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Highlights of the Version 8 SBUV and TOMS Datasets Released at this SymposiumLast October was the 25th anniversary of the launch of the SBUV and TOMS instruments on NASA's Nimbus-7 satellite. Total Ozone and ozone profile datasets produced by these and following instruments have produced a quarter century long record. Over time we have released several versions of these datasets to incorporate advances in UV radiative transfer, inverse modeling, and instrument characterization. In this meeting we are releasing datasets produced from the version 8 algorithms. They replace the previous versions (V6 SBUV, and V7 TOMS) released about a decade ago. About a dozen companion papers in this meeting provide details of the new algorithms and intercomparison of the new data with external data. In this paper we present key features of the new algorithm, and discuss how the new results differ from those released previously. We show that the new datasets have better internal consistency and also agree better with external datasets. A key feature of the V8 SBUV algorithm is that the climatology has no influence on inter-annual variability and trends; it only affects the mean values and, to a limited extent, the seasonal dependence. By contrast, climatology does have some influence on TOMS total O3 trends, particularly at large solar zenith angles. For this reason, and also because TOMS record has gaps, md EP/TOMS is suffering from data quality problems, we recommend using SBUV total ozone data for applications where the high spatial resolution of TOMS is not essential.
Document ID
Document Type
Conference Paper
Bhartia, Pawan K. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
McPeters, Richard D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Flynn, Lawrence E. (National Environmental Satellite Service MD, United States)
Wellemeyer, Charles G. (Science Systems and Applications, Inc. Lanham, MD, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Meteorology and Climatology
Meeting Information
International Quadrennial Ozone Symposium(Kos)
Distribution Limits
Work of the US Gov. Public Use Permitted.