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DOI	10.1017/jog.2022.6
	Empirical glacier mass-balance models for South America
	Mutz, Sebastian G.; Aschauer, Johannes
通讯作者	Mutz, SG (corresponding author)，Univ Tubingen, Dept Geosci, Tubingen, Germany.
来源期刊	JOURNAL OF GLACIOLOGY
ISSN	0022-1430
EISSN	1727-5652
出版年	2022-02
英文摘要	We investigate relationships between synoptic-scale atmospheric variability and the mass-balance of 13 Andean glaciers (located 16-55 degrees S) using Pearson correlation coefficients (PCCs) and multiple regressions. We then train empirical glacier mass-balance models (EGMs) in a cross-validated multiple regression procedure for each glacier. We find four distinct glaciological zones with regard to their climatic controls: (1) The mass-balance of the Outer Tropics glaciers is linked to temperature and the El Nino-Southern Oscillation (PCC <= 0.6), (2) glaciers of the Desert Andes are mainly controlled by zonal wind intensity (PCC <= 0.9) and the Antarctic Oscillation (PCC <= 0.6), (3) the mass-balance of the Central Andes glaciers is primarily correlated with precipitation anomalies (PCC <= 0.8), and (4) the glacier of the Fuegian Andes is controlled by winter precipitation (PCC approximate to 0.7) and summer temperature (PCC approximate to -0.9). Mass-balance data in the Lakes District and Patagonian Andes zones, where most glaciers are located, are too sparse for a robust detection of synoptic-scale climatic controls. The EGMs yield R-2 values of similar to 0.45 on average and <= 0.74 for the glaciers of the Desert Andes. The EGMs presented here do not consider glacier dynamics or geometry and are therefore only suitable for short-term predictions.
英文关键词	Climate change glacier mass-balance glacier modelling mountain glaciers
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000757695800001
WOS关键词	JUNCAL NORTE GLACIER ; ENERGY-BALANCE ; CORDILLERA BLANCA ; ANDES CORDILLERA ; TROPICAL CLIMATE ; SEMIARID ANDES ; ICE THICKNESS ; ZONGO GLACIER ; EVOLUTION ; ALTITUDE
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377264
作者单位	[Mutz, Sebastian G.; Aschauer, Johannes] Univ Tubingen, Dept Geosci, Tubingen, Germany
推荐引用方式 GB/T 7714	Mutz, Sebastian G.,Aschauer, Johannes. Empirical glacier mass-balance models for South America[J],2022.
APA	Mutz, Sebastian G.,&Aschauer, Johannes.(2022).Empirical glacier mass-balance models for South America.JOURNAL OF GLACIOLOGY.
MLA	Mutz, Sebastian G.,et al."Empirical glacier mass-balance models for South America".JOURNAL OF GLACIOLOGY (2022).