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.
Papers
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Journal ArticleDOI
Inconsistencies in sulfur dioxide emissions from the Canadian oil sands and potential implications
Chris A. McLinden,Cristen Adams,Vitali Fioletov,Debora Griffin,Paul A. Makar,Xiaoyi Zhao,Andrew Kovachik,Nolan Dickson,Cassandra Brown,Nickolay A. Krotkov,Can Li,Can Li,Nicolas Theys,Pascal Hedelt,Diego Loyola +14 more
TL;DR: In this article, satellite-derived and reported sulphur dioxide (SO2) emissions from the Canadian oil sands are shown to have been consistent up to 2013, with reported emissions dropping by a factor of two, while satellite derived emissions for the region remained relatively constant, with the discrepancy (satellite-derived emissions minus reported emissions) peaking at 50 kT(SO 2 ) around 2016.
Journal ArticleDOI
Geophysicists unite to validate volcanic SO2 measurements
Stephen J. Schaefer,J. B. Kerr,M. M. Millán,Vincent J. Realmuto,Arlin J. Krueger,Nickolay A. Krotkov,C. J. Seftor,Ian E. Sprod +7 more
TL;DR: In this paper, a validation program is proposed to extend the range of volcanic eruptions that can be accurately measured by both ground and satellite instruments, by using the total ozone mapping spectrometer (TOMS).
Journal ArticleDOI
Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements
Sujung Go,Jhoon Kim,Jungbin Mok,Hitoshi Irie,Jongmin Yoon,Omar Torres,Nickolay A. Krotkov,Gordon Labow,Mijin Kim,Mijin Kim,Mijin Kim,Ja Ho Koo,Myungje Choi,Myungje Choi,Hyunkwang Lim +14 more
TL;DR: In this article, the spectral variation of column aerosol absorption in the ultraviolet (UV) and visible (Vis) wavelengths is required for accurate satellite-based aerosol and trace-gas retrievals.
Proceedings ArticleDOI
Partitioning between aerosol and NO 2 absorption in the UV spectral region
TL;DR: In this paper, the aerosol column absorption optical thickness (AAOT) was inferred from the measurements of global and diffuse atmospheric transmittances by a UV-multifilter rotating shadowband radiometer (UV-MFRSR), calibrated using AERONET CIMEL sun-sky radiometers.
Posted ContentDOI
Validation of satellite SO 2 observations in northern Finland during the Icelandic Holuhraun fissure eruption
Iolanda Ialongo,Janne Hakkarainen,Rigel Kivi,P. Anttila,Nickolay A. Krotkov,K. Yang,Can Li,Simo Tukiainen,S. Hassinen,Johanna Tamminen +9 more
TL;DR: In this article, the authors present a survey of the literature in this area: https://www.referred.org.au/blog/blogging-and-blogging/