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

doi:10.1029/2018WR023758

CORC > 植物研究所 > 中国科学院植物研究所 > 植被与环境变化国家重点实验室

	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, Qinghua 2; Bales, Roger C.
刊名	WATER RESOURCES RESEARCH
	2019
卷号	55 期号:11 页码:8721-8739
ISSN号	0043-1397
DOI	10.1029/2018WR023758
文献子类	Article
英文摘要	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.
学科主题	Environmental Sciences ; Limnology ; Water Resources
电子版国际标准刊号	1944-7973
出版地	WASHINGTON
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
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000495174700001
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]
内容类型	期刊论文
源URL	[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.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 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.[Zheng, Zeshi; Bales, Roger C.] Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA
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.