lmd_Cheruy1991.bib
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@article{1991JGR....9622623C,
author = {{Cheruy}, F. and {Kandel}, R.~S. and {Duvel}, J.~P.},
title = {{Outgoing longwave radiation and its diurnal variations from combined Earth Radiation Budget Experiment and Meteosat observations :2. Using Meteosat data to determine the longwave diurnal cycle}},
journal = {\jgr},
keywords = {Meteorology and Atmospheric Dynamics: Climatology, Meteorology and Atmospheric Dynamics: Radiative processes, Meteorology and Atmospheric Dynamics: Tropical meteorology, Meteorology and Atmospheric Dynamics: Instruments and techniques},
year = 1991,
month = dec,
volume = 96,
pages = {22623},
abstract = {{For April and July 1985, applying the narrow to broadband conversion of
part 1 to Meteosat observations obtained at 3-hour intervals (ISCCP B2
data), we determine the monthly mean radiant exitance as well as the
mean diurnal variation, over 2.5{\deg}{\times}2.5{\deg} latitude-longitude
regions of tropical Africa and the neighboring Atlantic Ocean. We
compare these determinations with those obtained directly from the ERBS
and NOAA 9 Earth Radiation Budget Experiment (ERBE) data for this month,
for which the time sampling is sparser and not so uniform. Excellent
agreement is obtained in most cases, in particular for the overall
monthly means. However, for the monthly mean diurnal variation there are
situations in which the ERBE time sampling, the nature of the ERBE
diurnal modeling scheme and the convolution of weather system changes
with the diurnal cycle, combine to produce significant differences
between the ERBE determination and the Meteosat result. These
differences would mostly have been much smaller had the third ERBE
instrument package been in operation (at 0730/1930 LT) as originally
planned. We consider possible improvements in diurnal interpolation
procedures, but note that there is no general way to remove bias
resulting from inadequate time sampling.
}},
doi = {10.1029/91JD02154},
adsurl = {http://adsabs.harvard.edu/abs/1991JGR....9622623C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{1991JGR....9622611C,
author = {{Cheruy}, F. and {Kandel}, R.~S. and {Duvel}, J.~P.},
title = {{Outgoing longwave radiation and its diurnal variation from combined ERBE and Meteosat observations: 1. Estimating OLR from Meteosat data}},
journal = {\jgr},
keywords = {Meteorology and Atmospheric Dynamics: Climatology, Meteorology and Atmospheric Dynamics: Radiative processes, Meteorology and Atmospheric Dynamics: Tropical meteorology, Meteorology and Atmospheric Dynamics: Instruments and techniques},
year = 1991,
month = dec,
volume = 96,
pages = {22611},
abstract = {{Radiative transfer calculations show that measurements in two relatively
narrow spectral domains, corresponding to the atmospheric infrared
window and to a band of water vapor absorption, can account for nearly
all of the variance of outgoing longwave radiation integrated over the
entire thermal spectrum. Statistical analyses of simultaneous colocated
Meteosat radiance and Earth Radiation Budget Experiment (ERBE) radiant
exitance data, for the months of November 1984 and April and July 1985,
yield regression coefficients for estimating longwave radiant exitance
M$_{LW}$ from radiances observed in the Meteosat infrared (IR)
window and water vapor (WV) channels, with root-mean-square errors of
the order of or less than 10 W m$^{-2}$. The coefficients thus
obtained are in good agreement with coefficients relating
M$_{LW}$, IR and WV from analysis of results of radiative transfer
calculations. Meteosat data can then be used to estimate M$_{LW}$
at times not sampled by ERBE. Although some biases appear to exist over
areas of heterogeneous cloud cover, they should not significantly affect
studies of strong diurnal variations.
}},
doi = {10.1029/91JD02153},
adsurl = {http://adsabs.harvard.edu/abs/1991JGR....9622611C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{1991DyAtO..16...73C,
author = {{Cheruy}, F. and {Kandel}, R.~S.},
title = {{Use of meteosat data for validation of the diurnal variation of the outgoing longwave radiation produced by ERBE}},
journal = {Dynamics of Atmospheres and Oceans},
year = 1991,
month = oct,
volume = 16,
pages = {73-84},
abstract = {{Radiative transfer calculations have been performed to demonstrate the
usefulness of the Meteosat observations in the relative narrow-band of
the water vapour absorption (WV, 5.7-7.1 {$\mu$}m) in addition to the
observations in the atmospheric infrared window (IR, 10.5-12.5 {$\mu$}m) to
deduce the integrated thermal outgoing longwave radiation (OLR). A
statistical analysis of colocated and nearly simultaneous Meteosat and
the Earth Radiation Budget Experiment (ERBE) data has yielded regression
coefficients for estimating the OLR with Meteosat data during the months
of April and July 1985. These results have been used to study the mean
diurnal variation of the outgoing longwave radiation. The results show
that in some cases, because of inadequate time sampling, the form (and
especially the phase) of the longwave (LW) diurnal cycle is incorrectly
determined by ERBE, but that Meteosat data can improve the
determination. In nearly all cases, such errors have little or no
influence on the determination of monthly mean LW flux fields.
}},
doi = {10.1016/0377-0265(91)90013-6},
adsurl = {http://adsabs.harvard.edu/abs/1991DyAtO..16...73C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
