气候变化领域集成服务门户(CCPortal): Evaluating biases in simulated land surface albedo from CMIP5 global climate models

CCPortal

DOI	10.1002/2016JD024774
	Evaluating biases in simulated land surface albedo from CMIP5 global climate models
	Li, Yue; Wang, Tao; Zeng, Zhenzhong; Peng, Shushi; Lian, Xu; Piao, Shilong
通讯作者	Piao, SL (通讯作者)
发表日期	2016
ISSN	2169-897X
EISSN	2169-8996
起始页码	6178
结束页码	6190
卷号	121 期号:11
英文摘要	Land surface albedo is a key parameter affecting energy balance and near-surface climate. In this study, we used satellite data to evaluate simulated surface albedo in 37 models participating in the Coupled Model Intercomparison Project Phase 5 (CMIP5). There was a systematic overestimation in the simulated seasonal cycle of albedo with the highest bias occurring during the Northern Hemisphere's winter months. The bias in surface albedo during the snow-covered season was classified into that in snow cover fraction (SCF) and albedo contrast (beta(1)). There was a general overestimation of beta(1) due to the simulated snow-covered albedo being brighter than the observed value; negative biases in SCF were not always related to negative albedo biases, highlighting the need for realistic representation of snow-covered albedo in models. In addition, models with a lower leaf area index (LAI) tend to produce a higher surface albedo over the boreal forests during the winter, which emphasizes the necessity of improving LAI simulations in CMIP5 models. Insolation weighting showed that spring albedo biases were of greater importance for climate. The removal of albedo biases is expected to improve temperature simulations particularly over high-elevation regions.
关键词	SNOW COVER FEEDBACK EVAPOTRANSPIRATION VARIABILITY FORESTS SPREAD 1ST
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000381631700004
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258709
推荐引用方式 GB/T 7714	Li, Yue,Wang, Tao,Zeng, Zhenzhong,et al. Evaluating biases in simulated land surface albedo from CMIP5 global climate models[J]. 中国科学院青藏高原研究所,2016,121(11).
APA	Li, Yue,Wang, Tao,Zeng, Zhenzhong,Peng, Shushi,Lian, Xu,&Piao, Shilong.(2016).Evaluating biases in simulated land surface albedo from CMIP5 global climate models.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,121(11).
MLA	Li, Yue,et al."Evaluating biases in simulated land surface albedo from CMIP5 global climate models".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 121.11(2016).