lmd_Laval2000.bib
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@article{2000JCli...13.4393D,
author = {{Ducharne}, A. and {Laval}, K.},
title = {{Influence of the Realistic Description of Soil Water-Holding Capacity on the Global Water Cycle in a GCM.}},
journal = {Journal of Climate},
year = 2000,
month = dec,
volume = 13,
pages = {4393-4413},
abstract = {{The sensitivity of the hydrological cycle to soil water-holding capacity
(WHC) is investigated using the Laboratoire de Meteorologie Dynamique
General Circulation Model (LMD GCM) coupled to a land surface model
(LSM). A reference simulation (REF), with WHCs equal to 150 mm globally
(except in deserts where it is set to 30 mm), is compared to two
perturbation simulations using datasets with realistic WHC
distributions:the `available WHC' (AWC) dataset is physically consistent
with the definition of WHC in the LSM and has a global average close to
150 mm; the `total WHC' (TWC) dataset is used as a secondary reference
for a large WHC increase (more than a doubling from 150 mm). The average
impact over land of the increase in WHC (from REF to both AWC and TWC)
is an increase in annual mean evaporation, split between increased
annual precipitation and decreased annual mean moisture convergence. The
regional responses, however, are more complex: precipitation increases
in summer over the midlatitude landmasses through the recycling of
increased evaporation; in the Tropics, moisture convergence and
precipitation decrease in the intertropical convergence zone and
precipitation increases in the surrounding areas, both behaviors being
related to the sensitivity of tropical convection to surface energy
fluxes in the LMD GCM.Two important conclusions arise from these
numerical results: first, the changes in the hydrological cycle are
driven through evaporation by the WHC changes realized in the
hydrologically active regions (continental midlatitude and tropical
rainbelts); second, WHC increase of 10\% to 20\% in the rainbelts induces
changes in the hydrologic cycle with similar patterns and almost the
same amplitude as changes resulting from an increase greater than 100\%.
These results are strongly conditioned to the land-atmosphere feedbacks,
which can only be allowed in a GCM environment.
}},
doi = {10.1175/1520-0442(2000)013<4393:IOTRDO>2.0.CO;2},
adsurl = {http://adsabs.harvard.edu/abs/2000JCli...13.4393D},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
@article{2000MWRv..128.3752S,
author = {{Sabre}, M. and {Hodges}, K. and {Laval}, K. and {Polcher}, J. and
{Désalmand}, F.},
title = {{Simulation of Monsoon Disturbances in the LMD GCM}},
journal = {Monthly Weather Review},
year = 2000,
month = may,
volume = 128,
pages = {3752},
doi = {10.1175/1520-0493(2001)129<3752:SOMDIT>2.0.CO;2},
adsurl = {http://adsabs.harvard.edu/abs/2000MWRv..128.3752S},
adsnote = {Provided by the SAO/NASA Astrophysics Data System}
}
