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The intercomparison of ozone measured from the SME and Nimbus‐7 satellites on short and long time scales
Author(s) -
Chandra S.,
McPeters R. D.,
Srivastava D. N.
Publication year - 1986
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl013i013p01387
Subject(s) - atmospheric sciences , environmental science , ozone , altitude (triangle) , backscatter (email) , spectrometer , mixing ratio , latitude , ultraviolet , total ozone mapping spectrometer , longitude , flux (metallurgy) , climatology , meteorology , ozone layer , physics , materials science , geology , geodesy , telecommunications , geometry , mathematics , computer science , wireless , metallurgy , quantum mechanics
The spatial and temporal characteristics of ozone density measured from the SBUV (Solar Backscatter Ultraviolet) spectrometer on Nimbus‐7 and the UV and the IR spectrometers on SME (Solar Mesosphere Explorer) are compared in the altitude region near 50 km where the three data sets overlap. Their temporal characteristics, when averaged over the same longitude range, are remarkably similar with respect to seasonal variations and short term fluctuations induced by transient planetary waves. The long term trends in the three data sets, however, differ significantly with each other. Over the three year period after 1982 ozone mixing ratio at 1 mb decreased by about 10 percent based on SBUV measurements but increased by 12 and 30 percent respectively based on SME‐IR and SME‐UV measurements. None of these estimates are consistent with the predicted decrease of about 2 percent based on solar UV flux and temperature changes during this period.