Hydrology of Glacierized Basins
Hydrology of Glacierized Basins
复制标题
DOI：
10.1002/0470848944.hsa174
复制
发表时间：
2006-04
期刊：
影响因子：
--
通讯作者：
I. Willis
中科院分区：
文献类型：
--
作者：
I. Willis
冰雪的存在以及植被和土壤的缺乏，使得冰川化盆地的水文与同等的非冰川化盆地的水文有很大的不同。本文讨论了冰川化盆地的特征如何控制其径流状况及其年际、年内和季节内的变化。还考虑了与积雪、冰层、冰川和冰下排水系统相关的季节性储水和释放的大小和模式。讨论了对冰川流域洪水的控制，具体涉及冰坝冰下湖和冰缘湖的灾难性排水，冰碛坝前冰湖，以及可能由高地表融化或暴雨引发的冰川/冰下排水网络的排水。最后，评估了气候变化对径流制度、储水和洪水的影响。强调了含不同热状态冰川的中、高、低纬度盆地水文状态的异同。关键词：气候变化；洪水;冰川;glacierised集雨;jokulhlaups;湖泊;径流政权;水平衡;水储存
The presence of snow and ice and the lack of vegetation and soil make the hydrology of glacierized basins very different to that of equivalent nonglacierized basins. This article discusses how the characteristics of glacierized basins control their runoff regime and its interannual, intraannual, and intraseasonal variability. The magnitudes and patterns of seasonal water storage and release associated with the snowpack, firn layers, and englacial and subglacial drainage systems are also considered. The controls on flooding in glacierized catchments are discussed with specific reference to the catastrophic drainage of ice-dammed subglacial and ice-marginal lakes, moraine-dammed proglacial lakes, and drainage of water from the englacial/subglacial drainage network that may be triggered by high surface melting or rainstorms. Finally, the effects of climate change on runoff regimes, water storage, and floods are assessed. The similarities and differences between the hydrological regimes of mid-, high-, and low-latitude basins containing glaciers with different thermal regimes are highlighted. Keywords: climate change; floods; glacier; glacierised catchments; jokulhlaups; lakes; runoff regime; water balance; water storage