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TOMS Tropical Tropospheric Ozone Data Sets at the University of Maryland WebsiteSince 1997, shortly after the launch of the Earth-Probe TOMS (Total Ozone Mapping Spectrometer) satellite instrument, we have been processing data in near-real time to post maps of tropical tropospheric ozone at a website: Daily, 3-day and 9-day averages of tropical tropospheric ozone column depth (TTO) are viewable from 10N to 10S. Data can be downloaded (running 9-day means) from 20N-30S. Pollution events are trackable along with dynamically-induced variations in tropospheric ozone column. TOMS smoke aerosol ( can be used to interpret biomass burning ozone, as for example, during the extreme ozone and smoke pollution period during the ENSO-related fires of August November 1997. During that time plumes of ozone and smoke were frequently decoupled and ozone from Indonesian fires and from Africa merged in one large feature by late October 1997. In addition to the Earth-Probe TOMS record, data as half-month averages and as daily 9-day means from the Nimbus 7 TOMS instrument are at the website. A guide to the website and examples of ozone time-series and maps will be shown.
Document ID
Document Type
Conference Paper
Kochhar, A. K. (Maryland Univ. College Park, MD United States)
Thompson, A. M. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Hudson, R. D. (Maryland Univ. College Park, MD United States)
Frolov, A. D. (Maryland Univ. College Park, MD United States)
Witte, J. C. (Science Systems and Applications, Inc. Greenbelt, MD United States)
Einaudi, Franco
Date Acquired
August 20, 2013
Publication Date
January 1, 2001
Subject Category
Environment Pollution
Meeting Information
AGU Spring Meeting(Boston, MA)
Distribution Limits
Work of the US Gov. Public Use Permitted.