Modelling of melt and runoff in a basin with debris covered glacier parts in the upper Aksu catchment, northwest China

中国西北阿克苏流域上游有碎屑覆盖冰川部分的盆地融化和径流模拟

• 批准号: 100348997
• 负责人: Professor Dr. Wilfried Hagg
• 金额: --
• 依托单位: Cold and Arid Regions Environmental and Engineering Research Institute (CAREERI)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/100348997?language=en
• 关键词: Modelling; melt; runoff; basin; debris

Northwest China currently experiences a climate change with fundamental consequences forthe hydrological cycle. In the strongly arid region, glacier meltwater is essential for agricultureand food production. The vast distribution of supraglacial moraine is an importantglaciological feature of the region and has major impact on melt rates. It is essential tounderstand and quantify the interaction of climate and sub-debris melt in order to asses thecurrent situation and to predict future water yield. Within this project, a model will bedeveloped to reproduce ablation under moraine cover by combining an empirical and amorphological-statistical approach with remote sensing techniques. This model will beimplemented into an existing hydrological model, which will then be capable to simulaterunoff in catchments with debris covered glaciers parts. The runoff model will be calibratedwith observed hydrometeorological data. Subsequently, scenario runs for future climate andglaciation will allow to improve our understanding in climate-glacier-runoff interaction and todetermine changes in the hydrological cycle.

中国西北地区目前正经历着气候变化，对水文循环产生了根本性的影响。在严重干旱地区，冰川融水对农业和粮食生产至关重要。冰川上冰碛的广泛分布是该地区重要的冰川学特征，对冰川融化速度有重要影响。了解和量化气候与亚碎屑融化的相互作用对于评估现状和预测未来的水量至关重要。在这个项目中，将开发一个模型，通过结合经验和非定形统计方法与遥感技术来重现冰碛覆盖下的消融。该模型将被应用到现有的水文模型中，然后该模型将能够模拟冰川部分被碎片覆盖的集水区的径流。径流模型将用观测到的水文气象资料进行校准。随后，对未来气候和冰川的情景运行将有助于提高我们对气候-冰川-径流相互作用的理解，并确定水文循环的变化。

项目成果

Glacier and runoff changes in the Rukhk catchment, upper Amu-Darya basin until 2050

• DOI: 10.1016/j.gloplacha.2013.05.005
• 发表时间: 2013-11-01
• 期刊: GLOBAL AND PLANETARY CHANGE
• 影响因子: 3.9
• 作者: Hagg, Wilfried;Hoelzle, Martin;Klose, Zbynek
• 通讯作者: Klose, Zbynek

Calibrating a spatially distributed conceptual hydrological model using runoff, annual mass balance and winter mass balance

• DOI: 10.1016/j.jhydrol.2012.11.035
• 发表时间: 2013-01
• 期刊: Journal of Hydrology
• 影响因子: 6.4
• 作者: E. Mayr;W. Hagg;C. Mayer;L. Braun

Impact of varying debris cover thickness on catchment scale ablation: a case study for Koxkar glacier in the Tien Shan

• DOI: 10.5194/tcd-7-5307-2013
• 发表时间: 2013-11
• 期刊: The Cryosphere Discussions
• 作者: M. Juen;C. Mayer;A. Lambrecht;Han Hai-dong;L. Shiyin

Thermal properties of a supraglacial debris layer with respect to lithology and grain size

• DOI: 10.1111/geoa.12011
• 发表时间: 2013-09
• 期刊: Geografiska Annaler: Series A, Physical Geography
• 作者: M. Juen;C. Mayer;A. Lambrecht;A. Wirbel;U. Kueppers

Modeling runoff from the inylchek glaciers and filling of ice‐dammed lake merzbacher, central tian shan

模拟来自 inylchek 冰川的径流和中天山 Merzbacher 冰堰湖的充填

• DOI: 10.1111/geoa.12061
• 发表时间: 2014
• 期刊: Geografiska Annaler: Series A, Physical Geography
• 作者: Usubaliev;W. Hagg
• 通讯作者: W. Hagg