Contribution potential of glaciers to water availability in different climate regimes

被引：523

作者：

Kaser, Georg ^{[1
]}

Grosshauser, Martin ^{[1
]}

Marzeion, Ben ^{[1
]}

机构：

[1] Univ Innsbruck, Inst Geog, A-6020 Innsbruck, Austria

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2010年 / 107卷 / 47期

基金：

奥地利科学基金会;

关键词：

CORDILLERA BLANCA; RUNOFF; DISCHARGE; BASINS;

D O I：

10.1073/pnas.1008162107

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Although reliable figures are often missing, considerable detrimental changes due to shrinking glaciers are universally expected for water availability in river systems under the influence of ongoing global climate change. We estimate the contribution potential of seasonally delayed glacier melt water to total water availability in large river systems. We find that the seasonally delayed glacier contribution is largest where rivers enter seasonally arid regions and negligible in the lowlands of river basins governed by monsoon climates. By comparing monthly glacier melt contributions with population densities in different altitude bands within each river basin, we demonstrate that strong human dependence on glacier melt is not collocated with highest population densities in most basins.

引用

页码：20223 / 20227

页数：5

共 26 条

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