Treatment of Undercanopy Turbulence in Land ModelsSource: Journal of Climate:;2005:;volume( 018 ):;issue: 023::page 5086Author:Zeng, Xubin
,
Barlage, Michael
,
Dickinson, Robert E.
,
Dai, Yongjiu
,
Wang, Guiling
,
Oleson, Keith
DOI: 10.1175/JCLI3595.1Publisher: American Meteorological Society
Abstract: In arid and semiarid regions most of the solar radiation penetrates through the canopy and reaches the ground, and hence the turbulent exchange coefficient under canopy Cs becomes important. The use of a constant Cs that is only appropriate for thick canopies is found to be primarily responsible for the excessive warm bias of around 10 K in monthly mean ground temperature over these regions in version 2 of the Community Climate System Model (CCSM2). New Cs formulations are developed for the consistent treatment of undercanopy turbulence for both thick and thin canopies in land models, and provide a preliminary solution of this problem.
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contributor author | Zeng, Xubin | |
contributor author | Barlage, Michael | |
contributor author | Dickinson, Robert E. | |
contributor author | Dai, Yongjiu | |
contributor author | Wang, Guiling | |
contributor author | Oleson, Keith | |
date accessioned | 2017-06-09T17:01:18Z | |
date available | 2017-06-09T17:01:18Z | |
date copyright | 2005/12/01 | |
date issued | 2005 | |
identifier issn | 0894-8755 | |
identifier other | ams-78068.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4220696 | |
description abstract | In arid and semiarid regions most of the solar radiation penetrates through the canopy and reaches the ground, and hence the turbulent exchange coefficient under canopy Cs becomes important. The use of a constant Cs that is only appropriate for thick canopies is found to be primarily responsible for the excessive warm bias of around 10 K in monthly mean ground temperature over these regions in version 2 of the Community Climate System Model (CCSM2). New Cs formulations are developed for the consistent treatment of undercanopy turbulence for both thick and thin canopies in land models, and provide a preliminary solution of this problem. | |
publisher | American Meteorological Society | |
title | Treatment of Undercanopy Turbulence in Land Models | |
type | Journal Paper | |
journal volume | 18 | |
journal issue | 23 | |
journal title | Journal of Climate | |
identifier doi | 10.1175/JCLI3595.1 | |
journal fristpage | 5086 | |
journal lastpage | 5094 | |
tree | Journal of Climate:;2005:;volume( 018 ):;issue: 023 | |
contenttype | Fulltext |