Sciences and Exploration Directorate

Stephen D Steenrod

(RESEARCH ANALYST)

 stephen.d.steenrod@nasa.gov

 301.614.6054

Org Code: 614

NASA/GSFC
Mail Code: 614
Greenbelt, MD 20771

Employer: UNIVERSITY OF MARYLAND BALTIMORE CO

Positions/Employment


Research Analyst

University of Maryland – Baltimore County - NASA GSFC

January 2006 - May 2011

Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for The GMI project studying chemical and transport aspects of the lower and middle atmosphere, including: development and adaptation of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output; system administration of over 20 Linux (Gentoo) workstations.


Task Leader

Space Science and Applications, Inc. - NASA GSFC

December 2000 - January 2006

Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for projects studying chemical and dynamical aspects of the lower and middle atmosphere, including: development, optimization, adaptation, and multiprocessing of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output, satellite data and meteorological synoptic analyses; development of general user software to allow simple access to large central databases of satellite data and model output; system administration of SGI (Irix) and Linux (RedHat Core2) workstations.


Senior Analyst

Applied Research Corp./Emergent Information Tech., Inc. - NASA GSFC

October 1983 - December 2000

Member of Atmospheric Chemistry and Dynamics Branch at NASA GSFC providing scientific and programming support for projects studying chemical and dynamical aspects of the middle atmosphere, including: development of interactive 3D color graphical software for analysis and visualization of data; development of diagnostic software for analysis and interpretation of model output, satellite data and meteorological analysis; development of general user software to allow simple access to large central databases of satellite and atmospheric model data; system support for users of workstations; and representation at the committee for the mainframe computers. I worked extensively with SGI workstations, UNIX (Irix), IDL, Fortran, X-Windows, Cray and IBM mainframes, and UniTree. Three years developing mathematical and scientific applications programs for oceanic circulation problems involving algebraic and numerical finite difference models. Also developed objective analysis program to determine oceanic circulations from satellite altimetry data.


Research Assistant

Space Science and Engineering Center - University of Wisconsin - Madison

August 1981 - October 1983

Designed and conducted research on diurnal variation of convective tropical clouds, objectively using satellite data. Completed Master of Science thesis from this research.


Meteorological Technician

National Weather Service – Western Rgn Hdqtrs - Salt Lake City, Utah

June 1981 - August 1981

Designed and developed software for graphical display of model products. Compiled daily video loops of satellite data for NWS Forecast Office and Headquarters discussions. Periodically led Headquarters' map discussion and authored summary and forecast for distribution to entire Western Region.


Research Assistant

Atmospheric Science Research Center - State University of New York at Albany

September 1979 - May 1981

Assisted in design, execution, and analysis of research on tropospheric aerosols and the Antarctic. Developed Fortran programs for versatile statistical analysis of atmospheric sounding data.


Scientist III

Universities Space Research Association - NASA GSFC

May 2011 - Present

Member of Atmospheric Chemistry and Dynamics Branch at NASA Goddard Space Flight Center providing scientific and programming support for The GMI project studying chemical and transport aspects of the lower and middle atmosphere, including: development and adaptation of atmospheric and chemical modeling codes; development of diagnostic software for analysis and visualization of model output; system administration of over 20 Linux (Gentoo) workstations.

Education


M.S. 1983 Meteorology - University of Wisconsin – Madison

B.S. 1981 Atmospheric Science and Mathematics - State University of New York at Albany

 

Professional Societies


American Meteorological Society

1979 - Present


American Geophysical Union

1998 - Present

Publications


Refereed

Strahan, S. E., D. Smale, S. Solomon, et al. G. Taha, M. R. Damon, S. D. Steenrod, N. Jones, B. Liley, R. Querel, and J. Robinson. 2022. Unexpected Repartitioning of Stratospheric Inorganic Chlorine After the 2020 Australian Wildfires Geophysical Research Letters 49 (14): [10.1029/2022gl098290]

Thompson, C. R., S. C. Wofsy, M. J. Prather, et al. P. A. Newman, T. F. Hanisco, T. B. Ryerson, D. W. Fahey, E. C. Apel, C. A. Brock, W. H. Brune, K. Froyd, J. M. Katich, J. M. Nicely, J. Peischl, E. Ray, P. R. Veres, S. Wang, H. M. Allen, E. Asher, H. Bian, D. Blake, I. Bourgeois, J. Budney, T. P. Bui, A. Butler, P. Campuzano-Jost, C. Chang, M. Chin, R. Commane, G. Correa, J. D. Crounse, B. Daube, J. E. Dibb, J. P. DiGangi, G. S. Diskin, M. Dollner, J. W. Elkins, A. M. Fiore, C. M. Flynn, H. Guo, S. R. Hall, R. A. Hannun, A. Hills, E. J. Hintsa, A. Hodzic, R. S. Hornbrook, L. G. Huey, J. L. Jimenez, R. F. Keeling, M. J. Kim, A. Kupc, F. Lacey, L. R. Lait, J.-F. Lamarque, J. Liu, K. McKain, S. Meinardi, D. O. Miller, S. A. Montzka, F. L. Moore, E. J. Morgan, D. M. Murphy, L. T. Murray, B. A. Nault, J. A. Neuman, L. Nguyen, Y. Gonzalez, A. Rollins, K. Rosenlof, M. Sargent, G. Schill, J. P. Schwarz, J. M. Clair, S. D. Steenrod, B. B. Stephens, S. E. Strahan, S. A. Strode, C. Sweeney, A. B. Thames, K. Ullmann, N. Wagner, R. Weber, B. Weinzierl, P. O. Wennberg, C. J. Williamson, G. M. Wolfe, and L. Zeng. 2022. The NASA Atmospheric Tomography (ATom) Mission: Imaging the Chemistry of the Global Atmosphere Bulletin of the American Meteorological Society 103 (3): E761-E790 [10.1175/bams-d-20-0315.1]

Orbe, C., D. W. Waugh, S. Montzka, et al. E. J. Dlugokencky, S. Strahan, S. D. Steenrod, S. Strode, J. W. Elkins, B. Hall, C. Sweeney, E. J. Hintsa, F. L. Moore, and E. Penafiel. 2021. Tropospheric Age-of-Air: Influence of SF6 Emissions on Recent Surface Trends and Model Biases Journal of Geophysical Research: Atmospheres 126 (19): [10.1029/2021jd035451]

Guo, H., C. M. Flynn, M. J. Prather, et al. S. A. Strode, S. D. Steenrod, L. Emmons, F. Lacey, J.-F. Lamarque, A. M. Fiore, G. Correa, L. T. Murray, G. M. Wolfe, J. M. St. Clair, M. Kim, J. Crounse, G. Diskin, J. DiGangi, B. C. Daube, R. Commane, K. McKain, J. Peischl, T. B. Ryerson, C. Thompson, T. F. Hanisco, D. Blake, N. J. Blake, E. C. Apel, R. S. Hornbrook, J. W. Elkins, E. J. Hintsa, F. L. Moore, and S. Wofsy. 2021. Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements Atmospheric Chemistry and Physics 21 (18): 13729-13746 [10.5194/acp-21-13729-2021]

Kerr, G. H., D. W. Waugh, S. A. Strode, et al. S. D. Steenrod, L. D. Oman, and S. E. Strahan. 2019. Disentangling the Drivers of the Summertime Ozone‐Temperature Relationship Over the United States Journal of Geophysical Research: Atmospheres 124 (19): 10503-10524 [10.1029/2019jd030572]

Hall, S. R., K. Ullmann, M. J. Prather, et al. C. M. Flynn, L. T. Murray, A. M. Fiore, G. Correa, S. A. Strode, S. D. Steenrod, J.-F. Lamarque, J. Guth, B. Josse, J. Flemming, V. Huijnen, N. L. Abraham, and A. T. Archibald. 2018. Cloud impacts on photochemistry: building a climatology of photolysis rates from the Atmospheric Tomography mission Atmospheric Chemistry and Physics 18 (22): 16809--16828 [10.5194/acp-18-16809-2018]

Nicely, J. M., T. P. Canty, M. Manyin, et al. L. D. Oman, R. J. Salawitch, S. D. Steenrod, S. E. Strahan, and S. A. Strode. 2018. Changes in Global Tropospheric OH Expected as a Result of Climate Change Over the Last Several Decades Journal of Geophysical Research: Atmospheres 123 (18): 10,774-10,795 [10.1029/2018jd028388]

Prather, M. J., C. M. Flynn, X. Zhu, et al. S. D. Steenrod, S. A. Strode, A. M. Fiore, G. Correa, L. T. Murray, and J.-F. Lamarque. 2018. How well can global chemistry models calculate the reactivity of short-lived greenhouse gases in the remote troposphere, knowing the chemical composition Atmospheric Measurement Techniques 11 (5): 2653-2668 [10.5194/amt-11-2653-2018]

Bian, H., M. Chin, D. A. Hauglustaine, et al. M. Schulz, G. Myhre, S. E. Bauer, M. T. Lund, V. A. Karydis, T. L. Kucsera, X. Pan, A. Pozzer, R. B. Skeie, S. D. Steenrod, K. Sudo, K. Tsigaridis, A. P. Tsimpidi, and S. G. Tsyro. 2017. Investigation of global particulate nitrate from the AeroCom phase III experiment Atmospheric Chemistry and Physics 17 (21): 12911-12940 [10.5194/acp-17-12911-2017]

Prather, M. J., X. Zhu, C. M. Flynn, et al. S. A. Strode, J. M. Rodriguez, S. D. Steenrod, J. Liu, J.-F. Lamarque, A. M. Fiore, L. W. Horowitz, J. Mao, L. T. Murray, D. T. Shindell, and S. C. Wofsy. 2017. Global atmospheric chemistry – which air matters Atmospheric Chemistry and Physics 17 (14): 9081-9102 [10.5194/acp-17-9081-2017]

Choi, H.-D., H. Liu, J. H. Crawford, et al. D. B. Considine, D. J. Allen, B. N. Duncan, L. W. Horowitz, J. M. Rodriguez, S. E. Strahan, L. Zhang, X. Liu, M. R. Damon, and S. D. Steenrod. 2017. Global O3–CO correlations in a chemistry and transport model during July–August: evaluation with TES satellite observations and sensitivity to input meteorological data and emissions Atmospheric Chemistry and Physics 17 (13): 8429-8452 [10.5194/acp-17-8429-2017]

Liu, J., J. M. Rodriguez, S. D. Steenrod, et al. A. R. Douglass, J. A. Logan, M. A. Olsen, K. Wargan, and J. R. Ziemke. 2017. Causes of interannual variability over the southern hemispheric tropospheric ozone maximum Atmospheric Chemistry and Physics 17 (5): 3279-3299 [10.5194/acp-17-3279-2017]

Nicely, J. M., R. J. Salawitch, T. Canty, et al. D. C. Anderson, S. R. Arnold, M. P. Chipperfield, L. K. Emmons, J. Flemming, V. Huijnen, D. E. Kinnison, J.-F. Lamarque, J. Mao, S. A. Monks, S. D. Steenrod, S. Tilmes, and S. Turquety. 2017. Quantifying The Causes of Differences in Tropospheric OH within Global Models Journal of Geophysical Research: Atmospheres [10.1002/2016jd026239]

Strahan, S. E., A. R. Douglass, and S. D. Steenrod. 2016. Chemical and dynamical impacts of stratospheric sudden warmings on Arctic ozone variability Journal of Geophysical Research: Atmospheres 121 (19): 11,836-11,851 [10.1002/2016jd025128]

Orbe, C., D. W. Waugh, P. A. Newman, and S. Steenrod. 2016. The Transit-Time Distribution from the Northern Hemisphere Midlatitude Surface Journal of the Atmospheric Sciences 73 (10): 3785-3802 [10.1175/jas-d-15-0289.1]

Koffi, B., M. Schulz, F.-M. Bréon, et al. F. Dentener, B. M. Steensen, J. Griesfeller, D. Winker, Y. Balkanski, S. E. Bauer, N. Bellouin, T. Berntsen, H. Bian, M. Chin, T. Diehl, R. Easter, S. Ghan, D. A. Hauglustaine, T. Iversen, A. Kirkevåg, X. Liu, U. Lohmann, G. Myhre, P. Rasch, Ø. Seland, R. B. Skeie, S. D. Steenrod, P. Stier, J. Tackett, T. Takemura, K. Tsigaridis, M. R. Vuolo, J. Yoon, and K. Zhang. 2016. Evaluation of the aerosol vertical distribution in global aerosol models through comparison against CALIOP measurements: AeroCom phase II results J. Geophys. Res. Atmos. 121 (12): 7254-7283 [10.1002/2015jd024639]

Nicely, J. M., D. C. Anderson, T. P. Canty, et al. R. J. Salawitch, G. M. Wolfe, E. C. Apel, S. R. Arnold, E. L. Atlas, N. J. Blake, J. F. Bresch, T. L. Campos, R. R. Dickerson, B. Duncan, L. K. Emmons, M. J. Evans, R. P. Fernandez, J. Flemming, S. R. Hall, T. F. Hanisco, S. B. Honomichl, R. S. Hornbrook, V. Huijnen, L. Kaser, D. E. Kinnison, J.-F. Lamarque, J. Mao, S. A. Monks, D. D. Montzka, L. L. Pan, D. D. Riemer, A. Saiz-Lopez, S. D. Steenrod, M. H. Stell, S. Tilmes, S. Turquety, K. Ullmann, and A. J. Weinheimer. 2016. An observationally constrained evaluation of the oxidative capacity in the tropical western Pacific troposphere J. Geophys. Res. Atmos. 121 (12): 7461–7488 [10.1002/2016jd025067]

Liu, H., D. B. Considine, L. W. Horowitz, et al. J. H. Crawford, J. M. Rodriguez, S. E. Strahan, M. R. Damon, S. D. Steenrod, X. Xu, J. Kouatchou, C. Carouge, and R. M. Yantosca. 2016. Using beryllium-7 to assess cross-tropopause transport in global models Atmos. Chem. Phys. Discuss. 15 (18): 26131-26189 [10.5194/acp-16-4641-2016]

Liu, J., J. M. Rodriguez, A. M. Thompson, et al. J. A. Logan, A. R. Douglass, M. A. Olsen, S. D. Steenrod, and F. Posny. 2016. Origins of tropospheric ozone interannual variation over Réunion: A model investigation J. Geophys. Res. Atmos. 121 (1): 521 - 537 [10.1002/ 2015JD023981]

Strode, S. A., J. M. Rodriguez, J. A. Logan, et al. O. R. Cooper, J. C. Witte, L. N. Lamsal, M. R. Damon, B. H. Van Aartsen, S. D. Steenrod, and S. E. Strahan. 2015. Trends and variability in surface ozone over the United States Journal of Geophysical Research: Atmospheres 120 [10.1002/2014JD022784]

Raul, J.-C., L. K. Emmons, S. R. Arnold, et al. S. A. Monks, V. Huijnen, S. Tilmes, K. S. Law, J. L. Thomas, J.-C. Raut, I. Bouarar, S. Turquety, Y. Long, B. N. Duncan, S. D. Steenrod, S. A. Strode, J. Flemming, J. Mao, J. Langner, A. M. Thompson, D. Tarasick, E. C. Apel, D. R. Blake, R. C. Cohen, J. Dibb, G. S. Diskin, A. Fried, S. R. Hall, L. G. Huey, A. J. Weinheimer, A. Wisthaler, T. Mikoviny, J. Nowak, J. Pieschl, J. M. Roberts, T. Ryerson, C. Warneke, and D. Helmig. 2015. The POLARCAT Model Intercomparison Project (POLMIP): overview and evaluation with observations Atmos. Chem. Phys. 15 6721-6744 [10.5194/acp-15-6721-2015]

Prather, M. J., J. Hsu, N. M. DeLuca, et al. C. H. Jackman, L. D. Oman, A. R. Douglass, E. L. Fleming, S. E. Strahan, S. D. Steenrod, O. A. Søvde, I. S. Isaksen, L. Froidevaux, and B. Funke. 2015. Measuring and modeling the lifetime of nitrous oxide including its variability J. Geophys. Res. Atmos. 120 (11): 5693-5705 [10.1002/2015jd023267]

Huang, J., H. Liu, J. H. Crawford, et al. C. Chan, D. B. Considine, Y. Zhang, X. Zheng, C. Zhao, V. Thouret, S. J. Oltmans, S. C. Liu, D. B. Jones, S. D. Steenrod, and M. R. Damon. 2015. Origin of springtime ozone enhancements in the lower troposphere over Beijing: in situ measurements and model analysis Atmos. Chem. Phys. 15 (9): 5161-5179 [10.5194/acp-15-5161-2015]

Monks, S. A., S. R. Arnold, L. K. Emmons, et al. K. S. Law, S. Turquety, B. N. Duncan, J. Flemming, V. Huijnen, S. Tilmes, J. Langner, J. Mao, Y. Long, J. L. Thomas, S. D. Steenrod, J. C. Raut, C. Wilson, M. P. Chipperfield, G. S. Diskin, A. Weinheimer, H. Schlager, and G. Ancellet. 2015. Multi-model study of chemical and physical controls on transport of anthropogenic and biomass burning pollution to the Arctic Atmos. Chem. Phys. 15 (6): 3575-3603 [10.5194/acp-15-3575-2015]

Arnold, S. R., L. K. Emmons, S. A. Monks, et al. K. S. Law, D. A. Ridley, S. Turquety, S. Tilmes, J. L. Thomas, I. Bouarar, J. Flemming, V. Huijnen, J. Mao, B. N. Duncan, S. Steenrod, Y. Yoshida, J. Langner, and Y. Long. 2015. Biomass burning influence on high-latitude tropospheric ozone and reactive nitrogen in summer 2008: a multi-model analysis based on POLMIP simulations Atmos. Chem. Phys. 15 (11): 6047-6068 [10.5194/acp-15-6047-2015]

Strahan, S. E., A. R. Douglass, P. A. Newman, and S. D. Steenrod. 2014. Inorganic chlorine variability in the Antarctic vortex and implications for ozone recovery J. Geophys. Res. Atmos. 119 (24): 14,098-14,109 [10.1002/2014jd022295]

Tsigaridis, K., N. Daskalakis, M. Kanakidou, et al. P. J. Adams, P. Artaxo, R. Bahadur, Y. Balkanski, S. E. Bauer, N. Bellouin, A. Benedetti, T. Bergman, T. K. Berntsen, J. P. Beukes, H. Bian, K. S. Carslaw, M. Chin, G. Curci, T. Diehl, R. C. Easter, S. J. Ghan, S. L. Gong, A. Hodzic, C. R. Hoyle, T. Iversen, S. Jathar, J. L. Jimenez, J. W. Kaiser, A. Kirkevåg, D. Koch, H. Kokkola, Y. H. Lee, G. Lin, X. Liu, G. Luo, X. Ma, G. W. Mann, N. Mihalopoulos, J.-J. Morcrette, J.-F. Müller, G. Myhre, S. Myriokefalitakis, S. Ng, D. O'Donnell, J. E. Penner, L. Pozzoli, K. J. Pringle, L. M. Russell, M. Schulz, J. Sciare, O. Seland, D. T. Shindell, S. Sillman, R. B. Skeie, D. Spracklen, T. Stavrakou, S. D. Steenrod, T. Takemura, P. Tiitta, S. Tilmes, H. Tost, T. van Noije, P. G. van Zyl, K. von Salzen, F. Yu, Z. Wang, Z. Wang, R. A. Zaveri, H. Zhang, K. Zhang, Q. Zhang, and X. Zhang. 2014. The AeroCom evaluation and intercomparison of organic aerosol in global models Atmos. Chem. Phys. 14 10845-10895 [doi:10.5194/acp-14-10845-2014]

Jiao, C., M. G. Flanner, Y. Balkanski, et al. S. E. Bauer, N. Bellouin, T. K. Berntsen, H. Bian, K. S. Carslaw, M. Chin, N. De Luca, T. Diehl, S. J. Ghan, T. Iversen, A. Kirkevag, D. Koch, X. Liu, G. W. Mann, J. E. Penner, G. Pitari, M. Schulz, O. Seland, R. B. Skeie, S. D. Steenrod, P. Stier, T. Takemura, K. Tsigaridis, T. van Noije, Y. Yun, and K. Zhang. 2014. An AeroCom assessment of black carbon in Arctic snow and sea ice Atmos. Chem. Phys. 14 (5): 2399-2417 [10.5194/acp-14-2399-2014]

Strahan, S., S. Steenrod, and M. Schoeberl. 2009. The impact of tropical recirculation on polar composition Atmos. Chem. Phys. 9 (7): 2471-2480 [10.5194/acp-9-2471-2009]

Prather, M., X. Zhu, S. Strahan, S. Steenrod, and J. M. Rodriguez. 2008. Quantifying errors in trace species transport modeling Proceedings of the National Academy of Sciences 105 (50): 19,617-19,621 [10.1073/pnas.0806541106]

Duncan, B., S. Strahan, Y. Yoshida, S. Steenrod, and N. Livesey. 2007. Model study of the cross-tropopause transport of biomass burning pollution Atmos Chem Phys 7 3713-3736

Stolarski, R. S., A. R. Douglass, S. Steenrod, and S. Pawson. 2006. Trends in Stratospheric Ozone: Lessons Learned from a 3D Chemical Transport Model J. Atmos. Sci. 63 (3): 1028-1041 [10.1175/JAS3650.1]

Stolarski, R., A. Douglass, S. Steenrod, and S. Pawson. 2006. Trends in stratospheric ozone: Lessons learned from a 3-D chemical transport model J Atmos Sc 63 1028-1041

Douglass, A. R., R. B. Rood, J. Waters, et al. L. Froidevaux, W. Read, L. Elson, M. Geller, Y. Chi, M. Cerniglia, and S. Steenrod. 1993. A 3D Simulation of the Early Winter Distribution of Reactive Chlorine in the North Polar Vortex Geophys. Res. Lett. 20 (12): 1271-1274 [10.1029/93GL01586]

Rood, R. B., J. A. Kaye, A. R. Douglass, et al. D. J. Allen, S. Steenrod, and E. Larson. 1990. Wintertime Nitric Acid Chemistry: Implications from Three Dimensional Model Calculations Journal of the Atmospheric Sciences 47 (22): 2696-2709 [0.1175/1520-0469(1990)047]

Sanchez, B. V., D. B. Rao, and S. D. Steenrod. 1986. Tidal estimation in the Atlantic and Indian Oceans Marine Geodesy 10 (3-4): 309-350 [10.1080/01490418609388028]