Dr. Pawan K Bhartia

Dr. Pawan K Bhartia

  • 301.614.5731 | 301.614.5903
  • NASA/GSFC
  • Mail Code: 614
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Dr. Bhartia is an internationally known expert on ultraviolet remote sensing of Earth from space. He developed the algorithms that have been used to produce ozone data from SBUV and TOMS series of instruments, and is a co-developer of the TOMS aerosol retrieval algorithm that produces unique daily global maps of smoke and dust, and can directly measure aerosol absorption from space. Algorithms and calibration techniques developed under Dr. Bhartia’s direction have been adapted by groups around the world to process data from advanced hyperspectral instruments on US and European satellites, including the OMI instrument currently flying on the EOS Aura satellite, and the OMPS instrument suite on the Suomi NPP satellite. He is currently serving as the OMPS-LP  Sensor Team Lead.

    Positions/Employment

    10/1991 - Present

    Senior Research Scientist

    NASA , Mail Code 614, Goddard Space Flight Center Greenbelt, Maryland USA 20771

    Education

    Ph. D, Physics, Purdue University, W. Lafayette, IN (1977)
    MS, Computer Science, Purdue University, W. Lafayette, IN (1977)


    Awards

    2016- Robert H. Goddard Award of Merit, NASA GSFC
    2014 - Remote Sensing Prize, AMS
    2013 - Distinguished Service Medal, NASA
    2012- Yoram J. Kaufman Award, AGU, Atm. Sciences Section
    2006 - William T. Pecora Team Award, NASA & Dept of Interior
    2004 - Outstanding Leadership Medal, NASA
    2003 – William Nordberg Medal, NASA GSFC
    1997 – Exceptional Scientific Achievement Award, NASA GSFC

    Publications

    Refereed

    Chen, Z., P. K. Bhartia, R. Loughman, P. Colarco, and M. DeLand. 2018. "Improvement of stratospheric aerosol extinction retrieval from OMPS/LP using a new aerosol model." Atmospheric Measurement Techniques, 11 (12): 6495-6509 [10.5194/amt-11-6495-2018]

    Vasilkov, A., E.-S. Yang, S. Marchenko, et al. W. Qin, L. Lamsal, J. Joiner, N. Krotkov, D. Haffner, P. K. Bhartia, and R. Spurr. 2018. "A cloud algorithm based on the O2-O2 477 nm absorption band featuring an advanced spectral fitting method and the use of surface geometry-dependent Lambertian-equivalent reflectivity." Atmospheric Measurement Techniques, 11 (7): 4093-4107 [10.5194/amt-11-4093-2018]

    Kramarova, N. A., P. K. Bhartia, G. Jaross, et al. L. Moy, P. Xu, Z. Chen, M. DeLand, L. Froidevaux, N. Livesey, D. Degenstein, A. Bourassa, K. A. Walker, and P. Sheese. 2018. "Validation of ozone profile retrievals derived from the OMPS LP version 2.5 algorithm against correlative satellite measurements." Atmospheric Measurement Techniques, 11 (5): 2837-2861 [10.5194/amt-11-2837-2018]

    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]

    Ziemke, J. R., S. A. Strode, A. R. Douglass, et al. J. Joiner, A. Vasilkov, L. D. Oman, J. Liu, S. E. Strahan, P. K. Bhartia, and D. P. Haffner. 2017. "A cloud-ozone data product from Aura OMI and MLS satellite measurements." Atmospheric Measurement Techniques, 10 (11): 4067-4078 [10.5194/amt-10-4067-2017]

    Sofieva, V. F., E. Kyrölä, M. Laine, et al. J. Tamminen, D. Degenstein, A. Bourassa, C. Roth, D. Zawada, M. Weber, A. Rozanov, N. Rahpoe, G. Stiller, A. Laeng, T. von Clarmann, K. A. Walker, P. Sheese, D. Hubert, M. van Roozendael, C. Zehner, R. Damadeo, J. Zawodny, N. Kramarova, and P. K. Bhartia. 2017. "Merged SAGE II, Ozone_cci and OMPS ozone profiles dataset and evaluation of ozone trends in the stratosphere." Atmospheric Chemistry and Physics, 17: 12533-12552 [10.5194/acp-17-12533-2017]

    Steinbrecht, W., L. Froidevaux, R. Fuller, et al. R. Wang, J. Anderson, C. Roth, A. Bourassa, D. Degenstein, R. Damadeo, J. Zawodny, S. Frith, R. McPeters, P. Bhartia, J. Wild, C. Long, S. Davis, K. Rosenlof, V. Sofieva, K. Walker, N. Rahpoe, A. Rozanov, M. Weber, A. Laeng, T. von Clarmann, G. Stiller, N. Kramarova, S. Godin-Beekmann, T. Leblanc, R. Querel, D. Swart, I. Boyd, K. Hocke, N. Kämpfer, E. Maillard Barras, L. Moreira, G. Nedoluha, C. Vigouroux, T. Blumenstock, M. Schneider, O. Garcìa, N. Jones, E. Mahieu, D. Smale, M. Kotkamp, J. Robinson, I. Petropavlovskikh, N. Harris, B. Hassler, D. Hubert, and F. Tummon. 2017. "An update on ozone profile trends for the period 2000 to 2016." Atmospheric Chemistry and Physics, 1-16 [10.5194/acp-17-10675-2017]

    Moy, L., P. K. Bhartia, G. Jaross, et al. R. Loughman, N. Kramarova, Z. Chen, G. Taha, G. Chen, and P. Xu. 2017. "Altitude registration of limb-scattered radiation." Atmospheric Measurement Techniques, 10 (1): 167-178 [10.5194/amt-10-167-2017]

    Gupta, P., J. Joiner, A. Vasilkov, and P. K. Bhartia. 2016. "Top-of-the-atmosphere shortwave flux estimation from satellite observations: an empirical neural network approach applied with data from the A-train constellation." Atmospheric Measurement Techniques, 9 (7): 2813-2826 [10.5194/amt-9-2813-2016]

    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]

    Harris, N. R., B. Hassler, F. Tummon, et al. G. E. Bodeker, D. Hubert, I. Petropavlovskikh, W. Steinbrecht, J. Anderson, P. K. Bhartia, C. D. Boone, A. Bourassa, S. M. Davis, D. Degenstein, A. Delcloo, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, N. Jones, M. J. Kurylo, E. Kyrölä, M. Laine, S. T. Leblanc, J.-C. Lambert, B. Liley, E. Mahieu, A. Maycock, M. de Mazière, A. Parrish, R. Querel, K. H. Rosenlof, C. Roth, C. Sioris, J. Staehelin, R. S. Stolarski, R. Stübi, J. Tamminen, C. Vigouroux, K. A. Walker, H. J. Wang, J. Wild, and J. M. Zawodny. 2015. "Past changes in the vertical distribution of ozone – Part 3: Analysis and interpretation of trends." Atmos. Chem. Phys., 15 (17): 9965-9982 [10.5194/acp-15-9965-2015]

    Labow, G. J., J. R. Ziemke, R. D. McPeters, D. P. Haffner, and P. K. Bhartia. 2015. "A total ozone-dependent ozone profile climatology based on ozonesondes and Aura MLS data." J. Geophys. Res. Atmos., 120 (6): 2537-2545 [10.1002/2014jd022634]

    Loughman, R., D. Flittner, E. Nyaku, and P. K. Bhartia. 2015. "Gauss–Seidel limb scattering (GSLS) radiative transfer model development in support of the Ozone Mapping and Profiler Suite (OMPS) limb profiler mission." Atmos. Chem. Phys., 15 (6): 3007-3020 [10.5194/acp-15-3007-2015]

    Frith, S. M., N. A. Kramarova, R. S. Stolarski, et al. R. D. Mc Peters, P. K. Bhartia, and G. J. Labow. 2014. "Recent changes in total column ozone based on the SBUV Version 8.6 Merged Ozone Data Set." J. Geophys. Res. Atmos., 119 (16): 9735–9751 [10.1002/2014JD021889]

    Jaross, G. R., P. K. Bhartia, G. Chen, et al. M. E. Kowitt, M. E. Haken, Z. Chen, Q. Xu, J. A. Warner, and T. J. Kelly. 2014. "OMPS Limb Profiler instrument performance assessment." J. Geophys. Res. Atmos., 119 (7): 4399-4412 [10.1002/2013JD020482]

    Hassler, B., I. Petropavlovskikh, J. Staehelin, et al. T. August, P. K. Bhartia, C. Clerbaux, D. Degenstein, M. De Mazière, B. M. Dinelli, A. Dudhia, G. Dufou, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, J. Granville, N. P. Harris, K. Hoppel, D. Hubert, Y. Kasai, M. J. Kurylo, E. Kyrölä, J.-C. Lambert, P. F. Levelt, C. T. McElroy, R. D. McPeters, R. Munro, H. Nakajima, A. Parrish, P. Raspollini, E. E. Remsberg, K. H. Rosenlof, A. Rozanov, T. Sano, Y. Sasano, M. Shiotani, H. J. Smit, G. Stiller, J. Tamminen, D. W. Tarasick, J. Urban, R. J. van der A, J. P. Veefkind, C. Vigouroux, T. von Clarmann, C. von Savigny, K. A. Walker, M. Weber, J. Wild, and J. M. Zawodny. 2014. "Past changes in the vertical distribution of ozone - Part 1: Measurement techniques, uncertainties and availability." Atmos. Meas. Tech., 7: 1395-1427 [10.5194/amt-7-1395-2014]

    Parrish, A., I. S. Boyd, G. E. Nedoluha, et al. P. K. Bhartia, S. M. Frith, N. A. Kramarova, B. J. Connor, G. E. Bodeker, L. Froidevaux, M. Shiotani, and T. Sakazaki. 2014. "Diurnal variations of stratospheric ozone measured by ground-based microwave remote sensing at the Mauna Loa NDACC site: measurement validation and GEOSCCM model comparison." Atmos. Chem. Phys., 14: 7255-7272 [10.5194/acp-14-7255-2014]

    Chiou, E. W., P. K. Bhartia, R. D. Mc Peters, et al. D. G. Loyola, M. Coldewey-Egbers, V. E. Fioletov, M. van Roozendael, R. Spurr, C. Lerot, and S. M. Frith. 2014. "Comparison of profile total ozone from SBUV (v8.6) with GOME-type and ground-based total ozone for a 16-year period (1996 to 2011)." Atmos. Meas. Tech., 7: 1681-1692 [10.5194/amt-7-1681-2014]

    Kramarova, N. A., E. R. Nash, P. A. Newman, et al. P. K. Bhartia, R. D. McPeters, D. F. Rault, C. J. Seftor, P. Q. Xu, and G. J. Labow. 2014. "Measuring the Antarctic ozone hole with the new Ozone Mapping and Profiler Suite (OMPS)." Atmos. Chem. Phys., 14 (5): 2353-2361 [10.5194/acp-14-2353-2014]

    Ziemke, J. R., M. A. Olsen, J. C. Witte, et al. A. R. Douglass, S. E. Strahan, K. Wargan, X. Liu, M. Schoeberl, K. Yang, T. Kaplan, S. Pawson, B. N. Duncan, P. Newman, P. K. Bhartia, and M. K. Heney. 2014. "Assessment and applications of NASA ozone data products derived from Aura OMI/MLS satellite measurements in context of the GMI chemical transport model." J. Geophys. Res. Atmos., 119 (9): 5671-5699 [10.1002/2013JD020914]

    Li, C., J. Joiner, N. A. Krotkov, and P. K. Bhartia. 2013. "A fast and sensitive new satellite SO2 retrieval algorithm based on principal component analysis: Application to the ozone monitoring instrument." Geophysical Research Letters, 40 (23): 6314-6318 [10.1002/2013gl058134]

    Kramarova, N. A., S. M. Frith, P. K. Bhartia, et al. R. D. McPeters, S. L. Taylor, B. L. Fisher, G. J. Labow, and M. T. Deland. 2013. "Validation of ozone monthly zonal mean profiles obtained from the version 8.6 Solar Backscatter Ultraviolet algorithm." Atmos. Chem. Phys., 13 (14): 6887-6905 [10.5194/acp-13-6887-2013]

    Bucsela, E. J., N. A. Krotkov, L. N. Lamsal, et al. W. H. Swartz, P. K. Bhartia, K. F. Boersma, J. P. Veefkind, J. F. Gleason, and K. E. Pickering. 2013. "A new stratospheric and tropospheric NO2 retrieval algorithm for nadir-viewing satellite instruments: applications to OMI." Atmospheric Measurement Techniques, 6 (10): 2607-2626 [10.5194/amt-6-2607-2013]

    Bhartia, P. K., R. D. Mc Peters, L. E. Flynn, et al. S. L. Taylor, N. A. Kramarova, S. M. Frith, B. L. Fisher, and M. T. Deland. 2013. "Solar Backscatter UV (SBUV) total ozone and profile algorithm." Atmos. Meas. Tech., 6 (10): 2533-2548 [10.5194/amt-6-2533-2013]

    Kramarova, N. A., P. K. Bhartia, S. M. Frith, R. D. Mc Peters, and R. S. Stolarski. 2013. "Interpreting SBUV smoothing errors: an example using the quasi-biennial oscillation." Atmos. Meas. Tech., 6 (8): 2089-2099 [10.5194/amt-6-2089-2013]

    Mc Peters, R. D., P. K. Bhartia, D. P. Haffner, G. J. Labow, and L. Flynn. 2013. "The version 8.6 SBUV ozone data record: An overview." J. Geophys. Res. Atmos., 118 (14): 8032–8039 [10.1002/jgrd.50597]

    Labow, G. J., R. D. Mc Peters, P. K. Bhartia, and N. A. Kramarova. 2013. "A comparison of 40 years of SBUV measurements of column ozone with data from the Dobson/Brewer network." J. Geophys. Res. Atmos., 118 (13): 7370-7378 [10.1002/jgrd.50503]

    Joiner, J., A. P. Vasilkov, P. Gupta, et al. P. K. Bhartia, P. Veefkind, M. Sneep, J. D. Haan, I. Polonsky, and R. Spurr. 2012. "Fast simulators for satellite cloud optical centroid pressure retrievals; evaluation of OMI cloud retrievals." Atmospheric Measurement Techniques, 5 (3): 529-545 [Full Text (Link)] [10.5194/amt-5-529-2012]

    Torres, O., H. T. Jethva, and P. K. Bhartia. 2012. "Retrieval of Aerosol Optical Depth above Clouds from OMI Observations: Sensitivity Analysis and Case Studies." Journal of the Atmospheric Sciences, 69 (3): 1037-1053 [10.1175/JAS-D-11-0130.1]

    Ziemke, J. R., S. Chandra, G. Labow, et al. P. K. Bhartia, L. Froidevaux, and J. C. Witte. 2011. "A global climatology of tropospheric and stratospheric ozone derived from Aura OMI and MLS measurements." Atmos. Chem. Phys., 11 (17): 9237-9251 [10.5194/acp-11-9237-2011]

    Salawitch, R. J., T. Canty, T. Kurosu, et al. K. Chance, Q. Liang, A. M. Da Silva, S. Pawson, J. E. Nielsen, J. M. Rodriguez, and P. K. Bhartia. 2010. "A new interpretation of total column BrO during Arctic spring." Geophysical Research Letters, 37 (21): L21805 [10.1029/2010GL043798]

    Yang, K., X. Liu, P. K. Bhartia, et al. N. A. Krotkov, S. A. Carn, E. J. Hughes, A. J. Krueger, R. J. Spurr, and S. G. Trahan. 2010. "Direct retrieval of sulfur dioxide amount and altitude from spaceborne hyperspectral UV measurements: Theory and application." Journal of Geophysical Research, 115: D00L09 [10.1029/2010jd013982]

    Yang, Q., D. M. Cunnold, Y. Choi, et al. Y. Wang, L. Froidevaux, A. M. Thompson, and P. K. Bhartia. 2010. "A study of tropospheric ozone column enhancements over North America using satellite data and a global chemical model." J. Geophys. Res., 115: D08302 [doi: 10.1029/2009JD012616]

    Joiner, J., A. Vasilkov, P. K. Bhartia, et al. G. Wind, S. E. Platnick, and W. Menzel. 2010. "Detection of multi-layer and vertically-extended clouds using A-train sensors." Atmos Meas Tech, 3 (1): 233-247 [10.5194/amt-3-233-2010]

    Vasilkov, A., J. Joiner, D. P. Haffner, P. Bhartia, and R. Spurr. 2010. "What do satellite backscatter ultraviolet and visible spectrometers see over snow and ice? A study of clouds and ozone using the A-train." Atmos Meas Tech, 3 (3): 619-629 [10.5194/amt-3-619-2010]

    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]

    Ziemke, J. R., S. Chandra, L. D. Oman, and P. K. Bhartia. 2010. "A new ENSO index derived from satellite measurements of column ozone." Atmos Chem Phys , 10: 3711-3721 [10.5194/acp-10-3711-2010]

    Huang, F., R. D. McPeters, P. K. Bhartia, et al. H. Mayr, S. Frith, J. M. Russell, and M. Mlynczak. 2010. "Temperature diurnal variations (migrating tides) in the stratosphere and lower mesosphere based on measurements from SABER on TIMED." J Geophys Res, 115 (D16): D16121 [10.1029/2009JD013698]

    Pierce, R. B., J. A. Al-Saadi, C. Kittaka, et al. T. Schaak, A. Lenzen, K. W. Bowman, J. Szykman, A. Soja, T. Ryerson, A. M. Thompson, and P. K. Bhartia. 2009. "Impacts of Background Ozone Production on Houston and Dallas, TX, Air Quality during the TEXAQS Field Mission." J. Geophys. Res.-Atmos., 114: D00F09 [doi:10.1029/2008JD011337]

    Ziemke, J. R., J. Joiner, S. Chandra, et al. P. K. Bhartia, A. Vasilkov, D. P. Haffner, K. Yang, M. Schoeberl, L. Froidevaux, and P. Levelt. 2009. "Ozone mixing ratios inside tropical deep convective clouds from OMI satellite measurements." Atmos Chem Phys, 9: 573-583.

    Yang, K., P. F. Levelt, P. K. Bhartia, et al. S. A. Carn, A. J. Krueger, and N. A. Krotkov. 2009. "Improving retrieval of volcanic sulfur dioxide from backscattered UV satellite observations." Geophysical Research Letters, 36 (3): L03102 [10.1029/2008GL036036]

    Ziemke, J. R., S. Chandra, B. N. Duncan, et al. M. R. Schoeberl, M. R. Damon, O. Torres, and P. K. Bhartia. 2009. "Recent biomass burning in the tropics and related changes in tropospheric ozone." Geophysical Research Letters, 36 (15): L15819 [10.1029/2009GL039303]

    Ahn, C., O. Torres, and P. K. Bhartia. 2008. "Comparison of Ozone Monitoring Instrument UV Aerosol Products with Aqua/Moderate Resolution Imaging Spectroradiometer and Multiangle Imaging Spectroradiometer observations in 2006." J Geophy Res, 113 (D16S27): [10.1029/2007JD008832]

    Krotkov, N. A., B. McClure, R. R. Dickerson, et al. S. A. Carn, C. Li, P. K. Bhartia, K. Yang, A. J. Krueger, Z. Li, P. F. Levelt, H. Chen, P. Wang, and D. Lu. 2008. "Validation of SO2 retrievals from the Ozone Monitoring Instrument over NE China." J Geophys Res, 113 (D16S40, doi:101029/):

    McPeters, R. D., M. Kroon, G. Labow, et al. E. Brinksma, D. Balis, I. Petropavtovskikh, J. P. Veefkind, P. K. Bhartia, and P. F. Levelt. 2008. "Validation of the Aura Ozone Monitoring Instrument total column ozone product." J Geopohys Res, 113 (D15S14, doi:101029/):

    Vasilkov, A. P., J. Joiner, R. Spurr, et al. P. K. Bhartia, P. F. Levelt, and G. Stephens. 2008. "Evaluation of the OMI cloud pressures derived from rotational Raman scattering by comparisons with other satellite data and radiative transfer simulations." J. Geophys. Res., 113 (D15): D15S19 [10.1029/2007JD008689]

    Schoeberl, M. R., J. R. Ziemke, B. Bojkov, et al. N. Livesey, B. Duncan, S. Strahan, L. Froidevaux, S. Kulawik, P. K. Bhartia, S. Chandra, P. F. Levelt, J. C. Witte, A. M. Thompson, E. Cuevas, A. Redondas, D. W. Tarasick, J. Davies, G. Bodeker, G. Hansen, B. J. Johnson, S. J. Oltmans, H. Vömel, M. Allaart, H. Kelder, M. Newchurch, S. Godin-Beekmann, G. Ancellet, H. Claude, S. B. Andersen, E. Kyrö, M. Parrondos, M. Yela, G. Zablocki, D. Moore, H. Dier, P. von der Gathen, P. Viatte, R. Stübi, B. Calpini, P. Skrivankova, V. Dorokhov, H. de Backer, F. J. Schmidlin, G. Coetzee, M. Fujiwara, V. Thouret, F. Posny, G. Morris, J. Merrill, C. P. Leong, G. Koenig-Langlo, and E. Joseph. 2007. "A trajectory-based estimate of the tropospheric ozone column using the residual method." Journal of Geophysical Research, 112 (D24): D24S49 [10.1029/2007jd008773]

    Yang, K., N. A. Krotkov, A. J. Krueger, et al. S. A. Carn, P. K. Bhartia, and P. F. Levelt. 2007. "Retrieval of large volcanic SO 2 columns from the Aura Ozone Monitoring Instrument: Comparison and limitations." Journal of Geophysical Research, 112 (D24): D24S43 [10.1029/2007jd008825]

    Chandra, S., J. Ziemke, M. Schoeberl, et al. L. Froidevaux, W. Read, P. Levelt, and P. K. Bhartia. 2007. "Effects of the 2004 El Niño on tropospheric ozone and water vapor." Geophy Res Lett, 34 (6): L06802 [10.1029/2006GL028779]

    Torres, O., A. Tanskanen, B. Veihelman, et al. C. Ahn, R. Braak, P. K. Bhartia, P. Veefkind, and P. Levelt. 2007. "Aerosols and Surface UV Products from OMI Observations: An Overview." J. Geophys. Res., 112 (D24): D24S47 [10.1029/2007JD008809]

    Ziemke, J. R., S. Chandra, M. R. Schoeberl, et al. L. Froidevaux, W. G. Read, P. F. Levelt, and P. K. Bhartia. 2007. "Intra-seasonal variability in tropospheric ozone and water vapor in the tropics." GeopHy Res Lett, 34 (L17804, doi:101029/):

    Krotkov, N. A., S. Carn, A. J. Krueger, P. K. Bhartia, and K. Yang. 2006. "Band Residual Difference Algorithm for Retrieval of SO2 from the Aura Ozone Monitoring Instrument (OMI)." IEEE Transactions on Geoscience and Remote Sensing, 44 (5): 1259-1266 [10.1109/TGRS.2005.861932]

    Steinbrecht, W., H. Claude, F. Schonenborn, et al. I. McDermid, T. Leblanc, S. Godin, T. Song, D. P. Swart, Y. Meijer, G. Bodeker, B. Connor, N. Kampfer, K. Hocke, Y. Calisesi, N. Schneider, J. de la Noe, A. Parrish, I. Boyd, C. Bruhl, B. Steil, M. Giorgetta, E. Manzini, L. Thomason, J. Zawodny, M. McCormick, J. M. Russell, P. K. Bhartia, R. Stolarski, and S. Hollandsworth-Frith. 2006. "Long-term evolution of upper stratospheric ozone at selected stations of the network for the detection of stratospheric change (NDSC)." J Geophys Res, 111: D10308.

    Schoeberl, M., A. Douglass, E. Hilsenrath, et al. P. K. Bhartia, R. Beer, J. Waters, M. Gunson, L. Froidevaux, J. Gille, J. Barnett, P. Levelt, and P. DeCola. 2006. "Overview of the EOS Aura Mission." IEEE Trans on Geosc And Remote Sensing, 44 (5): IGRSD2 1066-1074.

    Levelt, P., E. Hilsenrath, G. Leppelmeier, et al. G. H. van den Oord, P. K. Bhartia, J. Tamminen, J. F. de Haan, and J. Veefkind. 2006. "Science objectives of the Ozone Monitoring Instrument." IEEE Trans on Geosc And Remote Sensing, 44 (5): IGRSD2 1199-1208.

    Ziemke, J., S. Chandra, B. Duncan, et al. L. Froidevaux, P. K. Bhartia, P. Levelt, and J. Waters. 2006. "Tropospheric ozone determined from Aura OMI and MLS: Evaluation of measurements and comparison with the Global Modeling Initiative's Chemical Transport Model." J. Geophys. Res., 111 (D19): D19303 [10.1029/2006JD007089]

    Joiner, J., A. P. Vasilkov, K. Yang, and P. K. Bhartia. 2006. "Observations over hurricanes from the ozone monitoring instrument." Geophysical Research Letters, 33 (6): L06807 [10.1029/2005GL025592]

    Krotkov, N. A., P. K. Bhartia, J. R. Herman, et al. J. Slusser, G. J. Labow, G. Scott, G. Janson, T. F. Eck, and B. N. Holben. 2005. "Aerosol ultraviolet absorption experiment (2002 to 2004), part 1: ultraviolet multifilter rotating shadowband radiometer calibration and intercomparison with CIMEL sunphotometers." Opt Eng, 44 (4): 041004-1 - 041004-17 [10.1117/1.1886818]

    Torres, O., P. K. Bhartia, A. Syniuk, E. J. Welton, and B. N. Holben. 2005. "Total Ozone Mapping Spectrometer measurements of aerosol absorption from space: Comparison to SAFARI 2000 ground-based observations." J. Geophys. Res., 110 (D10): D10S18 [10.1029/2004JD004611]

    Krotkov, N. A., P. K. Bhartia, J. R. Herman, et al. J. Slusser, G. Scott, G. J. Labow, A. P. Vasilkov, T. F. Eck, O. Dubovik, and B. N. Holben. 2005. "Aerosol ultraviolet absorption experiment (2002 to 2004), part 2: absorption optical thickness, refractive index, and single scattering albedo." Opt Eng, 44 (4): 041005-1 - 041005-17 [10.1117/1.1886819]

    Loughman, R. P., D. E. Flittner, B. M. Herman, et al. P. K. Bhartia, E. Hilsenrath, and R. D. McPeters. 2005. "Description and sensitivity analysis of a limb scattering ozone retrieval algorithm." J. Geophys. Res., 110 (D19): D19301 [10.1029/2004JD005429]

    Vasilkov, A. P., J. Joiner, K. Yang, and P. K. Bhartia. 2004. "Improving total column ozone retrievals using cloud pressures derived from Raman scattering in the UV." Geophys Res Lett, 31 (L20109): [10.1029/2004GL020603]

    Ahmad, Z., P. Bhartia, and N. Krotkov. 2004. "Spectral properties of backscattered UV radiation in cloudy atmospheres." J. Geophys. Res., 109 (D1): D01201 [10.1029/2003JD003395]

    Joiner, J., A. P. Vasilkov, D. E. Flittner, J. F. Gleason, and P. K. Bhartia. 2004. "Retrieval of cloud pressure and oceanic chlorophyll content using Raman scattering in GOME ultraviolet spectra." J Geophys Res, 109 (D01109):

    Torres, O., P. K. Bhartia, J. R. Herman, et al. A. Syniuk, P. Ginoux, and B. N. Holben. 2002. "A long term record of aerosol optical depth from TOMS observations and comparison to AERONET measurements." J. Atm. Sci., 59 (3): 398-413 [10.1175/1520-0469(2002)059<0398:ALTROA>2.0.CO;2]

    Krotkov, N. A., J. R. Herman, P. K. Bhartia, et al. C. Seftor, A. Arola, J. Kaurola, L. Koskinen, S. Kalliskota, P. Taalas, and I. Geogdzhaev. 2002. "Version 2 TOMS UV algorithm: problems and enhancements." Opt. Eng., 41 (12): 3028-3039 [doi: 10.1117/1.1519541]

    Torres, O., J. R. Herman, P. K. Bhartia, and A. Sinyuk. 2002. "Aerosol properties from EP-TOMS near UV observations." Adv. Space Res., 29: 1771-1780.

    Miller, A. J., R. M. Nagatani, L. E. Flynn, et al. S. Kondragunta, E. Beach, R. Stolarski, R. D. McPeters, P. K. Bhartia, M. T. DeLand, C. H. Jackman, D. J. Wuebbles, K. O. Patten, and R. P. Cebula. 2002. "A cohesive total ozone data set from the SBUV(/2) satellite system." J. Geophys. Res., 107 (D23): 4701 [10.1029/2001JD000853]

    Krotkov, N., J. Herman, P. K. Bhartia, et al. C. Seftor, A. Arola, J. Kaurola, S. Kalliskota, P. Taalas, and I. V. Geogdzhayev. 2002. "Version 2 total ozone mapping spectrometer ultraviolet algorithm: problems and enhancements." Optical Engineering, 41 (12): 3028-3039 [10.1117/1.1519541]

    Vasilkov, A. P., J. Joiner, J. F. Gleason, and P. K. Bhartia. 2002. "Ocean Raman scattering in satellite backscatter ultraviolet measurements." Geophys Res Lett, 29 (17): 1837-1840 [10.1029/2002GL014955]

    Torres, O., and P. K. Bhartia. 1999. "Impact of tropospheric aerosol absorption on ozone retrieval from buv measurements." J.Geophys. Res., 104: 21569-21578.

    Torres, O., P. Bhartia, J. R. Herman, Z. Ahmad, and J. F. Gleason. 1998. "Derivation of aerosol properties from satellite measurements of backscattered ultraviolet radiation. Theoretical basis." J Geophys Res, 103 (D14): 17099-17110 [10.1029/98JD00900]

    Joiner, J., H. T. Lee, L. L. Strow, et al. P. K. Bhartia, S. Hannon, J. Miller, and L. Rokke. 1998. "Radiative transfer in the 96 micron HIRS ozone channel using collocated SBUV-determined ozone abundances." J Geophys Res, 103: 19213-19229.

    Seftor, C. J., N.-Y. C. Hsu, J. R. Herman, et al. P. K. Bhartia, O. Torres, W. Rose, D. Schneider, and N. Krotkov. 1997. "Detection of volcanic ash clouds from Nimbus-7/Total Ozone Mapping Spectrometer." J. Geophys. Res., 102 (D14): 16749-16760 [10.1029/97JD00925]

    Herman, J. R., P. K. Bhartia, O. Torres, et al. N. C. Hsu, C. J. Seftor, and E. Celarier. 1997. "Global distribution of UV-absorbing aerosols from Nimbus-7/TOMS data." J. Geophys. Res., 102: 16911-16921.

    Joiner, J., and P. K. Bhartia. 1997. "Accurate Determination of Total Ozone using SBUV Continuous Spectral Scan Measurements." J Geophys Res, 102 (D11): 12,957-12,969 [10.1029/97JD00902]

    Hsu, N.-Y. C., J. R. Herman, P. K. Bhartia, et al. C. J. Seftor, O. Torres, A. M. Thompson, J. F. Gleason, T. F. Eck, and B. N. Holben. 1996. "Detection of biomass burning smoke from TOMS measurements." Geophy. Res. Lett., 23 (7): 745-748 [10.1029/96GL00455]

    Herman, J., P. Bhartia, J. Ziemke, Z. Ahmad, and D. Larko. 1996. "UV-B increases (1979-1992) from decrease in total ozone." Geophys Res Lett, 23: 21107-21120.

    Torres, O., and P. K. Bhartia. 1995. "Effect of stratospheric aerosol on ozone profile from BUV measurements." Geophys. Res. Let., 22 (3): 235-238 [10.1029/94GL02994]

    Torres, O., J. R. Herman, P. K. Bhartia, and Z. Ahmad. 1995. "Properties of Mt. Pinatubo Aerosols as derived from Nimbus 7 TOMS measurements." J. Geophys. Res., 100: 14043 14055.

    Herman, J., P. Newman, R. McPeters, et al. A. Krueger, P. Bhartia, C. Seftor, O. Torres, G. Jaross, R. Cebula, D. Larko, and C. Wellemeyer. 1995. "Meteor-3 Total Ozone Mapping Spectrometer Observations of the 1993 Ozone Hole." J. Geophys. Res, 100: 2973-2983.

    Ahmad, Z., and P. K. Bhartia. 1995. "Effect of molecular anisotropy on backscattered ultraviolet radiance." Applied Optics, 34 (36): 8309 [10.1364/AO.34.008309]

    Joiner, J., P. K. Bhartia, R. P. Cebula, R. D. McPeters, and H. Park. 1995. "Rotational-Raman Scattering (Ring Effect) in Satellite Backscatter Ultraviolet Measurements." Appl Opt, 34: 4513-4525.

    Joiner, J., and P. K. Bhartia. 1995. "The Determination of Cloud Pressures from Rotational-Raman Scattering in Satellite Backscatter Ultraviolet Measurements." J Geophys Res, 100: 23019-23026.

    Toress, O., J. Herman, P. Bhartia, and Z. Ahmad. 1994. "Properties of mount Pinatubo aerosols as derived from Nimbus-TOMS measurements." J Geophys Res, 100: 14043-14055.

    Bhartia, P. K., J. R. Herman, R. D. McPeters, and O. Torres. 1993. "Effect of Mt. Pinatubo Aerosols on Total Ozone Measurements from Backscatter Ultraviolet (BUV) Experiments." J. Geophys. Res., 98 (D10): 18547 18554 [10.1029/93JD01739]

    Schoeberl, M. R., P. K. Bhartia, E. Hilsenrath, and O. Torres. 1993. "Tropical Ozone Loss Following the Eruption of Mt. Pinatubo." Geophys. Res. Let., 20: 29 32.

    Gleason, J., P. K. Bhartia, J. R. Herman, et al. R. McPeters, P. Newman, R. S. Stolarski, L. Flynn, G. Labow, D. Larko, C. Seftor, C. Wellemeyer, W. D. Komhyr, A. J. Miller, and W. Planet. 1993. "Record Low Global Ozone in 1992." Science, 260: 523-526.

    Non-Refereed

    Hsu, N.-Y. C., J. R. Herman, P. K. Bhartia, and C. J. Seftor. 1997. "Detection of global absorbing aerosols using TOMS data." IRS'96: Current problems in atmospheric radiation 1: Hampton, VA: 877-880.

    Brief Bio

    Dr. Bhartia is an internationally known expert on ultraviolet remote sensing of Earth from space. He developed the algorithms that have been used to produce ozone data from SBUV and TOMS series of instruments, and is a co-developer of the TOMS aerosol retrieval algorithm that produces unique daily global maps of smoke and dust, and can directly measure aerosol absorption from space. Algorithms and calibration techniques developed under Dr. Bhartia’s direction have been adapted by groups around the world to process data from advanced hyperspectral instruments on US and European satellites, including the OMI instrument currently flying on the EOS Aura satellite, and the OMPS instrument suite on the Suomi NPP satellite. He is currently serving as the OMPS-LP  Sensor Team Lead.

    Publications

    Refereed

    Chen, Z., P. K. Bhartia, R. Loughman, P. Colarco, and M. DeLand. 2018. "Improvement of stratospheric aerosol extinction retrieval from OMPS/LP using a new aerosol model." Atmospheric Measurement Techniques 11 (12): 6495-6509 [10.5194/amt-11-6495-2018]

    Vasilkov, A., E.-S. Yang, S. Marchenko, et al. W. Qin, L. Lamsal, J. Joiner, N. Krotkov, D. Haffner, P. K. Bhartia, and R. Spurr. 2018. "A cloud algorithm based on the O2-O2 477 nm absorption band featuring an advanced spectral fitting method and the use of surface geometry-dependent Lambertian-equivalent reflectivity." Atmospheric Measurement Techniques 11 (7): 4093-4107 [10.5194/amt-11-4093-2018]

    Kramarova, N. A., P. K. Bhartia, G. Jaross, et al. L. Moy, P. Xu, Z. Chen, M. DeLand, L. Froidevaux, N. Livesey, D. Degenstein, A. Bourassa, K. A. Walker, and P. Sheese. 2018. "Validation of ozone profile retrievals derived from the OMPS LP version 2.5 algorithm against correlative satellite measurements." Atmospheric Measurement Techniques 11 (5): 2837-2861 [10.5194/amt-11-2837-2018]

    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]

    Ziemke, J. R., S. A. Strode, A. R. Douglass, et al. J. Joiner, A. Vasilkov, L. D. Oman, J. Liu, S. E. Strahan, P. K. Bhartia, and D. P. Haffner. 2017. "A cloud-ozone data product from Aura OMI and MLS satellite measurements." Atmospheric Measurement Techniques 10 (11): 4067-4078 [10.5194/amt-10-4067-2017]

    Sofieva, V. F., E. Kyrölä, M. Laine, et al. J. Tamminen, D. Degenstein, A. Bourassa, C. Roth, D. Zawada, M. Weber, A. Rozanov, N. Rahpoe, G. Stiller, A. Laeng, T. von Clarmann, K. A. Walker, P. Sheese, D. Hubert, M. van Roozendael, C. Zehner, R. Damadeo, J. Zawodny, N. Kramarova, and P. K. Bhartia. 2017. "Merged SAGE II, Ozone_cci and OMPS ozone profiles dataset and evaluation of ozone trends in the stratosphere." Atmospheric Chemistry and Physics 17 12533-12552 [10.5194/acp-17-12533-2017]

    Steinbrecht, W., L. Froidevaux, R. Fuller, et al. R. Wang, J. Anderson, C. Roth, A. Bourassa, D. Degenstein, R. Damadeo, J. Zawodny, S. Frith, R. McPeters, P. Bhartia, J. Wild, C. Long, S. Davis, K. Rosenlof, V. Sofieva, K. Walker, N. Rahpoe, A. Rozanov, M. Weber, A. Laeng, T. von Clarmann, G. Stiller, N. Kramarova, S. Godin-Beekmann, T. Leblanc, R. Querel, D. Swart, I. Boyd, K. Hocke, N. Kämpfer, E. Maillard Barras, L. Moreira, G. Nedoluha, C. Vigouroux, T. Blumenstock, M. Schneider, O. Garcìa, N. Jones, E. Mahieu, D. Smale, M. Kotkamp, J. Robinson, I. Petropavlovskikh, N. Harris, B. Hassler, D. Hubert, and F. Tummon. 2017. "An update on ozone profile trends for the period 2000 to 2016." Atmospheric Chemistry and Physics 1-16 [10.5194/acp-17-10675-2017]

    Moy, L., P. K. Bhartia, G. Jaross, et al. R. Loughman, N. Kramarova, Z. Chen, G. Taha, G. Chen, and P. Xu. 2017. "Altitude registration of limb-scattered radiation." Atmospheric Measurement Techniques 10 (1): 167-178 [10.5194/amt-10-167-2017]

    Gupta, P., J. Joiner, A. Vasilkov, and P. K. Bhartia. 2016. "Top-of-the-atmosphere shortwave flux estimation from satellite observations: an empirical neural network approach applied with data from the A-train constellation." Atmospheric Measurement Techniques 9 (7): 2813-2826 [10.5194/amt-9-2813-2016]

    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]

    Harris, N. R., B. Hassler, F. Tummon, et al. G. E. Bodeker, D. Hubert, I. Petropavlovskikh, W. Steinbrecht, J. Anderson, P. K. Bhartia, C. D. Boone, A. Bourassa, S. M. Davis, D. Degenstein, A. Delcloo, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, N. Jones, M. J. Kurylo, E. Kyrölä, M. Laine, S. T. Leblanc, J.-C. Lambert, B. Liley, E. Mahieu, A. Maycock, M. de Mazière, A. Parrish, R. Querel, K. H. Rosenlof, C. Roth, C. Sioris, J. Staehelin, R. S. Stolarski, R. Stübi, J. Tamminen, C. Vigouroux, K. A. Walker, H. J. Wang, J. Wild, and J. M. Zawodny. 2015. "Past changes in the vertical distribution of ozone – Part 3: Analysis and interpretation of trends." Atmos. Chem. Phys. 15 (17): 9965-9982 [10.5194/acp-15-9965-2015]

    Labow, G. J., J. R. Ziemke, R. D. McPeters, D. P. Haffner, and P. K. Bhartia. 2015. "A total ozone-dependent ozone profile climatology based on ozonesondes and Aura MLS data." J. Geophys. Res. Atmos. 120 (6): 2537-2545 [10.1002/2014jd022634]

    Loughman, R., D. Flittner, E. Nyaku, and P. K. Bhartia. 2015. "Gauss–Seidel limb scattering (GSLS) radiative transfer model development in support of the Ozone Mapping and Profiler Suite (OMPS) limb profiler mission." Atmos. Chem. Phys. 15 (6): 3007-3020 [10.5194/acp-15-3007-2015]

    Frith, S. M., N. A. Kramarova, R. S. Stolarski, et al. R. D. Mc Peters, P. K. Bhartia, and G. J. Labow. 2014. "Recent changes in total column ozone based on the SBUV Version 8.6 Merged Ozone Data Set." J. Geophys. Res. Atmos. 119 (16): 9735–9751 [10.1002/2014JD021889]

    Jaross, G. R., P. K. Bhartia, G. Chen, et al. M. E. Kowitt, M. E. Haken, Z. Chen, Q. Xu, J. A. Warner, and T. J. Kelly. 2014. "OMPS Limb Profiler instrument performance assessment." J. Geophys. Res. Atmos. 119 (7): 4399-4412 [10.1002/2013JD020482]

    Hassler, B., I. Petropavlovskikh, J. Staehelin, et al. T. August, P. K. Bhartia, C. Clerbaux, D. Degenstein, M. De Mazière, B. M. Dinelli, A. Dudhia, G. Dufou, S. M. Frith, L. Froidevaux, S. Godin-Beekmann, J. Granville, N. P. Harris, K. Hoppel, D. Hubert, Y. Kasai, M. J. Kurylo, E. Kyrölä, J.-C. Lambert, P. F. Levelt, C. T. McElroy, R. D. McPeters, R. Munro, H. Nakajima, A. Parrish, P. Raspollini, E. E. Remsberg, K. H. Rosenlof, A. Rozanov, T. Sano, Y. Sasano, M. Shiotani, H. J. Smit, G. Stiller, J. Tamminen, D. W. Tarasick, J. Urban, R. J. van der A, J. P. Veefkind, C. Vigouroux, T. von Clarmann, C. von Savigny, K. A. Walker, M. Weber, J. Wild, and J. M. Zawodny. 2014. "Past changes in the vertical distribution of ozone - Part 1: Measurement techniques, uncertainties and availability." Atmos. Meas. Tech. 7 1395-1427 [10.5194/amt-7-1395-2014]

    Parrish, A., I. S. Boyd, G. E. Nedoluha, et al. P. K. Bhartia, S. M. Frith, N. A. Kramarova, B. J. Connor, G. E. Bodeker, L. Froidevaux, M. Shiotani, and T. Sakazaki. 2014. "Diurnal variations of stratospheric ozone measured by ground-based microwave remote sensing at the Mauna Loa NDACC site: measurement validation and GEOSCCM model comparison." Atmos. Chem. Phys. 14 7255-7272 [10.5194/acp-14-7255-2014]

    Chiou, E. W., P. K. Bhartia, R. D. Mc Peters, et al. D. G. Loyola, M. Coldewey-Egbers, V. E. Fioletov, M. van Roozendael, R. Spurr, C. Lerot, and S. M. Frith. 2014. "Comparison of profile total ozone from SBUV (v8.6) with GOME-type and ground-based total ozone for a 16-year period (1996 to 2011)." Atmos. Meas. Tech. 7 1681-1692 [10.5194/amt-7-1681-2014]

    Kramarova, N. A., E. R. Nash, P. A. Newman, et al. P. K. Bhartia, R. D. McPeters, D. F. Rault, C. J. Seftor, P. Q. Xu, and G. J. Labow. 2014. "Measuring the Antarctic ozone hole with the new Ozone Mapping and Profiler Suite (OMPS)." Atmos. Chem. Phys. 14 (5): 2353-2361 [10.5194/acp-14-2353-2014]

    Ziemke, J. R., M. A. Olsen, J. C. Witte, et al. A. R. Douglass, S. E. Strahan, K. Wargan, X. Liu, M. Schoeberl, K. Yang, T. Kaplan, S. Pawson, B. N. Duncan, P. Newman, P. K. Bhartia, and M. K. Heney. 2014. "Assessment and applications of NASA ozone data products derived from Aura OMI/MLS satellite measurements in context of the GMI chemical transport model." J. Geophys. Res. Atmos. 119 (9): 5671-5699 [10.1002/2013JD020914]

    Li, C., J. Joiner, N. A. Krotkov, and P. K. Bhartia. 2013. "A fast and sensitive new satellite SO2 retrieval algorithm based on principal component analysis: Application to the ozone monitoring instrument." Geophysical Research Letters 40 (23): 6314-6318 [10.1002/2013gl058134]

    Kramarova, N. A., S. M. Frith, P. K. Bhartia, et al. R. D. McPeters, S. L. Taylor, B. L. Fisher, G. J. Labow, and M. T. Deland. 2013. "Validation of ozone monthly zonal mean profiles obtained from the version 8.6 Solar Backscatter Ultraviolet algorithm." Atmos. Chem. Phys. 13 (14): 6887-6905 [10.5194/acp-13-6887-2013]

    Bucsela, E. J., N. A. Krotkov, L. N. Lamsal, et al. W. H. Swartz, P. K. Bhartia, K. F. Boersma, J. P. Veefkind, J. F. Gleason, and K. E. Pickering. 2013. "A new stratospheric and tropospheric NO2 retrieval algorithm for nadir-viewing satellite instruments: applications to OMI." Atmospheric Measurement Techniques 6 (10): 2607-2626 [10.5194/amt-6-2607-2013]

    Bhartia, P. K., R. D. Mc Peters, L. E. Flynn, et al. S. L. Taylor, N. A. Kramarova, S. M. Frith, B. L. Fisher, and M. T. Deland. 2013. "Solar Backscatter UV (SBUV) total ozone and profile algorithm." Atmos. Meas. Tech. 6 (10): 2533-2548 [10.5194/amt-6-2533-2013]

    Kramarova, N. A., P. K. Bhartia, S. M. Frith, R. D. Mc Peters, and R. S. Stolarski. 2013. "Interpreting SBUV smoothing errors: an example using the quasi-biennial oscillation." Atmos. Meas. Tech. 6 (8): 2089-2099 [10.5194/amt-6-2089-2013]

    Mc Peters, R. D., P. K. Bhartia, D. P. Haffner, G. J. Labow, and L. Flynn. 2013. "The version 8.6 SBUV ozone data record: An overview." J. Geophys. Res. Atmos. 118 (14): 8032–8039 [10.1002/jgrd.50597]

    Labow, G. J., R. D. Mc Peters, P. K. Bhartia, and N. A. Kramarova. 2013. "A comparison of 40 years of SBUV measurements of column ozone with data from the Dobson/Brewer network." J. Geophys. Res. Atmos. 118 (13): 7370-7378 [10.1002/jgrd.50503]

    Joiner, J., A. P. Vasilkov, P. Gupta, et al. P. K. Bhartia, P. Veefkind, M. Sneep, J. D. Haan, I. Polonsky, and R. Spurr. 2012. "Fast simulators for satellite cloud optical centroid pressure retrievals; evaluation of OMI cloud retrievals." Atmospheric Measurement Techniques 5 (3): 529-545 [Full Text (Link)] [10.5194/amt-5-529-2012]

    Torres, O., H. T. Jethva, and P. K. Bhartia. 2012. "Retrieval of Aerosol Optical Depth above Clouds from OMI Observations: Sensitivity Analysis and Case Studies." Journal of the Atmospheric Sciences 69 (3): 1037-1053 [10.1175/JAS-D-11-0130.1]

    Ziemke, J. R., S. Chandra, G. Labow, et al. P. K. Bhartia, L. Froidevaux, and J. C. Witte. 2011. "A global climatology of tropospheric and stratospheric ozone derived from Aura OMI and MLS measurements." Atmos. Chem. Phys. 11 (17): 9237-9251 [10.5194/acp-11-9237-2011]

    Salawitch, R. J., T. Canty, T. Kurosu, et al. K. Chance, Q. Liang, A. M. Da Silva, S. Pawson, J. E. Nielsen, J. M. Rodriguez, and P. K. Bhartia. 2010. "A new interpretation of total column BrO during Arctic spring." Geophysical Research Letters 37 (21): L21805 [10.1029/2010GL043798]

    Yang, K., X. Liu, P. K. Bhartia, et al. N. A. Krotkov, S. A. Carn, E. J. Hughes, A. J. Krueger, R. J. Spurr, and S. G. Trahan. 2010. "Direct retrieval of sulfur dioxide amount and altitude from spaceborne hyperspectral UV measurements: Theory and application." Journal of Geophysical Research 115 D00L09 [10.1029/2010jd013982]

    Yang, Q., D. M. Cunnold, Y. Choi, et al. Y. Wang, L. Froidevaux, A. M. Thompson, and P. K. Bhartia. 2010. "A study of tropospheric ozone column enhancements over North America using satellite data and a global chemical model." J. Geophys. Res. 115 D08302 [doi: 10.1029/2009JD012616]

    Joiner, J., A. Vasilkov, P. K. Bhartia, et al. G. Wind, S. E. Platnick, and W. Menzel. 2010. "Detection of multi-layer and vertically-extended clouds using A-train sensors." Atmos Meas Tech 3 (1): 233-247 [10.5194/amt-3-233-2010]

    Vasilkov, A., J. Joiner, D. P. Haffner, P. Bhartia, and R. Spurr. 2010. "What do satellite backscatter ultraviolet and visible spectrometers see over snow and ice? A study of clouds and ozone using the A-train." Atmos Meas Tech 3 (3): 619-629 [10.5194/amt-3-619-2010]

    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]

    Ziemke, J. R., S. Chandra, L. D. Oman, and P. K. Bhartia. 2010. "A new ENSO index derived from satellite measurements of column ozone." Atmos Chem Phys 10 3711-3721 [10.5194/acp-10-3711-2010]

    Huang, F., R. D. McPeters, P. K. Bhartia, et al. H. Mayr, S. Frith, J. M. Russell, and M. Mlynczak. 2010. "Temperature diurnal variations (migrating tides) in the stratosphere and lower mesosphere based on measurements from SABER on TIMED." J Geophys Res 115 (D16): D16121 [10.1029/2009JD013698]

    Pierce, R. B., J. A. Al-Saadi, C. Kittaka, et al. T. Schaak, A. Lenzen, K. W. Bowman, J. Szykman, A. Soja, T. Ryerson, A. M. Thompson, and P. K. Bhartia. 2009. "Impacts of Background Ozone Production on Houston and Dallas, TX, Air Quality during the TEXAQS Field Mission." J. Geophys. Res.-Atmos. 114 D00F09 [doi:10.1029/2008JD011337]

    Ziemke, J. R., J. Joiner, S. Chandra, et al. P. K. Bhartia, A. Vasilkov, D. P. Haffner, K. Yang, M. Schoeberl, L. Froidevaux, and P. Levelt. 2009. "Ozone mixing ratios inside tropical deep convective clouds from OMI satellite measurements." Atmos Chem Phys 9 573-583

    Yang, K., P. F. Levelt, P. K. Bhartia, et al. S. A. Carn, A. J. Krueger, and N. A. Krotkov. 2009. "Improving retrieval of volcanic sulfur dioxide from backscattered UV satellite observations." Geophysical Research Letters 36 (3): L03102 [10.1029/2008GL036036]

    Ziemke, J. R., S. Chandra, B. N. Duncan, et al. M. R. Schoeberl, M. R. Damon, O. Torres, and P. K. Bhartia. 2009. "Recent biomass burning in the tropics and related changes in tropospheric ozone." Geophysical Research Letters 36 (15): L15819 [10.1029/2009GL039303]

    Ahn, C., O. Torres, and P. K. Bhartia. 2008. "Comparison of Ozone Monitoring Instrument UV Aerosol Products with Aqua/Moderate Resolution Imaging Spectroradiometer and Multiangle Imaging Spectroradiometer observations in 2006." J Geophy Res 113 (D16S27): [10.1029/2007JD008832]

    Krotkov, N. A., B. McClure, R. R. Dickerson, et al. S. A. Carn, C. Li, P. K. Bhartia, K. Yang, A. J. Krueger, Z. Li, P. F. Levelt, H. Chen, P. Wang, and D. Lu. 2008. "Validation of SO2 retrievals from the Ozone Monitoring Instrument over NE China." J Geophys Res 113 (D16S40, doi:101029/):

    McPeters, R. D., M. Kroon, G. Labow, et al. E. Brinksma, D. Balis, I. Petropavtovskikh, J. P. Veefkind, P. K. Bhartia, and P. F. Levelt. 2008. "Validation of the Aura Ozone Monitoring Instrument total column ozone product." J Geopohys Res 113 (D15S14, doi:101029/):

    Vasilkov, A. P., J. Joiner, R. Spurr, et al. P. K. Bhartia, P. F. Levelt, and G. Stephens. 2008. "Evaluation of the OMI cloud pressures derived from rotational Raman scattering by comparisons with other satellite data and radiative transfer simulations." J. Geophys. Res. 113 (D15): D15S19 [10.1029/2007JD008689]

    Schoeberl, M. R., J. R. Ziemke, B. Bojkov, et al. N. Livesey, B. Duncan, S. Strahan, L. Froidevaux, S. Kulawik, P. K. Bhartia, S. Chandra, P. F. Levelt, J. C. Witte, A. M. Thompson, E. Cuevas, A. Redondas, D. W. Tarasick, J. Davies, G. Bodeker, G. Hansen, B. J. Johnson, S. J. Oltmans, H. Vömel, M. Allaart, H. Kelder, M. Newchurch, S. Godin-Beekmann, G. Ancellet, H. Claude, S. B. Andersen, E. Kyrö, M. Parrondos, M. Yela, G. Zablocki, D. Moore, H. Dier, P. von der Gathen, P. Viatte, R. Stübi, B. Calpini, P. Skrivankova, V. Dorokhov, H. de Backer, F. J. Schmidlin, G. Coetzee, M. Fujiwara, V. Thouret, F. Posny, G. Morris, J. Merrill, C. P. Leong, G. Koenig-Langlo, and E. Joseph. 2007. "A trajectory-based estimate of the tropospheric ozone column using the residual method." Journal of Geophysical Research 112 (D24): D24S49 [10.1029/2007jd008773]

    Yang, K., N. A. Krotkov, A. J. Krueger, et al. S. A. Carn, P. K. Bhartia, and P. F. Levelt. 2007. "Retrieval of large volcanic SO 2 columns from the Aura Ozone Monitoring Instrument: Comparison and limitations." Journal of Geophysical Research 112 (D24): D24S43 [10.1029/2007jd008825]

    Chandra, S., J. Ziemke, M. Schoeberl, et al. L. Froidevaux, W. Read, P. Levelt, and P. K. Bhartia. 2007. "Effects of the 2004 El Niño on tropospheric ozone and water vapor." Geophy Res Lett 34 (6): L06802 [10.1029/2006GL028779]

    Torres, O., A. Tanskanen, B. Veihelman, et al. C. Ahn, R. Braak, P. K. Bhartia, P. Veefkind, and P. Levelt. 2007. "Aerosols and Surface UV Products from OMI Observations: An Overview." J. Geophys. Res. 112 (D24): D24S47 [10.1029/2007JD008809]

    Ziemke, J. R., S. Chandra, M. R. Schoeberl, et al. L. Froidevaux, W. G. Read, P. F. Levelt, and P. K. Bhartia. 2007. "Intra-seasonal variability in tropospheric ozone and water vapor in the tropics." GeopHy Res Lett 34 (L17804, doi:101029/):

    Krotkov, N. A., S. Carn, A. J. Krueger, P. K. Bhartia, and K. Yang. 2006. "Band Residual Difference Algorithm for Retrieval of SO2 from the Aura Ozone Monitoring Instrument (OMI)." IEEE Transactions on Geoscience and Remote Sensing 44 (5): 1259-1266 [10.1109/TGRS.2005.861932]

    Steinbrecht, W., H. Claude, F. Schonenborn, et al. I. McDermid, T. Leblanc, S. Godin, T. Song, D. P. Swart, Y. Meijer, G. Bodeker, B. Connor, N. Kampfer, K. Hocke, Y. Calisesi, N. Schneider, J. de la Noe, A. Parrish, I. Boyd, C. Bruhl, B. Steil, M. Giorgetta, E. Manzini, L. Thomason, J. Zawodny, M. McCormick, J. M. Russell, P. K. Bhartia, R. Stolarski, and S. Hollandsworth-Frith. 2006. "Long-term evolution of upper stratospheric ozone at selected stations of the network for the detection of stratospheric change (NDSC)." J Geophys Res 111 D10308

    Schoeberl, M., A. Douglass, E. Hilsenrath, et al. P. K. Bhartia, R. Beer, J. Waters, M. Gunson, L. Froidevaux, J. Gille, J. Barnett, P. Levelt, and P. DeCola. 2006. "Overview of the EOS Aura Mission." IEEE Trans on Geosc And Remote Sensing 44 (5): IGRSD2 1066-1074

    Levelt, P., E. Hilsenrath, G. Leppelmeier, et al. G. H. van den Oord, P. K. Bhartia, J. Tamminen, J. F. de Haan, and J. Veefkind. 2006. "Science objectives of the Ozone Monitoring Instrument." IEEE Trans on Geosc And Remote Sensing 44 (5): IGRSD2 1199-1208

    Ziemke, J., S. Chandra, B. Duncan, et al. L. Froidevaux, P. K. Bhartia, P. Levelt, and J. Waters. 2006. "Tropospheric ozone determined from Aura OMI and MLS: Evaluation of measurements and comparison with the Global Modeling Initiative's Chemical Transport Model." J. Geophys. Res. 111 (D19): D19303 [10.1029/2006JD007089]

    Joiner, J., A. P. Vasilkov, K. Yang, and P. K. Bhartia. 2006. "Observations over hurricanes from the ozone monitoring instrument." Geophysical Research Letters 33 (6): L06807 [10.1029/2005GL025592]

    Krotkov, N. A., P. K. Bhartia, J. R. Herman, et al. J. Slusser, G. J. Labow, G. Scott, G. Janson, T. F. Eck, and B. N. Holben. 2005. "Aerosol ultraviolet absorption experiment (2002 to 2004), part 1: ultraviolet multifilter rotating shadowband radiometer calibration and intercomparison with CIMEL sunphotometers." Opt Eng 44 (4): 041004-1 - 041004-17 [10.1117/1.1886818]

    Torres, O., P. K. Bhartia, A. Syniuk, E. J. Welton, and B. N. Holben. 2005. "Total Ozone Mapping Spectrometer measurements of aerosol absorption from space: Comparison to SAFARI 2000 ground-based observations." J. Geophys. Res. 110 (D10): D10S18 [10.1029/2004JD004611]

    Krotkov, N. A., P. K. Bhartia, J. R. Herman, et al. J. Slusser, G. Scott, G. J. Labow, A. P. Vasilkov, T. F. Eck, O. Dubovik, and B. N. Holben. 2005. "Aerosol ultraviolet absorption experiment (2002 to 2004), part 2: absorption optical thickness, refractive index, and single scattering albedo." Opt Eng 44 (4): 041005-1 - 041005-17 [10.1117/1.1886819]

    Loughman, R. P., D. E. Flittner, B. M. Herman, et al. P. K. Bhartia, E. Hilsenrath, and R. D. McPeters. 2005. "Description and sensitivity analysis of a limb scattering ozone retrieval algorithm." J. Geophys. Res. 110 (D19): D19301 [10.1029/2004JD005429]

    Vasilkov, A. P., J. Joiner, K. Yang, and P. K. Bhartia. 2004. "Improving total column ozone retrievals using cloud pressures derived from Raman scattering in the UV." Geophys Res Lett 31 (L20109): [10.1029/2004GL020603]

    Ahmad, Z., P. Bhartia, and N. Krotkov. 2004. "Spectral properties of backscattered UV radiation in cloudy atmospheres." J. Geophys. Res. 109 (D1): D01201 [10.1029/2003JD003395]

    Joiner, J., A. P. Vasilkov, D. E. Flittner, J. F. Gleason, and P. K. Bhartia. 2004. "Retrieval of cloud pressure and oceanic chlorophyll content using Raman scattering in GOME ultraviolet spectra." J Geophys Res 109 (D01109):

    Torres, O., P. K. Bhartia, J. R. Herman, et al. A. Syniuk, P. Ginoux, and B. N. Holben. 2002. "A long term record of aerosol optical depth from TOMS observations and comparison to AERONET measurements." J. Atm. Sci. 59 (3): 398-413 [10.1175/1520-0469(2002)059<0398:ALTROA>2.0.CO;2]

    Krotkov, N. A., J. R. Herman, P. K. Bhartia, et al. C. Seftor, A. Arola, J. Kaurola, L. Koskinen, S. Kalliskota, P. Taalas, and I. Geogdzhaev. 2002. "Version 2 TOMS UV algorithm: problems and enhancements." Opt. Eng. 41 (12): 3028-3039 [doi: 10.1117/1.1519541]

    Torres, O., J. R. Herman, P. K. Bhartia, and A. Sinyuk. 2002. "Aerosol properties from EP-TOMS near UV observations." Adv. Space Res. 29 1771-1780.

    Miller, A. J., R. M. Nagatani, L. E. Flynn, et al. S. Kondragunta, E. Beach, R. Stolarski, R. D. McPeters, P. K. Bhartia, M. T. DeLand, C. H. Jackman, D. J. Wuebbles, K. O. Patten, and R. P. Cebula. 2002. "A cohesive total ozone data set from the SBUV(/2) satellite system." J. Geophys. Res. 107 (D23): 4701 [10.1029/2001JD000853]

    Krotkov, N., J. Herman, P. K. Bhartia, et al. C. Seftor, A. Arola, J. Kaurola, S. Kalliskota, P. Taalas, and I. V. Geogdzhayev. 2002. "Version 2 total ozone mapping spectrometer ultraviolet algorithm: problems and enhancements." Optical Engineering 41 (12): 3028-3039 [10.1117/1.1519541]

    Vasilkov, A. P., J. Joiner, J. F. Gleason, and P. K. Bhartia. 2002. "Ocean Raman scattering in satellite backscatter ultraviolet measurements." Geophys Res Lett 29 (17): 1837-1840 [10.1029/2002GL014955]

    Torres, O., and P. K. Bhartia. 1999. "Impact of tropospheric aerosol absorption on ozone retrieval from buv measurements." J.Geophys. Res. 104 21569-21578.

    Torres, O., P. Bhartia, J. R. Herman, Z. Ahmad, and J. F. Gleason. 1998. "Derivation of aerosol properties from satellite measurements of backscattered ultraviolet radiation. Theoretical basis." J Geophys Res 103 (D14): 17099-17110 [10.1029/98JD00900]

    Joiner, J., H. T. Lee, L. L. Strow, et al. P. K. Bhartia, S. Hannon, J. Miller, and L. Rokke. 1998. "Radiative transfer in the 96 micron HIRS ozone channel using collocated SBUV-determined ozone abundances." J Geophys Res 103 19213-19229

    Seftor, C. J., N.-Y. C. Hsu, J. R. Herman, et al. P. K. Bhartia, O. Torres, W. Rose, D. Schneider, and N. Krotkov. 1997. "Detection of volcanic ash clouds from Nimbus-7/Total Ozone Mapping Spectrometer." J. Geophys. Res. 102 (D14): 16749-16760 [10.1029/97JD00925]

    Herman, J. R., P. K. Bhartia, O. Torres, et al. N. C. Hsu, C. J. Seftor, and E. Celarier. 1997. "Global distribution of UV-absorbing aerosols from Nimbus-7/TOMS data." J. Geophys. Res. 102 16911-16921.

    Joiner, J., and P. K. Bhartia. 1997. "Accurate Determination of Total Ozone using SBUV Continuous Spectral Scan Measurements." J Geophys Res 102 (D11): 12,957-12,969 [10.1029/97JD00902]

    Hsu, N.-Y. C., J. R. Herman, P. K. Bhartia, et al. C. J. Seftor, O. Torres, A. M. Thompson, J. F. Gleason, T. F. Eck, and B. N. Holben. 1996. "Detection of biomass burning smoke from TOMS measurements." Geophy. Res. Lett. 23 (7): 745-748 [10.1029/96GL00455]

    Herman, J., P. Bhartia, J. Ziemke, Z. Ahmad, and D. Larko. 1996. "UV-B increases (1979-1992) from decrease in total ozone." Geophys Res Lett 23 21107-21120

    Torres, O., and P. K. Bhartia. 1995. "Effect of stratospheric aerosol on ozone profile from BUV measurements." Geophys. Res. Let. 22 (3): 235-238 [10.1029/94GL02994]

    Torres, O., J. R. Herman, P. K. Bhartia, and Z. Ahmad. 1995. "Properties of Mt. Pinatubo Aerosols as derived from Nimbus 7 TOMS measurements." J. Geophys. Res. 100 14043 14055

    Herman, J., P. Newman, R. McPeters, et al. A. Krueger, P. Bhartia, C. Seftor, O. Torres, G. Jaross, R. Cebula, D. Larko, and C. Wellemeyer. 1995. "Meteor-3 Total Ozone Mapping Spectrometer Observations of the 1993 Ozone Hole." J. Geophys. Res 100 2973-2983

    Ahmad, Z., and P. K. Bhartia. 1995. "Effect of molecular anisotropy on backscattered ultraviolet radiance." Applied Optics 34 (36): 8309 [10.1364/AO.34.008309]

    Joiner, J., P. K. Bhartia, R. P. Cebula, R. D. McPeters, and H. Park. 1995. "Rotational-Raman Scattering (Ring Effect) in Satellite Backscatter Ultraviolet Measurements." Appl Opt 34 4513-4525

    Joiner, J., and P. K. Bhartia. 1995. "The Determination of Cloud Pressures from Rotational-Raman Scattering in Satellite Backscatter Ultraviolet Measurements." J Geophys Res 100 23019-23026

    Toress, O., J. Herman, P. Bhartia, and Z. Ahmad. 1994. "Properties of mount Pinatubo aerosols as derived from Nimbus-TOMS measurements." J Geophys Res 100 14043-14055

    Bhartia, P. K., J. R. Herman, R. D. McPeters, and O. Torres. 1993. "Effect of Mt. Pinatubo Aerosols on Total Ozone Measurements from Backscatter Ultraviolet (BUV) Experiments." J. Geophys. Res. 98 (D10): 18547 18554 [10.1029/93JD01739]

    Schoeberl, M. R., P. K. Bhartia, E. Hilsenrath, and O. Torres. 1993. "Tropical Ozone Loss Following the Eruption of Mt. Pinatubo." Geophys. Res. Let. 20 29 32.

    Gleason, J., P. K. Bhartia, J. R. Herman, et al. R. McPeters, P. Newman, R. S. Stolarski, L. Flynn, G. Labow, D. Larko, C. Seftor, C. Wellemeyer, W. D. Komhyr, A. J. Miller, and W. Planet. 1993. "Record Low Global Ozone in 1992." Science 260 523-526

    Non-Refereed

    Hsu, N.-Y. C., J. R. Herman, P. K. Bhartia, and C. J. Seftor. 1997. "Detection of global absorbing aerosols using TOMS data." IRS'96: Current problems in atmospheric radiation 1 877-880

                                                                                                                                                                                            
    NASA Logo, National Aeronautics and Space Administration