N
Nickolay A. Krotkov
Researcher at Goddard Space Flight Center
Publications - 237
Citations - 13636
Nickolay A. Krotkov is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Ozone Monitoring Instrument & Total Ozone Mapping Spectrometer. The author has an hindex of 63, co-authored 219 publications receiving 11250 citations. Previous affiliations of Nickolay A. Krotkov include University of Baltimore & Raytheon.
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Journal ArticleDOI
Aura OMI observations of regional SO2 and NO2 pollution changes from 2005 to 2015
Nickolay A. Krotkov,Chris A. McLinden,Can Li,Lok N. Lamsal,Edward A. Celarier,Sergey Marchenko,William H. Swartz,Eric Bucsela,Joanna Joiner,Bryan N. Duncan,K. Folkert Boersma,K. Folkert Boersma,J. Pepijn Veefkind,Pieternel F. Levelt,Vitali Fioletov,Russell R. Dickerson,Hao He,Zifeng Lu,David G. Streets +18 more
TL;DR: The Ozone Monitoring Instrument (OMI) onboard NASA's Aura satellite has been providing global observations of the ozone layer and key atmospheric pollutant gases, such as nitrogen dioxide (NO2) and sulfur dioxide (SO2), since October 2004 as mentioned in this paper.
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Emissions estimation from satellite retrievals: A review of current capability
David G. Streets,Timothy P. Canty,Gregory R. Carmichael,Benjamin de Foy,Russell R. Dickerson,Bryan N. Duncan,David P. Edwards,John Haynes,Daven K. Henze,Marc Houyoux,Daniel J. Jacob,Nickolay A. Krotkov,Lok N. Lamsal,Yang Liu,Zifeng Lu,Randall V. Martin,Gabriele Pfister,Robert W. Pinder,Ross J. Salawitch,K. Wecht +19 more
TL;DR: In this article, a comprehensive literature review and comprising input by both satellite experts and emission inventory specialists, the review identifies several targets that seem promising: large point sources of NOx and SO2, species that are difficult to measure by other means (NH3 and CH4, for example), area sources that cannot easily be quantified by traditional bottom-up methods (such as unconventional oil and gas extraction, shipping, biomass burning, and biogenic sources), and the temporal variation of emissions (seasonal, diurnal, episodic).
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Band residual difference algorithm for retrieval of SO/sub 2/ from the aura ozone monitoring instrument (OMI)
TL;DR: An OMI SO/sub 2/ algorithm (the band residual difference) that uses calibrated residuals at SO/ sub 2/ absorption band centers produced by the NASA operational ozone algorithm (OMTO3) is described, which permits daily global measurement of passive volcanic degassing of SO/ Sub 2/ and of heavy anthropogenic SO/Sub 2/ pollution to provide new information on the relative importance of these sources for climate studies.
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India Is Overtaking China as the World's Largest Emitter of Anthropogenic Sulfur Dioxide.
Can Li,Can Li,Chris A. McLinden,Vitali Fioletov,Nickolay A. Krotkov,Simon Carn,Joanna Joiner,David G. Streets,Hao He,Xinrong Ren,Xinrong Ren,Zhanqing Li,Russell R. Dickerson +12 more
TL;DR: Satellite observations are used to show that China and India are on opposite trajectories for sulfurous pollution, suggesting effective SO2 control in China and lack thereof in India.
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A new stratospheric and tropospheric NO2 retrieval algorithm for nadir-viewing satellite instruments : applications to OMI
Eric Bucsela,Nickolay A. Krotkov,Edward A. Celarier,Edward A. Celarier,Lok N. Lamsal,Lok N. Lamsal,William H. Swartz,William H. Swartz,P. K. Bhartia,K. F. Boersma,K. F. Boersma,J. P. Veefkind,James F. Gleason,Kenneth E. Pickering +13 more
TL;DR: In this article, a new algorithm for the retrieval of nitrogen dioxide (NO2) vertical columns from nadir-viewing satellite instruments is described, and the sensitivity of the retrieval to assumptions made in the stratosphere-troposphere separation is discussed and shown to be small, in an absolute sense, for most regions.