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I. A. Megretskaia
Researcher at Harvard University
Publications - 21
Citations - 2146
I. A. Megretskaia is an academic researcher from Harvard University. The author has contributed to research in topics: Stratosphere & Tropospheric ozone. The author has an hindex of 19, co-authored 21 publications receiving 2041 citations.
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Journal ArticleDOI
Global budget of CO, 1988–1997: Source estimates and validation with a global model
Bryan N. Duncan,Bryan N. Duncan,Bryan N. Duncan,Jennifer A. Logan,Isabelle Bey,Isabelle Bey,I. A. Megretskaia,Robert M. Yantosca,Paul C. Novelli,Nicholas B. Jones,Nicholas B. Jones,Curtis P. Rinsland +11 more
TL;DR: In this paper, a model study of carbon monoxide for 1988-1997 using the GEOS-Chem 3-D model driven by assimilated meteorological data, with time-varying emissions from biomass burning and from fossil fuel and industry, overhead ozone columns, and methane.
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Global Estimates of CO Sources with High Resolution by Adjoint Inversion of Multiple Satellite Datasets (MOPITT, AIRS, SCIAMACHY, TES)
Monika Kopacz,Monika Kopacz,Daniel J. Jacob,John Fisher,Jennifer A. Logan,Lin Zhang,I. A. Megretskaia,Robert M. Yantosca,Kumaresh Singh,Daven K. Henze,John P. Burrows,Michael Buchwitz,Iryna Khlystova,W. W. McMillan,John C. Gille,David P. Edwards,Annmarie Eldering,Valérie Thouret,Valérie Thouret,Philippe Nédélec,Philippe Nédélec +20 more
TL;DR: In this article, the authors combine CO column measurements from the MOPITT, AIRS, SCIAMACHY, and TES satellite instruments in a full-year (May 2004-April 2005) global inversion of CO sources at 4°×5° spatial resolution and monthly temporal resolution.
Book
Trends in the Vertical Distribution of Ozone: A Comparison of Two Analyses of Ozonesonde Data
Jennifer A. Logan,I. A. Megretskaia,Alvin J. Miller,George C. Tiao,Dongseok Choi,Lan Zhang,Richard S. Stolarski,G. J. Labow,G. J. Labow,S. M. Hollandsworth,Greg Bodeker,Hans Claude,D. De Muer,James B. Kerr,David W. Tarasick,Samuel J. Oltmans,Beverly J. Johnson,F. J. Schmidlin,Johannes Staehelin,P. Viatte,Osamu Uchino +20 more
TL;DR: In this article, the authors present the results of two independent analyses of ozonesonde measurements of the vertical profile of ozone and find significant decreases in stratospheric ozone at all stations in middle and high latitudes of the northern hemisphere from 1970 to 1996, with the largest decreases located between 12 and 21 km.
Journal ArticleDOI
First Directly Retrieved Global Distribution of Tropospheric Column Ozone from GOME: Comparison with the GEOS-CHEM Model
Xiong Liu,Kelly Chance,Christopher E. Sioris,Thomas P. Kurosu,Robert Spurr,Randall V. Martin,Randall V. Martin,Tzung-May Fu,Jennifer A. Logan,Daniel J. Jacob,Paul I. Palmer,Paul I. Palmer,Michael J. Newchurch,I. A. Megretskaia,Robert B. Chatfield +14 more
TL;DR: In this paper, the first directly retrieved global distribution of tropospheric column ozone from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements during December 1996 to November 1997 was presented.
Journal ArticleDOI
Comparisons of Tropospheric Emission Spectrometer (TES) ozone profiles to ozonesondes: Methods and initial results
Helen M. Worden,Jennifer A. Logan,John Worden,Reinhard Beer,Kevin W. Bowman,Shepard A. Clough,Annmarie Eldering,Brendan Fisher,M. R. Gunson,Robert L. Herman,Susan S. Kulawik,M. Lampel,M. Luo,I. A. Megretskaia,Gregory B. Osterman,Mark W. Shephard +15 more
TL;DR: In this article, the Tropospheric Emission Spectrometer (TES) on the Earth Observing System (EOS)-Aura spacecraft measured global profiles of atmospheric ozone with vertical resolution of 6-7 km in the troposphere for the nadir view.