DOI: 10.5194/tc-10-1433-2016
Scopus记录号: 2-s2.0-84978869437
论文题名: Glacier melting and precipitation trends detected by surface area changes in Himalayan ponds
作者: Salerno F ; , Thakuri S ; , Guyennon N ; , Viviano G ; , Tartari G
刊名: Cryosphere
ISSN: 19940416
出版年: 2016
卷: 10, 期: 4 起始页码: 1433
结束页码: 1448
语种: 英语
英文关键词: detection method
; glacier dynamics
; Landsat
; melting
; meltwater
; pond
; precipitation (climatology)
; satellite imagery
; shrinkage
; surface area
; time series
; Himalayas
; Khumbu Himal
; Mount Everest
英文摘要: Climatic time series for high-elevation Himalayan regions are decidedly scarce. Although glacier shrinkage is now sufficiently well described, the changes in precipitation and temperature at these elevations are less clear. This contribution shows that the surface area variations of unconnected glacial ponds, i.e. ponds not directly connected to glacier ice, but that may have a glacier located in their hydrological basin, can be considered as suitable proxies for detecting past changes in the main hydrological components of the water balance. On the south side of Mt Everest, glacier melt and precipitation have been found to be the main drivers of unconnected pond surface area changes (detected mainly with Landsat imagery). In general, unconnected ponds have decreased significantly by approximately 10±5 % in terms of surface area over the last 50 years (1963-2013 period) in the study region. Here, an increase in precipitation occurred until the mid-1990s followed by a decrease until recent years. Until the 1990s, glacier melt was constant. An increase occurred in the early 2000s, while a declining trend in maximum temperature has caused a reduction in the glacier melt during recent years. © Author(s) 2016. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75118
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: National Research Council, Water Research Institute (IRSA-CNR), Brugherio, Italy; National Research Council, Water Research Institute (IRSA-CNR), Rome, Italy; Ev-K2-CNR Committee, Via San Bernardino, 145, Bergamo, Italy
Recommended Citation:
Salerno F,, Thakuri S,, Guyennon N,et al. Glacier melting and precipitation trends detected by surface area changes in Himalayan ponds[J]. Cryosphere,2016-01-01,10(4)