气候变化领域集成服务门户(CCPortal): Surface elevation changes of the tropical glaciers throughout Peru between 2000 and 2016

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.906211
	Surface elevation changes of the tropical glaciers throughout Peru between 2000 and 2016
	Seehaus; Thorsten; Malz; Philipp; Sommer; Christian; Braun; Matthias Holger
发布日期	2019-09-23
数据集类型	dataset
英文关键词	DEM ; elevation change ; geodetic mass balance ; SRTM ; TanDEM-X ; tropical glacier
英文简介	Glaciers in tropical regions are very sensitive to climatic variations and thus strongly affected by climate change. The majority of the tropical glaciers worldwide are located in the Peruvian Andes, which have shown significant ice loss in the last century. Here, we present the first multi-temporal, region-wide survey of geodetic mass balances throughout Peru covering the period 2000-2016. Using interferometric satellite SAR acquisitions, bi-temporal geodetic mass balances are derived. An average specific mass balance of -296±41 kg m-2 a-1 is found throughout Peru for the period 2000-2016. However, there are strong regional and temporal differences in the mass budgets ranging from 45±97 kg m-2 a-1 to -752±452 kg m-2 a-1. The ice loss increased towards the end of the observation period. Between 2013 and 2016, the average mass budget amounts to -660±178 kg m-2 a-1. The glacier changes revealed can be attributed to changes in the climatic settings in the study region, derived from ERA-Interim reanalysis data and the Oceanic Niño Index. The intense El Niño activities in 2015/16 are most likely the trigger for the increased change rates in the time interval 2013-2016. Our observations provide fundamental information on the current dramatic glacier changes for local authorities and for the calibration and validation of glacier change projections.
空间范围	Latitude: -8.000000 * Longitude: -76.000000
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215757
推荐引用方式 GB/T 7714	Seehaus,Thorsten,Malz,et al. Surface elevation changes of the tropical glaciers throughout Peru between 2000 and 2016.2019-09-23.https://doi.org/10.1594/PANGAEA.906211.