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Evolution of the Southern Oscillation as observed by the Nimbus-7 ERB experimentThe Nimbus-7 satellite has been in a 955-km, sun-synchronous orbit since October 1978. The Earth Radiation Budget (ERB) experiment has taken approximately 8 years of high-quality data during this time, of which seven complete years have been archived at the National Space Science Data Center. A final reprocessing of the wide-field-of-view channel dataset is underway. Error analyses indicate a long-term stability of 1 percent better over the length of the data record. As part of the validation of the ERB measurements, the archived 7-year Nimbus-7 ERB dataset is examined for the presence and accuracy of interannual variations including the Southern Oscillation signal. Zonal averages of broadband outgoing longwave radiation indicate a terrestrial response of more than 2 years to the oceanic and atmospheric manifestations of the 1982-83 El Nino/Southern Oscillation (ENSO) event, especially in the tropics. This signal is present in monthly and seasonal averages and is shown here to derive primarily from atmospheric responses to adjustments in the Pacific Ocean. The calibration stability of this dataset thus provides a powerful new tool to examine the physics of the ENSO phenomena.
Document ID
19880034153
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ardanuy, Philip E.
(Research and Data Systems Corp. Lanham, MD, United States)
Kyle, H. Lee
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chang, Hyo-Duck
(STX Corp. Hyattsville, MD, United States)
Date Acquired
August 13, 2013
Publication Date
November 1, 1987
Publication Information
Publication: Monthly Weather Review
Volume: 115
ISSN: 0027-0644
Subject Category
Meteorology And Climatology
Accession Number
88A21380
Distribution Limits
Public
Copyright
Other

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