Tsay, and D. L. Westphal. 2008. An overview of UAE<sup>2</sup> flight operations: Observations of summertime atmospheric thermodynamic and aerosol profiles of the southern Arabian Gulf J. Geophys. Res. 113 (D14): D14213 [10.1029/2007JD009435]

Tian, B., D. E. Waliser, R. A. Kahn, et al. Q. Li, Y. L. Yung, T. Tyranowski, I. V. Geogdzhayev, M. I. Mishchenko, O. Torres, and A. Smirnov. 2008. Does the Madden-Julian Oscillation influence aerosol variability? J. Geophys. Res. 113 (D12): D12215 [10.1029/2007JD009372]

Bi, L., P. Yang, G. Kattawar, and R. A. Kahn. 2008. Single-scattering properties of triaxial ellipsoidal particles for a size parameter range from the Rayleigh to geometric-optics regimes Applied Optics 48 (1): 114 [10.1364/AO.48.000114]

Dubovik, O., T. Lapyonok, Y. Kaufman, et al. M. Chin, P. Ginoux, R. Kahn, and A. Sinyuk. 2008. Retrieving global aerosol sources from satellites using inverse modeling Atmos. Chem. Phys. 8 (2): 209-250 [10.5194/acp-8-209-2008]

Russell, P. B., J. M. Livingston, J. Redemann, et al. B. Schmid, S. Ramirez, J. Eilers, R. A. Kahn, A. Chu, P. K. Quinn, M. J. Rood, and W. Wang. 2007. Multi-grid-cell validation of satellite aerosol property retrievals in INTEX/ITCT/ICARTT 2004 J. Geophys. Res. 112 (D12): D12S09 [10.1029/2006JD007606]

Kahn, R. A., W.-H. Li, C. Moroney, et al. D. J. Diner, J. V. Martonchik, E. Fishbein, and R. C. Levy. 2007. Satellite-derived aerosol optical depth over dark water from MISR and MODIS: Comparisons with AERONET and implications for climatological studies J. Geophys. Res. 112 (D18): D11205 [10.1029/2006JD008175]

Chylek, P., U. Lohmann, M. Dubey, et al. M. I. Mishchenko, R. A. Kahn, and A. Ohmura. 2007. Limits on climate sensitivity derived from recent satellite and surface observations J. Geophys. Res. 112 (D24): D24S04 [10.1029/2007JD008740]

Mazzoni, D., J. Logan, D. Diner, et al. R. A. Kahn, L. Tong, and Q. Li. 2007. A data-mining approach to associating MISR smoke plume heights with MODIS fire measurements Remote Sensing of Environment 107 (1-2): 138-148 [10.1016/j.rse.2006.08.014]

Liu, Y., M. Franklin, R. Kahn, and P. Koutrakis. 2007. Using aerosol optical thickness to predict ground-level PM2.5 concentrations in the St. Louis area: A comparison between MISR and MODIS Remote Sensing of Environment 107 (1-2): 33-44 [10.1016/j.rse.2006.05.022]

Sinyuk, A., O. Dubovik, B. Holben, et al. T. Eck, F. Breon, J. Martonchik, R. Kahn, D. Diner, E. Vermote, Y. Kaurman, J. Roger, T. Lapyonok, and I. Slutsker. 2007. Simultaneous retrieval of aerosol and surface properties from a combination of AERONET and satellite data Remote Sensing of Environment 107 (1-2): 90-108 [10.1016/j.rse.2006.07.022]

Liu, Y., R. Kahn, S. Turquety, R. Yantosca, and P. Koutrakis. 2007. Estimating Fine Particulate Matter Component Concentrations and Size Distributions Using Satellite-Retrieved Fractional Aerosol Optical Depth: Part 2—A Case Study J Air & Waste Management Assoc 57 (11): 1360-1369 [10.3155/1047-3289.57.11.1360]

Fox, D., E. Gonzales, R. Kahn, and J. Martonchik. 2007. Near-surface wind speed retrieval from space-based, multi-angle imaging of ocean sun glint patterns Remote Sens Environ 107 (1-2): 223-231 [10.1016/j.rse.2006.10.021]

Bruegge, C., D. Diner, R. Kahn, et al. N. Chrien, M. Helmlinger, B. Gaitley, and W. Abdou. 2007. The MISR radiometric calibration process Remote Sensing of Environment 107 (1-2): 2-11 [10.1016/j.rse.2006.07.024]

Liu, Y., R. Kahn, and P. Koutrakis. 2007. Estimating Fine Particulate Matter Component Concentrations and Size Distributions Using Satellite-Retrieved Fractional Aerosol Optical Depth: Part 1—Method Development J Air & Waste Management Assoc 57 (11): 1351-1359 [10.3155/1047-3289.57.11.1351]

Lyapustin, A. I., Y. Wang, R. Kahn, et al. X. Xiong, A. Ignatov, R. E. Wolfe, A. Wu, B. N. Holben, and C. Bruegge. 2007. Analysis of MODIS–MISR calibration differences using surface albedo around AERONET sites and cloud reflectance Remote Sensing of Environment 107 (1-2): 12-21 [10.1016/j.rse.2006.09.028]

Kalashnikova, O. V., and R. A. Kahn. 2006. Ability of multiangle remote sensing observations to identify and distinguish mineral dust types: 2. Sensitivity over dark water J. Geophys. Res. 111 (D11): D11207 [10.1029/2005JD006756]

Smirnov, A., B. N. Holben, S. M. Sakerin, et al. D. M. Kabanov, I. Slutsker, M. Chin, T. L. Diehl, L. A. Remer, R. Kahn, A. Ignatov, L. Liu, M. I. Mishchenko, T. F. Eck, T. L. Kucsera, D. Giles, and O. V. Kopelevich. 2006. Ship-based aerosol optical depth measurements in the Atlantic Ocean: Comparison with satellite retrievals and GOCART model Geophys Res Lett 33 (14): L14817 [10.1029/2006GL026051]

Yu, H., Y. J. Kaufman, M. Chin, et al. G. Feingold, L. A. Remer, T. L. Anderson, Y. Balkanski, N. Bellouin, O. Boucher, S. Christopher, P. L. Decola, R. A. Kahn, D. Koch, N. Loeb, M. S. Reddy, M. Schulz, T. Takemura, and M. Zhou. 2006. A review of measurement-based assessments of the aerosol direct radiative effect and forcing Atmos. Chem. Phys. 6 (3): 613-666 [10.5194/acp-6-613-2006]

Reidmiller, D., P. Hobbs, and R. A. Kahn. 2006. Aerosol Optical Properties and Particle Size Distributions on the East Coast of the United States Derived from Airborne In Situ and Remote Sensing Measurements J Atmos Sci 63 (3): 785-814 [10.1175/JAS3674.1]

Stenchikov, G., N. Lahoti, P. Lioy, et al. P. Georgopoulos, D. Diner, and R. A. Kahn. 2006. Multiscale plume transport from collapse of the World Trade Center on September 11 2001 Environ Fluid Mechan 6 (5): 425-450 [10.1007/s10652-006-9001-8]

Smith, W., T. Charlock, R. A. Kahn, et al. J. Martins, L. A. Remer, P. Hobbs, J. Redemann, and C. Rutledge. 2005. EOS <i>Terra</i> Aerosol and Radiative Flux Validation: An overview of the Chesapeake LIghthouse and Aircraft Measurements for Satellites (CLAMS) experiment J Atmos Sci 62 (4): 903-918 [10.1175/JAS3398.1]

Redemann, J., B. Schmid, J. Eilers, et al. R. A. Kahn, R. C. Levy, P. Russell, J. Livingston, P. Hobbs, J. W. Smith, and B. N. Holben. 2005. Suborbital Measurements of Spectral Aerosol Optical Depth and Its Variability at Subsatellite Grid Scales in Support of CLAMS 2001 J. Atmos. Sci. 62 (4): 993-1007 [10.1175/JAS3387.1]

Kalashnikova, O. V., R. A. Kahn, I. N. Sokolik, and W.-H. Li. 2005. Ability of multiangle remote sensing observations to identify and distinguish mineral dust types: Optical models and retrievals of optically thick plumes J. Geophys. Res. 110 (D18): [10.1029/2004JD004550]

Myhre, G., F. Stordal, M. Johnsrud, et al. D. J. Diner, I. V. Geogdzhayev, J. M. Haywood, B. N. Holben, T. Holzer-Popp, A. Ignatov, R. A. Kahn, Y. J. Kaufman, N. Loeb, J. V. Martonchik, M. I. Mishchenko, N. R. Nalli, L. A. Remer, M. Schroedter-Homscheidt, D. Tanre, O. Torres, and M. Wang. 2005. Intercomparison of satellite retrieved aerosol optical depth over ocean during the period September 1997 to December 2000 Atmos. Chem. Phys. 5 (6): 1697-1719 [10.5194/acp-5-1697-2005]

Kahn, R., W. Li, J. Martonchik, et al. C. Bruegge, D. Diner, B. Gaitley, W. Abdou, O. Dubovik, B. Holben, S. Smirnov, Z. Jin, and D. Clark. 2005. MISR low-light-level calibration and implications for aerosol retrieval over dark water J Atmos Sci 62 1032-1062

Kahn, R., B. Gaitley, J. Martonchik, et al. D. Diner, K. Crean, and B. Holben. 2005. Multiangle Imaging Spectroradiometer (MISR) global aerosol optical depth validation based on 2 years of coincident Aerosol Robotic Network (AERONET) observations J. Geophys. Res. 110 (D10): D10S04 [10.1029/2004JD004706]

Jin, Z., T. Charlock, W. Smith, et al. K. Rutledge, G. Cota, R. Kahn, J. Redemann, T. Zhang, D. Rutan, and F. Rose. 2005. Radiation measurements and model simulation for CLAMS J Atmos Sci 62 1053-1071

Diner, D., B. Braswell, R. Davies, et al. N. Gobron, J. Hu, Y. Jin, R. A. Kahn, Y. Knyazikhin, N. Loeb, J. Muller, A. Nolin, B. Pinty, C. Schaaf, G. Seiz, and J. Stroeve. 2005. The value of multiangle measurements for retrieving structurally and radiatively consistent properties of clouds, aerosols, and surfaces Remote Sensing of Environment 97 (4): 495-518 [10.1016/j.rse.2005.06.006]

Diner, D., J. Martonchik, R. A. Kahn, et al. B. Pinty, N. Gobron, D. Nelson, and B. Holben. 2005. Using angular and spectral shape similarity constraints to improve MISR aerosol and surface retrievals over land Remote Sensing of Environment 94 (2): 155-171 [10.1016/j.rse.2004.09.009]

Kahn, R. A., B. J. Gaitley, J. V. Martonchik, et al. D. J. Diner, K. A. Crean, and B. N. Holben. 2005. Multiangle Imaging Spectroradiometer (MISR) global aerosol optical depth validation based on 2 years of coincident Aerosol Robotic Network (AERONET) observations J Geophys Res 110 (D10S04): 40194

Kahn, R., W.-H. Li, J. V. Martonchik, et al. C. J. Bruegge, D. J. Diner, B. J. Gaitley, W. Abdou, O. Dubovik, B. N. Holben, A. Smirnov, Z. Jin, and D. Clark. 2005. MISR Calibration and Implications for Low-Light-Level Aerosol Retrieval over Dark Water J Atmos Sci 62 1032-1052

Abdou, W. A., D. J. Diner, J. V. Martonchik, et al. C. J. Bruegge, R. A. Kahn, B. J. Gaitley, K. A. Crean, L. A. Remer, and B. N. Holben. 2005. Comparison of coincident Multiangle Imaging Spectroradiometer and Moderate Resolution Imaging Spectroradiometer aerosol optical depths over land and ocean scenes containing Aerosol Robotic Network sites J. Geophys. Res. 110 (D10): D10S07 [10.1029/2004JD004693]

Martonchik, J. V., D. J. Diner, R. A. Kahn, B. J. Gaitley, and B. N. Holben. 2004. Comparison of MISR and AERONET aerosol optical depths over desert sites Geophys. Res. Let 31 (16): [10.1029/2004GL019807]

DiGirolamo, L., T. C. Bond, D. Bramer, et al. D. J. Diner, F. Fettinger, R. A. Kahn, J. V. Martonchik, M. V. Ramana, V. Ramanathan, and P. J. Rasch. 2004. Analysis of Multi-angle Imaging SpectroRadiometer (MISR) aerosol optical depths over greater India during winter 2001-2004 Geophys. Res. Lett. 31 L23115 [10.1029/2004GL021273]

Diner, D. J., T. P. Ackerman, T. L. Anderson, et al. J. Bosenberg, A. J. Braverman, R. J. Charlson, W. D. Collins, R. Davies, B. N. Holben, C. A. Hostetler, R. A. Kahn, J. V. Martonchik, R. T. Menzies, M. A. Miller, J. A. Ogren, J. E. Penner, P. J. Rasch, S. E. Schwartz, J. H. Seinfeld, G. L. Stephens, O. Torres, L. D. Travis, B. A. Wielicki, and B. Yu. 2004. PARAGON: An Integrated Approach for Characterizing Aerosol Climate Impacts and Environmental Interactions Bull Amer Meteorol Soc 85 (10): 1491-1501 [10.1175/BAMS-85-10-1491]

Diner, D. J., R. T. Menzies, R. A. Kahn, et al. T. L. Anderson, J. Bosenberg, R. J. Charlson, B. N. Holben, C. A. Hostetler, M. A. Miller, J. A. Ogren, G. L. Stephens, O. Torres, B. A. Wielicki, P. J. Rasch, L. D. Travis, and W. D. Collins. 2004. Using the PARAGON Framework to Establish an Accurate, Consistent, and Cohesive Long-Term Aerosol Record Bulletin of the American Meteorological Society 85 (10): 1535-1548 [10.1175/BAMS-85-10-1535]

Diner, D., R. Menzies, R. Kahn, et al. T. Anderson, J. Bosenberg, R. Charlson, B. Holben, C. Hostetler, M. Miller, J. Ogren, G. Stephens, O. Torres, B. Wielicki, P. Rasch, L. Travis, and W. Collins. 2004. Using the PARAGON framework to establish an accurate consistent and cohesive long-term aerosol record Bull Am Met Soc 85 1535-1548

Ackerman, T., A. Braverman, D. Diner, et al. T. Anderson, R. A. Kahn, J. Martonchik, J. Penner, P. Rasch, B. Wielicki, and B. Yu. 2004. Integrating and Interpreting Aerosol Observations and Models within the PARAGON Framework Bull Am Met Soc 85 (10): 1523-1533 [10.1175/BAMS-85-10-1523]

Seinfeld, J., R. A. Kahn, T. Anderson, et al. R. Charlson, R. Davies, D. Diner, J. Ogren, S. Schwartz, and B. Wielicki. 2004. Scientific objectives, measurement need,s and challenges motivating the PARAGON aerosol initiative Bull Am Met Soc 85 1503-1509

Kahn, R. A., J. Ogren, T. Ackerman, et al. J. Bosenberg, R. Charlson, D. Diner, B. N. Holben, R. Menzies, M. Miller, and J. Seinfeld. 2004. Aerosol data sources and their roles within PARAGON Bull Am Met Soc 85 (10): 1511-1522 [10.1175/BAMS-85-10-1511]

Kahn, R., J. Anderson, T. Anderson, et al. T. Bates, F. Brechtel, A. Clarke, E. Dutton, R. Flagan, R. Frouin, H. Fukushima, B. Holben, S. Howell, B. Huebert, A. Jefferson, H. Jonsson, K. Carricol, O. Kalashnikova, J. Kim, S. Kim, P. Kus, W. Li, J. Livingston, S. Masonis, C. McNaughton, J. Merrill, S. Mukai, T. Murayama, T. Nakajima, P. Quinn, J. Redemann, M. Rood, P. Russell, I. Sano, B. Schmid, J. Seinfeld, N. Sugimoto, J. Wang, E. J. Welton, J. Won, and S. Yoon. 2004. Environmental snapshots from ACE-Asia J. Geophys. Res. 109 (D19): D19S14 [10.1029/2003JD004339]

Schmid, B., J. Redemann, P. Russell, et al. P. Hobbs, D. L. Hlavka, M. J. Mcgill, B. Holben, E. J. Welton, J. Campbell, O. Torres, R. A. Kahn, D. Diner, M. Helmlinger, D. Chu, C. RoblesGonzalez, and G. deLeeuw. 2003. Coordinated airborne, spaceborne, and ground-based measurements of massive thick aerosol layers during the dry season in southern Africa J. Geophys. Res. 108 (D13): 8496 [10.1029/2002JD002297]

Martonchik, J., R. A. Kahn, D. Diner, and R. West. 2001. Comments on: Retrieval of aerosol properties over the ocean using multispectral and multiangle photopolarimetric measurements from the Research Scanning Polarimeter Geophys Res Lett 28 (17): 3275-3276 [10.1029/2001GL013201]

Kahn, R. A., P. Banerjee, D. McDonald, and J. Martonchik. 2001. Aerosol properties derived from aircraft multi-angle imaging over Monterey Bay J Geophys Res 106 (D11): 11,977-11,995 [10.1029/2000JD900740]

Pinty, B., M. M. Verstraete, N. Gobron, et al. F. Roveda, Y. Govaerts, J. V. Martonchik, D. J. Diner, and R. A. Kahn. 2001. Exploitation of surface albedo derived from the Meteosat data to characterize land surface changes Remote Sensing and Climate Modeling: Synergies and Limitations 51-67

Diner, D. J., W. A. Abdou, J. E. Conel, et al. K. A. Crean, B. J. Gaitley, M. Helmlinger, R. A. Kahn, J. V. Martonchik, S. H. Pilorz, and B. N. Holben. 2001. MISR aerosol optical depth retrievals over southern Africa during the SAFARI-2000 Dry Season Campaign Geophys. Res. Lett 28 (16): 3127-3130 [10.1029/2001GL013188]

Diner, D., W. Abdou, J. Conel, et al. K. Crean, B. Gaitley, M. Helmlinger, R. Kahn, J. Martonchik, and S. Pilorz. 2001. MISR aerosol retrievals over southern Africa during the SAFARI-2000 dry season campaign Geophys Res Lett 28 3127-3130

Kahn, R., P. Banerjee, and D. McDonald. 2001. The sensitivity of multiangle imaging to natural mixtures of aerosols over ocean J Geophys Res 106 (D16): 18219-18238

Pinty, B., F. Roveda, M. Verstraete, et al. N. Gobron, Y. Covaerts, J. Martonchik, D. Diner, and R. Kahn. 2000. Surface Albedo Retrieval from METEOSAT: Part 1: Theory J Geophys Res 105 18099-18112

Kahn, R. A., and A. Braverman. 1999. What shall we do with the data we are expecting from upcoming Earth observation satellites? J. Comput. Graph. Statistics 575-588

Martonchik, J. V., D. J. Diner, R. A. Kahn, et al. T. P. Ackerman, M. M. Verstraete, B. Pinty, and H. T. Gordon. 1998. Techniques for the Retrieval of aerosol properties over land ocean using multiangle data IEEE Trans. Geosci. Remt. Sensing 36 (4): 1212-1227 [10.1109/36.701027]

Kahn, R. A., P. Banerjee, D. MacDonald, and D. Diner. 1998. Sensitivity of multiangle imaging to aerosol optical depth and to pure-particle size distribution and composition over ocean J. Geophys. Res. 103 (D24): 32,195-32,213 [10.1029/98JD01752]

Diner, D. J., J. C. Beckert, T. H. Reilly, et al. C. J. Bruegge, J. E. Conel, R. A. Kahn, J. V. Martonchik, T. P. Ackerman, R. Davies, S. W. Gerstl, H. R. Gordon, J.-P. Muller, R. Myneni, P. J. Sellers, B. Pinty, and M. M. Verstraete. 1998. Multi-angle Imaging SpectroRadiometer (MISR) instrument description and experiment overview IEEE Trans. Geosci. Remote Sensing 36 (4): 1072-1087 [10.1109/36.700992]

Bruegge, C., N. Chrien, D. Diner, R. A. Kahn, and J. Martonchik. 1998. MISR radiometric uncertainty analyses and their utilization within geophysical retrievals Metrologia 35 571-579

Abdou, W. A., J. V. Martonchik, R. A. Kahn, R. West, and D. Diner. 1997. A modified linear-mixing method for calculating atmospheric path radiances of aerosol mixtures J. Geophys. Res 102 (D14): 16,883-16,888 [10.1029/96JD03434]

Kahn, R. A., and D. Wenkert. 1997. Earth Observing System Encyclopedia of Planetary Sciences 211-215

Conel, J. E., W. C. Ledeboer, S. H. Pilorz, et al. J. V. Martonchik, R. A. Kahn, W. Abdou, C. Bruegge, M. C. Helmlinger, and B. J. Gaitley. 1997. Ground-based validation of the EOS Multi-angle Imaging SpectroRadiometer (MISR) aerosol retrieval algorithms and science data products Geoscience and Remote Sensing (IGARSS '97. Remote Sensing - A Scientific Vision for Sustainable Development, 1997 IEEE International) 4 1743-1748

Mishchenko, M. I., L. D. Travis, R. A. Kahn, and R. A. West. 1997. Modeling phase functions for dustlike tropospheric aerosols using a shape mixture of randomly oriented polydisperse spheroids J. Geophys. Res. 102 (D14): 16831-16847 [10.1029/96JD02110]

Kahn, R. A., R. West, D. McDonald, B. Rheingans, and M. I. Mishchenko. 1997. Sensitivity of multiangle remote sensing observations to aerosol sphericity J. Geophys. Res. 102 (D14): 16861-16870 [10.1029/96JD01934]

Kahn, R. A. 1995. Temperature structure of a Martian local dust storm J. Geophys. Res 100 5265-5275

James, P. B., R. T. Clancy, S. W. Lee, et al. L. J. Martin, R. B. Singer, E. Smith, R. A. Kahn, and R. W. Zurek. 1994. Monitoring Mars with the Hubble Space Telescope: 1990-1991 Icarus 109 79-101

Kahn, R. A., S. W. Lee, L. J. Martin, and R. W. Zurek. 1992. The Martian Dust Cycle Mars 1017-1053

Kahn, R. A., and J. Appleby. 1991. Planetary Atmospheres: U.S. National Report to the International Union of Geodesy and Geophysics 1987-1990 Reviews of Geophysics Supplement 328-337

Kahn, R. A. 1990. Ice haze, snow, and the Mars water cycle J. Geophys. Res. 95 (B9): 14,677–14,693 [10.1029/JB095iB09p14677]

Plaut, J., R. A. Kahn, E. Guinness, and R. Arvidson. 1988. Accumulation of sedimentary debris in the south polar region of Mars, and implications for climate history Icarus 76 (2): 357-377 [10.1016/0019-1035(88)90076-0]

Kahn, R. A., E. Guinness, and R. Arvidson. 1986. Loss of small-scale surface texture in Viking Orbiter images due to atmospheric aerosols, and implications for inferences about surface history Icarus 22-38

Jaquin, F., P. Gierasch, and R. A. Kahn. 1986. The vertical structure of limb hazes in the Martian atmosphere Icarus 442-461

Kahn, R. A. 1985. The Evolution of CO2 on Mars Icarus 175-190

Kahn, R. A. 1984. The spatial and seasonal distribution of Martian clouds, and some meteorological implications J. Geophys. Res. 6672-6688

Kahn, R. A. 1983. Some observational constraints on the global-scale wind systems of Mars J. Geophys. Res. 88 (A12): 10189 [10.1029/JA088iA12p10189]

Kahn, R. A. 1982. Deducing the age of the dense Venus atmosphere Icarus 49 (1): 71-85 [10.1016/0019-1035(82)90057-4]

Kahn, R. A., and P. Gierasch. 1982. Long cloud observations on Mars and implications for boundary layer characteristics over slopes J. Geophys. Res. 867-880

Kahn, R. A., R. Goody, and J. Pollack. 1981. The Martian twilight J. Geophys. Res. 5833-5838

Kahn, R. A. 1980. Some properties of the Martian atmosphere obtained from the Viking experiments Ph.D. thesis, Harvard University

Pollack, J. B., D. S. Colburn, M. Flasar, et al. R. A. Kahn, C. E. Carlston, and D. Pidek. 1979. Properties and effects of dust particles suspended in the Martian atmosphere J. Geophys. Res. 84 (B6): 2929 [10.1029/JB084iB06p02929]

Pollack, J. B., D. Colburn, R. A. Kahn, et al. J. Hunter, W. Van Camp, C. E. Carlston, and M. R. Wolf. 1977. Properties of aerosols in the Martian atmosphere, as inferred from Viking Lander imaging data J. Geophys. Res. 82 (28): 4479-4496 [10.1029/JS082i028p04479]

Mutch, T. A., S. U. Grenander, K. L. Jones, et al. W. Patterson, R. E. Arvidson, E. A. Guinness, P. Avrin, C. Carlston, B. A. Binder, C. Sagan, E. W. Dunham, P. L. Fox, D. C. Pieri, F. O. Huck, C. W. Rowland, G. R. Taylor, S. D. Wall, R. A. Kahn, E. C. Levinthal, S. Liebes, R. B. Tucker, E. C. Morris, J. B. Pollack, R. S. Saunders, and M. R. Wolf. 1976. The Surface of Mars: The View from the Viking 2 Lander Science 194 (4271): 1277-1283 [10.1126/science.194.4271.1277]

Non-Refereed

Kahn, R. 2015. SATELLITES AND SATELLITE REMOTE SENSING | Aerosol Measurements Encyclopedia of Atmospheric Sciences 51-66 [10.1016/b978-0-12-382225-3.00347-9]

Martonchik, J. V., R. A. Kahn, and D. J. Diner. 2009. Retrieval of aerosol properties over land using MISR observations Satellite Aerosol Remote Sensing over Land 267-293 [10.1007/978-3-540-69397-0_9]

Lyapustin, A. I., Y. Wang, R. A. Kahn, et al. X. Xiong, A. Ignatov, R. E. Wolfe, A. Wu, and C. Bruegge. 2006. Analysis of calibration differences between MODIS and MISR Proc SPIE Int Soc Opt Eng 6298 9 pp [10.1117/12.680896]

Kalashnikova, O. V., D. J. Diner, R. A. Kahn, and B. Gaitley. 2004. Dust aerosol retrieval results from MISR SPIE, Fourth Intern. Asia-Pacific Environ. Remt. Sens. Symp., Nov., 8-11

Diner, D., R. A. Kahn, C. J. Bruegge, et al. J. V. Martonchik, W. A. Abdou, B. J. Gaitley, M. C. Helmlinger, O. V. Kalashnikova, and W.-H. Li. 2004. Refinements to MISR's radiometric calibration and implications for establishing a climate-quality aerosol observing system Proc. SPIE 5652 57-65

Bruegge, C. J., W. A. Abdou, D. J. Diner, et al. B. J. Gaitley, M. C. Helmlinger, R. A. Kahn, and J. V. Maronchik. 2004. Validating the MISR radiometric scale for the ocean aerosol science communities Post-launch calibration of satellite sensors 103-115

Kinne, S., B. N. Holben, T. F. Eck, et al. A. Smirnov, O. Dubovik, I. Slutsker, D. Tanre, G. Zibozdi, U. Lohmann, S. Ghan, R. Easter, M. Chin, P. Ginoux, T. Takemura, I. Tegen, D. Koch, R. A. Kahn, E. Vermote, L. Stowe, O. Torres, M. Mishchenko, I. Geogdzhayev, and A. Hiragushi. 2001. How well do aerosol retrievals from satellites and representation in global circulation models match ground-based AERONET aerosol statistics? Remote Sensing and Climate Modeling: Synergies and Limitations 103-158

Gierasch, P. J., R. E. Goody, R. E. Young, et al. D. Crisp, C. Edwards, R. A. Kahn, D. Rider, A. DelGenio, R. Greeley, A. Hou, C. B. Leovy, D. McCleese, and M. Newman. 1997. The general circulation of the Venus atmosphere: An assessment Venus 459-500

Kahn, R. A., and Et al.. 1985. The Synoptic-Scale Camera, a PI proposal for the Mars Observer Mission NASA

Selected Public Outreach

PUMAS (Practical Uses of Math And Science) Editor and founder

October 1996 - Present

PUMAS is the On-line Journal of Math and Science Examples for Pre-College Education.


PUMAS is an on-line journal, a collection of brief examples showing how math and science topics taught in K-12 classes can be used in interesting settings, including everyday life. The examples are written primarily by scientists, engineers, and other content experts having practical experience with the material. They are aimed mainly at classroom teachers and are available to all interested parties via the PUMAS web site. Our goal is to capture, for the benefit of pre-college education, the flavor of the vast experience that working scientists have with interesting and practical uses of math and science.

 

PUMAS examples allow scientists to share their own experience of how the topics covered in pre-college math and science classes can actually be used.  Examples may be anecdotes, activities, demonstrations, descriptions of "neat ideas", formal exercises, or puzzles. They may be written in any style that serves the material well.  Each example is peer-reviewed by at least one scientist with a relevant background, and at least one teacher at an appropriate grade level. Once accepted, a PUMAS example is a citable reference, in a refereed journal for pre-college science education.

 

PUMAS asks scientists to contribute what they are best equipped to contribute, their understanding of practical uses, and that extra spark that comes from having real experience with the material. Contributors spend a minimum time on logistics, as PUMAS provides the infrastructure, connection to the curriculum, and dissemination to a world-wide audience of pre-college teachers.


Teachers can search the PUMAS collection based on curriculum topic, grade level, or subject. They can select relevant examples, and develop ideas of their own about how to integrate the material into their lesson plans.



NASA Disaster Response effort; Active Aerosol Plume-height (AAP) Project

April 2016 - Present

Kahn and his group contribute regularly to the NASA Disaster Response effort, providing plume height, wind vector, and particle-property mapping for wildfire, volcano, and dust plumes whenever possible, using observations from the Multi-angle Imaging SpectroRadiometer (MISR) instrument. Some notable recent contributions include MISR results for the La Soufriere volcano eruption in 2021, when MISR happened to capture the peak of the eruption. MISR plume-height and particle property information contributed directly to first-responder air quality and aviation hazard modeling in this case. During the 2020 wildfire season in the western US, MISR plume-height and smoke-plume extent mapping was part of the larger effort to model the environmental impacts of multiple fires. MISR also captured the eruption plume of the Hunga Tonga volcano in January 2022 multiple times, again providing plume-height mapping and constraints on particle-property evolution.

NASA Earth Observatory Advisory Panel

1998 - Present

Kahn has been a member of the NASA Earth Observatory advisory panel since the inception of this widely used resource for education and outreach. He frequently provides background science explanations and reviews of EO stories, and contributes to stories covering satellite observations and the impacts of airborne particles on climate and air quality.

Contact Us

Jocelyn Lynch
Project Support Specialist
301-286-6066
jocelyn.m.lynch@nasa.gov
Ellie Jeffries
Project Support Specialist
301-286-6066
ellen.e.jeffries@nasa.gov

Technical issues with this website may be reported to karen.smale@nasa.gov.
General inquiries about the scientific programs at NASA's Goddard Space Flight Center may be directed to the Center Office of Communications at 1.301.286.8955.