Evaluation of global terrestrial evapotranspiration in CMIP6 models

doi:10.1007/s00704-020-03437-4

	Evaluation of global terrestrial evapotranspiration in CMIP6 models
	Wang, Zhizhen 1,2; Zhan, Chesheng 1; Ning, Like 1; Guo, Hai 1,2
刊名	THEORETICAL AND APPLIED CLIMATOLOGY
	2020-10-26
页码	11
ISSN号	0177-798X
DOI	10.1007/s00704-020-03437-4
通讯作者	Zhan, Chesheng(zhancs@igsnrr.ac.cn)
英文摘要	Evapotranspiration (ET), which relates to hydrology and the energy cycle process of land surface, is a key link of the water cycle and an important item of expenditure in energy balance. There have been multiple state-of-the-art climate models that were included in Phase 6 of the Coupled Model Intercomparison Project (CMIP6), but the performance in estimating the ET of the models is still unclear. Thus, this study evaluated the global terrestrial ET of CMIP6 models. The performance of the models and CMIP6 ensemble mean was compared with the GLEAM v3.3a dataset, and the uncertainties of the ensemble were evaluated using the signal-to-noise ratio (SNR). The results show that there was no perfect model that could perform optimally in all aspects of the comparison, and the performance of the CMIP6 ensemble was better than that of a single model. MIROC6, CESM2, and EC-Earth3 performed satisfactorily in some aspects, whereas the performance was poor in other aspects. GFDL-ESM4 exhibited a relatively poor performance. Most models and the CMIP6 ensemble overestimated ET, and the estimations of different models varied greatly, but the results of most models showed an increasing trend. The CMIP6 ensemble overestimated ET in most regions of the world and may have smoothened the variation in the model estimations. In high latitudes such as northern parts of North America and Eurasia, results of the CMIP6 ensemble and GLEAM were approximately the same. The uncertainty of the CMIP6 ensemble was generally low and the estimation reliability varied according to the geographical region.
资助项目	National Key R&D Program of China[2017YFA0603702] ; National Natural Science Foundation of China[41701023]
WOS关键词	EARTH SYSTEM MODEL ; LAND EVAPORATION ; PRECIPITATION ; CLIMATE ; MOISTURE ; PROJECT ; VERSION ; BASIN ; CYCLE
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000583977000001
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156807]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhan, Chesheng
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhizhen,Zhan, Chesheng,Ning, Like,et al. Evaluation of global terrestrial evapotranspiration in CMIP6 models[J]. THEORETICAL AND APPLIED CLIMATOLOGY,2020:11.
APA	Wang, Zhizhen,Zhan, Chesheng,Ning, Like,&Guo, Hai.(2020).Evaluation of global terrestrial evapotranspiration in CMIP6 models.THEORETICAL AND APPLIED CLIMATOLOGY,11.
MLA	Wang, Zhizhen,et al."Evaluation of global terrestrial evapotranspiration in CMIP6 models".THEORETICAL AND APPLIED CLIMATOLOGY (2020):11.