Radiative fluxes - SW
in developing information on radiative fluxes: 1) obtain information
at longer time scales to match the period of heat flux estimates;
2) obtain the best available information. The following steps were
and evaluate long term estimates using historical satellite data. Used are
various International Satellite Cloud Climatology Project (ISCCP)
data with updated schemes for improved treatment of aerosols.
2. Produce and evaluate shorter term estimates using observations
from improved satellite systems such as MODIS on Terra and Aqua and
the SEVIRI on METEOSAT-8 to establish limits on the accuracy of the
The year 2004 was selected since both METEOSAT-7 (a 3 channel instrument)
and METEOSAT-8 (a 12 channel instrument) were simultaneously operational.
METEOSAT-7 provides the link to the long term data sets (ISCCP D1
and DX). Data from MODIS are produced for the entire 3-year period.
The longwave strategy
followed the shortwave one, namely, fluxes were produced both from
the ISCCP DX and MODIS observations but not from METEOSAT-8.
Mean Radiative Fluxes derived from ISCCP DX during Jan
3-Jan 9, 2005 for (a) Downward SW (b) Downward LW|
Net SW and net LW data
sets have been produced and total net radiative fluxes were computed
and are provided at this web site.
Mean Radiative Net Fluxes derived
from ISCCP DX during Jan 3-Jan 9, 2005
for (a) Net SW (b) Net LW|
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