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Accession Number
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N20120012822
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Title
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Interannual Variability of OLR as Observed by AIRS and CERES.
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Publication Date
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Jan 2012
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Media Count
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54p
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Personal Author
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G. Molnar J. Susskind L. Iredell N. G. Loeb
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Abstract
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This paper compares spatial anomaly time series of OLR (Outgoing Longwave Radiation) and OLR(sub CLR) (Clear Sky OLR) as determined using observations from CERES Terra and AIRS over the time period September 2002 through June 2011. Both AIRS and CERES show a significant decrease in global mean and tropical mean OLR over this time period. We find excellent agreement of the anomaly time-series of the two OLR data sets in almost every detail, down to 1 deg X 1 deg spatial grid point level. The extremely close agreement of OLR anomaly time series derived from observations by two different instruments implies that both sets of results must be highly stable. This agreement also validates to some extent the anomaly time series of the AIRS derived products used in the computation of the AIRS OLR product. The paper also examines the correlations of anomaly time series of AIRS and CERES OLR, on different spatial scales, as well as those of other AIRS derived products, with that of the NOAA Sea Surface Temperature (SST) product averaged over the NOAA Nino-4 spatial region.
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Keywords
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Anomalies
Aqua spacecraft
Atmospheric radiation
Atmospheric sounding
Ceres(Experiment)
Earth observations(From space)
Earth radiation budget
Earth radiation budget experiment
El nino
Long wave radiation
Terra spacecraft
Terrestrial radiation
Time series analysis
Tropical meteorology
Tropical regions
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Source Agency
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National Aeronautics and Space Administration
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NTIS Subject Category
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55C - Meteorological Data Collection, Analysis, & Weather Forecast
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Corporate Author
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Goddard Space Flight Center, Greenbelt, MD.
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Document Type
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Journal article
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Title Note
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N/A
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NTIS Issue Number
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1303
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Contract Number
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N/A
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