lmd_Li1998.bib
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@article{1998CRASE.326..677B,
author = {{Barthelet}, P. and {Bony}, S. and {Braconnot}, P. and {Braun}, A. and
{Cariolle}, D. and {Cohen-Solal}, E. and {Dufresne}, J.-L. and
{Delecluse}, P. and {Déqué}, M. and {Fairhead}, L. and
{Filiberti}, M.-A. and {Forichon}, M. and {Grandpeix}, J.-Y. and
{Guilyardi}, E. and {Hqussais}, M.-N. and {Imbard}, M. and {Le Treut}, H. and
{Lévy}, C. and {Xin Li}, Z. and {Madec}, G. and {Marquet}, P. and
{Marti}, O. and {Planton}, S. and {Terray}, L. and {Thual}, O. and
{Valcke}, S.},
title = {{Simulations couplées globales des changements climatiques associés {\`a} une augmentation de la teneur atmosphérique en CO $_{2}$}},
journal = {Comptes Rendus de l'Académie des Sciences - Series IIA - Earth and Planetary Science},
year = 1998,
month = may,
volume = 326,
pages = {677-684},
abstract = {{Two transient CO $_{2}$ experiments using two coupled general
circulation models developed by the French GASTON group have been
realized using the same methodology. No flux corrections at the air-sea
interface were used in these experiments. The main features of the
present climate are reasonably well captured by both coupled models in
the control simulations, although the biases are not the same, The
transient CO $_{2}$ simulations show a global warming, ranging
between 1.6 and 2.0 {\deg}C at the time of CO $_{2}$ doubling (+ 70
years). These values, and the main geographical characteristics of
climate change, are in agreement with previous studies published by
other research groups, using either flux corrected or non-flux corrected
models.
}},
doi = {10.1016/S1251-8050(98)80178-X},
adsurl = {http://adsabs.harvard.edu/abs/1998CRASE.326..677B},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{1998JCli...11.1673L,
author = {{Le Treut}, H. and {Forichon}, M. and {Boucher}, O. and {Li}, Z.-X.
},
title = {{Sulfate Aerosol Indirect Effect and CO$_{2}$ Greenhouse Forcing: EquilibriumResponse of the LMD GCM and Associated Cloud Feedbacks.}},
journal = {Journal of Climate},
year = 1998,
month = jul,
volume = 11,
pages = {1673-1684},
abstract = {{The climate sensitivity to various forcings, and in particular to
changes in CO$_{2}$ and sulfate aerosol concentrations, imposed
separately or in a combined manner, is studied with an atmospheric
general circulation model coupled to a simple slab oceanic model. The
atmospheric model includes a rather detailed treatment of warm cloud
microphysics and takes the aerosol indirect effects into account
explicitly, although in a simplified manner. The structure of the model
response appears to be organized at a global scale, with a partial
independence from the geographical structure of the forcing. Atmospheric
and surface feedbacks are likely to explain this feature. In particular
the cloud feedbacks play a very similar role in the CO$_{2}$ and
aerosol experiments, but with opposite sign. These results strengthen
the idea, already apparent from other studies, that, in spite of their
different nature and their different geographical and vertical
distributions, aerosol may have substantially counteracted the climate
effect of greenhouse gases, at least in the Northern Hemisphere, during
the twentieth century. When the effects of the two forcings are added,
the model response is not symmetric between the two hemispheres. This
feature is also consistent with the findings of other modeling groups
and has implications for the detection of future climate changes.
}},
doi = {10.1175/1520-0442(1998)011<1673:SAIEAC>2.0.CO;2},
adsurl = {http://adsabs.harvard.edu/abs/1998JCli...11.1673L},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{1998JApMe..37.1385C,
author = {{Chevallier}, F. and {Chéruy}, F. and {Scott}, N.~A. and
{Chédin}, A.},
title = {{A Neural Network Approach for a Fast and Accurate Computation of a Longwave Radiative Budget.}},
journal = {Journal of Applied Meteorology},
year = 1998,
month = nov,
volume = 37,
pages = {1385-1397},
abstract = {{The authors have investigated the possibility of elaborating a new
generation of radiative transfer models for climate studies based on the
neural network technique. The authors show that their neural
network-based model, NeuroFlux, can be used successfully for accurately
deriving the longwave radiative budget from the top of the atmosphere to
the surface. The reliable sampling of the earth's atmospheric situations
in the new version of the TIGR (Thermodynamic Initial Guess Retrieval)
dataset, developed at the Laboratoire de Météorologie
Dynamique, allows for an efficient learning of the neural networks. Two
radiative transfer models are applied to the computation of the
radiative part of the dataset: a line-by-line model and a band model.
These results have been used to infer the parameters of two neural
network-based radiative transfer codes. Both of them achieve an accuracy
comparable to, if not better than, the current general circulation model
radiative transfer codes, and they are much faster. The dramatic saving
of computing time based on the neural network technique (22 times faster
compared with the band model), 10$^{6}$ times faster compared with
the line-by-line model, allows for an improved estimation of the
longwave radiative properties of the atmosphere in general circulation
model simulations.
}},
doi = {10.1175/1520-0450(1998)037<1385:ANNAFA>2.0.CO;2},
adsurl = {http://adsabs.harvard.edu/abs/1998JApMe..37.1385C},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{1998A&AS..129..353L;,
author = {{Li}, Z.~X.},
title = {{Measurements of interannual variation of the vertical at Jozefoslaw by astrometric and gravimetric observations}},
journal = {\aaps},
keywords = {EARTH, REFERENCE SYSTEMS, ASTROMETRY},
year = 1998,
month = apr,
volume = 129,
pages = {353-355},
abstract = {{Jozefoslaw astronomical and geodetical observatory at Warsaw is the
place where parallel observations of astrometric latitude (since 1959)
and meridional plumb line variations from gravimetric methods (since
1976) have been carried out continuously over the past 20 years. The
observational data at this observatory have been analysed to confirm the
reality of the plumb line variation results derived from the astrometric
latitude residuals. Cross correlation analyses between the results of
the two techniques have demonstrated that the interannual plumb line
variations along the meridian detected by the astrometric technique is
in good accordance with those from the gravimetric technique. The
results shown in the paper can be considered as evidence of the
existence of non-tidal plumb line variations at interannual time scales,
of which the scale is about 0.02'' in the case of Jozefoslaw
observatory, and the possibility in measuring them by astrometric
techniques.
}},
doi = {10.1051/aas:1998190},
adsurl = {http://adsabs.harvard.edu/abs/1998A%26AS..129..353L},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
