Changwoo Ahn

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Changwoo Ahn

  • SENIOR SCIENTIST
  • 301.867.2171 | 301.867.2151
  • NASA/GSFC
  • Mail Code: 614
  • LANHAM , MD 20706
  • 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]

    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]

                                                                                                                                                                                            
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