globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-18-4077-2014
Scopus记录号: 2-s2.0-84907993687
论文题名:
Early 21st century snow cover state over the western river basins of the Indus River system
作者: Hasson S; , Lucarini V; , Khan M; R; , Petitta M; , Bolch T; , Gioli G
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2014
卷: 18, 期:10
起始页码: 4077
结束页码: 4100
语种: 英语
Scopus关键词: Indus River ; River basins ; Snow covers ; Aqua (satellite) ; Landsat thematic mapper ; MODIS ; North Atlantic Oscillation ; river basin ; river system ; snow cover ; streamflow ; Terra (satellite) ; twenty first century ; Afghanistan ; China ; India ; Indus River ; Pakistan
英文摘要: In this paper we assess the snow cover and its dynamics for the western river basins of the Indus River system (IRS) and their sub-basins located in Afghanistan, China, India and Pakistan for the period 2001-2012. First, we validate the Moderate Resolution Imaging Spectroradiometer (MODIS) daily snow products from Terra (MOD10A1) and Aqua (MYD10A1) against the Landsat Thematic Mapper/Enhanced Thematic Mapper plus (TM/ETM+) data set, and then improve them for clouds by applying a validated non-spectral cloud removal technique. The improved snow product has been analysed on a seasonal and annual basis against different topographic parameters (aspect, elevation and slope). Our results show a decreasing tendency for the annual average snow cover for the westerlies-influenced basins (upper Indus basin (UIB), Astore, Hunza, Shigar and Shyok) and an increasing tendency for the monsoon-influenced basins (Jhelum, Kabul, Swat and Gilgit). Seasonal average snow cover decreases during winter and autumn, and increases during spring and summer, which is consistent with the observed cooling and warming trends during the respective seasons. Sub-basins at relatively higher latitudes/altitudes show higher variability than basins at lower latitudes/middle altitudes. Northeastern and northwestern aspects feature greater snow cover. The mean end-of-summer regional snow line altitude (SLA) zones range from 3000 to 5000ma.s.l. for all basins. Our analysis provides an indication of a descending end-of-summer regional SLA zone for most of the studied basins, which is significant for the Shyok and Kabul basins, thus indicating a change in their water resources. Such results are consistent with the observed hydro-climatic data, recently collected local perceptions and glacier mass balances for the investigated period within the UIB. Moreover, our analysis shows a significant correlation between winter season snow cover and the North Atlantic Oscillation (NAO) index of the previous autumn. Similarly, the inter-annual variability of spring season snow cover and spring season precipitation explains well the interannual variability of the summer season discharge from most of the basins. These findings indicate some potential for the seasonal stream flow forecast in the region, suggesting snow cover as a possible predictor. © Author(s) 2014.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78108
Appears in Collections:气候变化事实与影响

Files in This Item:

There are no files associated with this item.


作者单位: Centre for Earth System Research and Sustainability, Meteorological Institute, University of Hamburg, Hamburg, Germany; Centre for Earth System Research and Sustainability, Institute for Geography, University of Hamburg, Hamburg, Germany; Department of Geo-informatics, PMAS-Arid Agriculture University, Rawalpindi, Pakistan; Department of Mathematics and Statistics, University of Reading, Reading, United Kingdom; Institute for Applied Remote Sensing, EURAC, Bolzano/Bozen, Italy; Department of Geography, University of Zurich, Zurich, Switzerland; Institute for Cartography, Technische Universität Dresden, Dresden, Germany

Recommended Citation:
Hasson S,, Lucarini V,, Khan M,et al. Early 21st century snow cover state over the western river basins of the Indus River system[J]. Hydrology and Earth System Sciences,2014-01-01,18(10)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Hasson S]'s Articles
[, Lucarini V]'s Articles
[, Khan M]'s Articles
百度学术
Similar articles in Baidu Scholar
[Hasson S]'s Articles
[, Lucarini V]'s Articles
[, Khan M]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Hasson S]‘s Articles
[, Lucarini V]‘s Articles
[, Khan M]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.