Canopy and Terrain Interactions Affecting Snowpack Spatial Patterns in the Sierra Nevada of California

doi:10.1029/2018WR023758

	Canopy and Terrain Interactions Affecting Snowpack Spatial Patterns in the Sierra Nevada of California
	Zheng, Zeshi ; Ma, Qin ; Jin, Shichao 2,3; Su, Yanjun 2; Guo, Qinghua2 ; Bales, Roger C.
	2019
发表期刊	WATER RESOURCES RESEARCH
ISSN	0043-1397
卷号	55 期号:11 页码:8721-8739
摘要	Airborne light detection and ranging is an emerging measurement tool for snowpack estimation, and data are now emerging to better assess multiscale snow depth patterns. We used airborne light detection and ranging measurements from four sites in the southern Sierra Nevada to determine how snow depth varies with canopy structure and the interactions between canopies and terrain. We processed the point clouds into snow depth rasters at 0.5x0.5-m(2) resolution and performed statistical analysis on the processed snow depth data, terrain attributes, and vegetation attributes, including the individual tree bole locations, canopy crown area, and canopy height. We studied the snow depth at such a fine scale due in part to the spatial heterogeneity introduced by canopy interception and enhanced melting caused by tree trunks in forested areas. We found that the dominant direction of a tree well, the area around the tree bole that has shallower snowpack, is correlated with the local aspect of the terrain, and the gradient of the snow surface in a tree well is correlated with the tree's crown area. The regression-tree based XGBoost model was fitted with the topographic variables and canopy variables, and about 71% of snow depth variability can be explained by the model.
学科领域	Environmental Sciences ; Limnology ; Water Resources
DOI	10.1029/2018WR023758
收录类别	SCI
语种	英语
WOS关键词	INCOMING LONGWAVE RADIATION ; BENEATH FOREST CANOPIES ; ACCUMULATION ; SNOWMELT ; INTERCEPTION ; POINT ; MELT ; VARIABILITY ; SENSITIVITY ; TOPOGRAPHY
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
WOS记录号	WOS:000495174700001
出版者	AMER GEOPHYSICAL UNION
文献子类	Article
出版地	WASHINGTON
EISSN	1944-7973
资助机构	UC Office of the President's Multi-Campus Research Programs and Initiatives through the UC Water Security and Sustainability Research Initiative [MR-15-328473, 13941] ; National Science Foundation (NSF) through the Southern Sierra Critical Zone Observatory (NSF)National Science Foundation (NSF) [1331939, 1239521]
作者邮箱	zeshi.z@berkeley.edu
作品OA属性	Green Published, Bronze
引用统计	被引频次：15[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/19823
专题	植被与环境变化国家重点实验室
作者单位	1.[Zheng, Zeshi; Bales, Roger C.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA 2.Ma, Qin; Su, Yanjun; Guo, Qinghua; Bales, Roger C.] Univ Calif, Sierra Nevada Res Inst, Merced, CA USA 3.Chinese Acad Sci, Inst Bot, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Zeshi,Ma, Qin,Jin, Shichao,et al. Canopy and Terrain Interactions Affecting Snowpack Spatial Patterns in the Sierra Nevada of California[J]. WATER RESOURCES RESEARCH,2019,55(11):8721-8739.
APA	Zheng, Zeshi,Ma, Qin,Jin, Shichao,Su, Yanjun,Guo, Qinghua,&Bales, Roger C..(2019).Canopy and Terrain Interactions Affecting Snowpack Spatial Patterns in the Sierra Nevada of California.WATER RESOURCES RESEARCH,55(11),8721-8739.
MLA	Zheng, Zeshi,et al."Canopy and Terrain Interactions Affecting Snowpack Spatial Patterns in the Sierra Nevada of California".WATER RESOURCES RESEARCH 55.11(2019):8721-8739.

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