气候变化领域集成服务门户(CCPortal): Characterizing Surface Albedo of Shallow Fresh Snow and Its Importance for Snow Ablation on the Interior of the Tibetan Plateau

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DOI	10.1175/JHM-D-19-0193.1
	Characterizing Surface Albedo of Shallow Fresh Snow and Its Importance for Snow Ablation on the Interior of the Tibetan Plateau
	Wang, Wenli; Yang, Kun; Zhao, Long; Zheng, Ziyan; Lu, Hui; Mamtimin, Ali; Ding, Baohong; Li, Xin; Zhao, Lin; Li, Hongyi; Che, Tao; Moore, John C.
发表日期	2020
ISSN	1525-755X
EISSN	1525-7541
起始页码	815
结束页码	827
卷号	21 期号:4
英文摘要	Snow depth on the interior of Tibetan Plateau (TP) in state-of-the-art reanalysis products is almost an order of magnitude higher than observed. This huge bias stems primarily from excessive snowfall, but inappropriate process representation of shallow snow also causes excessive snow depth and snow cover. This study investigated the issue with respect to the parameterization of fresh snow albedo. The characteristics of TP snowfall were investigated using ground truth data. Snow in the interior of the TP is usually only some centimeters in depth. The albedo of fresh snow depends on snow depth, and is frequently less than 0.4. Such low albedo values contrast with the high values (similar to 0.8) used in the existing snow schemes of land surface models. The SNICAR radiative transfer model can reproduce the observations that fresh shallow snow has a low albedo value, based on which a fresh snow albedo scheme was derived in this study. Finally, the impact of the fresh snow albedo on snow ablation was examined at 45 meteorological stations on TP using the land surface model Noah-MP which incorporated the new scheme. Allowing albedo to change with snow depth can produce quite realistic snow depths compared with observations. In contrast, the typically assumed fresh snow albedo of 0.82 leads to too large snow depths in the snow ablation period averaged across 45 stations. The shallow snow transparency impact on snow ablation is therefore particularly important in the TP interior, where snow is rather thin and radiation is strong.
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS关键词	SCATTERING ; MODEL ; PARAMETERIZATION ; CARBON ; COVER ; DEPTH ; GCMS
WOS记录号	WOS:000590001700001
来源期刊	JOURNAL OF HYDROMETEOROLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/241067
作者单位	[Wang, Wenli; Yang, Kun; Lu, Hui] Tsinghua Univ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing, Peoples R China; [Zhao, Long] Southwest Univ, Sch Geog Sci, Chongqing, Peoples R China; [Zheng, Ziyan] Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Res East Asia, Beijing, Peoples R China; [Mamtimin, Ali] China Meteorol Adm, Inst Desert Meteorol, Urumqi, Peoples R China; [Ding, Baohong; Li, Xin] Chinese Acad Sci, Natl Tibetan Plateau Data Ctr, Inst Tibetan Plateau Res, Beijing, Peoples R China; [Yang, Kun; Li, Xin] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China; [Zhao, Lin] Nanjing Univ Informat Sci & Technol, Sch Geog Sci, Nanjing, Peoples R China; [Li, Hongyi; Che, Tao] Chinese Acad Sci, Heihe Remote Sensing Expt Stn, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Peoples R China; [Moore, John C.] Beijing Normal Univ, Coll Global Change & Earth Syst Sci, Beijing, Peoples R China; [Moore, Joh...
推荐引用方式 GB/T 7714	Wang, Wenli,Yang, Kun,Zhao, Long,et al. Characterizing Surface Albedo of Shallow Fresh Snow and Its Importance for Snow Ablation on the Interior of the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2020,21(4).
APA	Wang, Wenli.,Yang, Kun.,Zhao, Long.,Zheng, Ziyan.,Lu, Hui.,...&Moore, John C..(2020).Characterizing Surface Albedo of Shallow Fresh Snow and Its Importance for Snow Ablation on the Interior of the Tibetan Plateau.JOURNAL OF HYDROMETEOROLOGY,21(4).
MLA	Wang, Wenli,et al."Characterizing Surface Albedo of Shallow Fresh Snow and Its Importance for Snow Ablation on the Interior of the Tibetan Plateau".JOURNAL OF HYDROMETEOROLOGY 21.4(2020).