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contributor authorZeng, Xubin
contributor authorShaikh, Muhammad
contributor authorDai, Yongjiu
contributor authorDickinson, Robert E.
contributor authorMyneni, Ranga
date accessioned2017-06-09T16:05:21Z
date available2017-06-09T16:05:21Z
date copyright2002/07/01
date issued2002
identifier issn0894-8755
identifier otherams-6065.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4201345
description abstractThe Common Land Model (CLM), which results from a 3-yr joint effort among seven land modeling groups, has been coupled with the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3). Two 15-yr simulations of CCM3 coupled with CLM and the NCAR Land Surface Model (LSM), respectively, are used to document the relative impact of CLM versus LSM on land surface climate. It is found that CLM significantly reduces the summer cold bias of surface air temperature in LSM, which is associated with higher sensible heat fluxes and lower latent heat fluxes in CLM, and the winter warm bias over seasonally snow-covered regions, especially in Eurasia. CLM also significantly improves the simulation of the annual cycle of runoff in LSM. In addition, CLM simulates the snow mass better than LSM during the snow accumulation stage. These improvements are primarily caused by the improved parameterizations in runoff, snow, and other processes (e.g., turbulence) in CLM. The new land boundary data (e.g., leaf-area index, fractional vegetation cover, albedo) also contribute to the improvement in surface air temperature simulation over some regions. Overall, CLM has little impact on precipitation and surface net radiative fluxes.
publisherAmerican Meteorological Society
titleCoupling of the Common Land Model to the NCAR Community Climate Model
typeJournal Paper
journal volume15
journal issue14
journal titleJournal of Climate
identifier doi10.1175/1520-0442(2002)015<1832:COTCLM>2.0.CO;2
journal fristpage1832
journal lastpage1854
treeJournal of Climate:;2002:;volume( 015 ):;issue: 014
contenttypeFulltext


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