Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin

To investigate the simulation performance of the Community Land Model version 5 (CLM5) in simulating terrestrial evapotranspiration,this paper simulated the surface processes in the Pearl River Basin (PRB) from 1989 to 2018 with CLM5.For validation,the remote sensing-based GLEAM ET products were use...

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Main Author: WANG Dayang
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2022-01-01
Series:Renmin Zhujiang
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Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.02.008
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author WANG Dayang
author_facet WANG Dayang
author_sort WANG Dayang
collection DOAJ
description To investigate the simulation performance of the Community Land Model version 5 (CLM5) in simulating terrestrial evapotranspiration,this paper simulated the surface processes in the Pearl River Basin (PRB) from 1989 to 2018 with CLM5.For validation,the remote sensing-based GLEAM ET products were used as reference for the evaluation of the model's simulation performance.The evaluation was based on temporal variability analysis and spatial pattern analysis.The results show that CLM5 underestimates the evapotranspiration in the PRB to varying degrees,with the relative error of average annual evapotranspiration being -16.07% in the basin.The underestimation is mainly attributed to the underestimation of low evapotranspiration in the cold season. By contrast,CLM5 performs better in the simulation of high evapotranspiration in the warm season.Spatially,CLM5 has good performance in the southeast,south,and west of PRB,while poor performance in the northern PRB.This study can provide a guideline for the development of the evapotranspiration module in CLM5.
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spelling doaj-art-17cd4290f1bd42f58b7f397f09f3f3a92025-01-15T02:26:40ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352022-01-014347643867Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River BasinWANG DayangTo investigate the simulation performance of the Community Land Model version 5 (CLM5) in simulating terrestrial evapotranspiration,this paper simulated the surface processes in the Pearl River Basin (PRB) from 1989 to 2018 with CLM5.For validation,the remote sensing-based GLEAM ET products were used as reference for the evaluation of the model's simulation performance.The evaluation was based on temporal variability analysis and spatial pattern analysis.The results show that CLM5 underestimates the evapotranspiration in the PRB to varying degrees,with the relative error of average annual evapotranspiration being -16.07% in the basin.The underestimation is mainly attributed to the underestimation of low evapotranspiration in the cold season. By contrast,CLM5 performs better in the simulation of high evapotranspiration in the warm season.Spatially,CLM5 has good performance in the southeast,south,and west of PRB,while poor performance in the northern PRB.This study can provide a guideline for the development of the evapotranspiration module in CLM5.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.02.008land surface modelevapotranspirationCLM5GLEAMPearl River Basin
spellingShingle WANG Dayang
Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
Renmin Zhujiang
land surface model
evapotranspiration
CLM5
GLEAM
Pearl River Basin
title Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
title_full Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
title_fullStr Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
title_full_unstemmed Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
title_short Performance Evaluation of CLM5 in Simulating Evapotranspiration over Pearl River Basin
title_sort performance evaluation of clm5 in simulating evapotranspiration over pearl river basin
topic land surface model
evapotranspiration
CLM5
GLEAM
Pearl River Basin
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2022.02.008
work_keys_str_mv AT wangdayang performanceevaluationofclm5insimulatingevapotranspirationoverpearlriverbasin