Sciences and Exploration Directorate

Changwoo Ahn

(SENIOR SCIENTIST)

 changwoo.ahn@nasa.gov

Org Code: 614

NASA/GSFC
Mail Code: 614
Greenbelt, MD 20771

Employer: SCIENCE SYSTEMS AND APPLICATIONS INC

Publications


Refereed

Ahn, C., O. Torres, H. Jethva, R. Tiruchirapalli, and L. Huang. 2021. Evaluation of Aerosol Properties Observed by DSCOVR/EPIC Instrument From the Earth‐Sun Lagrange 1 Orbit Journal of Geophysical Research: Atmospheres 126 (12): [10.1029/2020jd033651]

Torres, O., H. Jethva, C. Ahn, G. Jaross, and D. G. Loyola. 2020. TROPOMI aerosol products: evaluation and observations of synoptic-scale carbonaceous aerosol plumes during 2018–2020 Atmospheric Measurement Techniques 13 (12): 6789-6806 [10.5194/amt-13-6789-2020]

Torres, O., P. Bhartia, G. Taha, et al. H. Jethva, S. Das, P. Colarco, N. Krotkov, A. Omar, and C. Ahn. 2020. Stratospheric Injection of Massive Smoke Plume from Canadian Boreal Fires in 2017 as seen by DSCOVR‐EPIC, CALIOP and OMPS‐LP Observations Journal of Geophysical Research: Atmospheres [10.1029/2020jd032579]

Jung, Y., G. González Abad, C. R. Nowlan, et al. K. Chance, X. Liu, O. Torres, and C. Ahn. 2019. Explicit Aerosol Correction of OMI Formaldehyde Retrievals Earth and Space Science 6 (11): 2087-2105 [10.1029/2019ea000702]

Jethva, H., O. Torres, and C. Ahn. 2018. A 12-year long global record of optical depth of absorbing aerosols above the clouds derived from the OMI/OMACA algorithm Atmospheric Measurement Techniques 11 (10): 5837-5864 [10.5194/amt-11-5837-2018]

Torres, O., P. K. Bhartia, H. Jethva, and C. Ahn. 2018. Impact of the ozone monitoring instrument row anomaly on the long-term record of aerosol products Atmospheric Measurement Techniques 11 (5): 2701-2715 [10.5194/amt-11-2701-2018]

Colarco, P. R., S. Gassó, C. Ahn, et al. V. Buchard, A. M. da Silva, and O. Torres. 2017. Simulation of the Ozone Monitoring Instrument aerosol index using the NASA Goddard Earth Observing System aerosol reanalysis products Atmospheric Measurement Techniques 10 (11): 4121-4134 [10.5194/amt-10-4121-2017]

Jeong, U., J. Kim, C. Ahn, et al. O. Torres, X. Liu, P. K. Bhartia, R. J. Spurr, D. Haffner, K. Chance, and B. N. Holben. 2016. An optimal-estimation-based aerosol retrieval algorithm using OMI near-UV observations Atmospheric Chemistry and Physics 16 (1): 177-193 [10.5194/acp-16-177-2016]

Zhang, L., D. K. Henze, G. A. Grell, et al. G. R. Carmichael, N. Bousserez, Q. Zhang, O. Torres, C. Ahn, Z. Lu, J. Cao, and Y. Mao. 2015. Constraining black carbon aerosol over Asia using OMI aerosol absorption optical depth and the adjoint of GEOS-Chem Atmos. Chem. Phys. 15 (18): 10281-10308 [10.5194/acp-15-10281-2015]

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]

Chen, Z., O. Torres, M. McCormick, W. Smith, and C. Ahn. 2012. Comparative study of aerosol and cloud detected by CALIPSO and OMI Atmos Environ 51 187-195 [10.1016/j.atmosenv.2012.01.024]

Torres, O., Z. Chen, H. T. Jethva, et al. C. Ahn, S. Freitas, and P. K. Bhartia. 2010. OMI and MODIS observations of the anomalous 2008–2009 Southern Hemisphere biomass burning seasons Atmos. Chem. Phys. 10 (8): 3505-3513 [10.5194/acp-10-3505-2010]

Non-Refereed

Jethva, H. T., O. Torres, and C. Ahn. 2016. A ten-year global record of absorbing aerosols above clouds from OMI's near-UV observations Remote Sensing of the Atmosphere, Clouds, and Precipitation VI [10.1117/12.2225765]