气候变化领域集成服务门户(CCPortal): Constraining glacier elevation and mass changes in South America

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DOI	10.1038/s41558-018-0375-7
	Constraining glacier elevation and mass changes in South America
	Braun M.H.; Malz P.; Sommer C.; Farías-Barahona D.; Sauter T.; Casassa G.; Soruco A.; Skvarca P.; Seehaus T.C.
发表日期	2019
ISSN	1758678X
EISSN	1758-6798
卷号	9 期号:2 页码:130-+
英文摘要	Excluding the large ice sheets of Greenland and Antarctica, glaciers in South America are large contributors to sea-level rise1. Their rates of mass loss, however, are poorly known. Here, using repeat bi-static synthetic aperture radar interferometry over the years 2000 to 2011/2015, we compute continent-wide, glacier-specific elevation and mass changes for 85% of the glacierized area of South America. Mass loss rate is calculated to be 19.43 ± 0.60 Gt a−1 from elevation changes above ground, sea or lake level, with an additional 3.06 ± 1.24 Gt a−1 from subaqueous ice mass loss not contributing to sea-level rise. The largest contributions come from the Patagonian icefields, where 83% mass loss occurs, largely from dynamic adjustments of large glaciers. These changes contribute 0.054 ± 0.002 mm a−1 to sea-level rise. In comparison with previous studies2, tropical and out-tropical glaciers — as well as those in Tierra del Fuego — show considerably less ice loss. These results provide basic information to calibrate and validate glacier-climate models and also for decision-makers in water resource management3. © 2019, The Author(s), under exclusive licence to Springer Nature Limited.
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/92981
作者单位	Institut für Geographie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany; Centro de Investigación Gaia Antártica, Universidad de Magallanes, Punta Arenas, Chile; Dirección General de Aguas, Ministerio de Obras Públicas, Santiago, Chile; Instituto de Investigaciones Geológicas y del Medio Ambiente, Universidad Mayor de San Andrés, La Paz, Bolivia; Glaciarium, Centro de Interpretación de Glaciares, El Calafate, Argentina
推荐引用方式 GB/T 7714	Braun M.H.,Malz P.,Sommer C.,et al. Constraining glacier elevation and mass changes in South America[J],2019,9(2):130-+.
APA	Braun M.H..,Malz P..,Sommer C..,Farías-Barahona D..,Sauter T..,...&Seehaus T.C..(2019).Constraining glacier elevation and mass changes in South America.Nature Climate Change,9(2),130-+.
MLA	Braun M.H.,et al."Constraining glacier elevation and mass changes in South America".Nature Climate Change 9.2(2019):130-+.