Physics – Geophysics
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3307812r&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 7, CiteID L07812
Physics
Geophysics
12
Atmospheric Composition And Structure: Cloud/Radiation Interaction, Biogeosciences: Climate Dynamics (1620), Exploration Geophysics: Data Processing, Global Change: Global Climate Models (3337, 4928), Global Change: Remote Sensing (1855)
Scientific paper
The projects ISCCP and GEWEX-SRB compute global data sets of radiation budget components at the top of the atmosphere and at the surface. Time series range from July 1983 to June 2001, and to October 1995, respectively. Comparing monthly averages over broader zones we find that the SRB underestimates the incident radiation at TOA by more than 2-5 Wm-2 over the tropics and up to 40 Wm-2 over polar regions. The ISCCP infrared radiation fluxes near the surface and at TOA, in particular over both polar zones, are higher than those of the SRB. Clouds in the ISCCP appear optically less effective than in the SRB. Interannual and month-to-month variations are observed indicating serious errors in ancillary data. Complete reprocessing is recommended. End products need validation within this large domain in space and time with correlated radiation budget measurements at TOA and at ground.
Bakan Stephan
Kinne Stefan
Raschke Ehrhard
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