Glacier and Hydrological Response to Climate Change in the Khumbu Valley, Nepal

尼泊尔昆布谷冰川和水文对气候变化的响应

• 批准号: 2705380
• 金额: --
• 依托单位: King's College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2705380
• 关键词: Glacier; Hydrological; Response; Climate; Change

Glaciers in High Mountain Asia supply freshwater to over 800 million people. However, glaciers can also present risk: high levels of runoff as well as glacial lake outbursts can cause floods, which take lives and destroy infrastructure, and are predicted to increase in the Himalaya-Karakoram region. The future extent of glaciers in High Mountain Asia is, however, highly uncertain, not least because we lack models of glacier melt that are simultaneously computationally tractable and physically realistic. How much meltwater runs off (versus being stored or re-frozen) is also not well understood. This project will address these critical research gaps by leveraging the new network of weather stations installed on Mt. Everest, which now spans the full elevation range of glaciers in High Mountain Asia. These data, along with satellite observations, will be used to improve physically realistic, yet parsimonious mass balance models for the Khumbu Glacier, Nepal. Findings from the Khumbu Valley case study can be upscaled to improve understanding of the Central Himalayan water tower.

亚洲高山的冰川为超过 8 亿人提供淡水。然而，冰川也可能带来风险：高水平的径流以及冰川湖溃决可能导致洪水，夺走生命并破坏基础设施，预计喜马拉雅-喀喇昆仑地区的洪涝灾害将会加剧。然而，亚洲高山冰川未来的范围高度不确定，尤其是因为我们缺乏计算上易于处理且物理上真实的冰川融化模型。有多少融水流失（相对于被储存或重新冻结）也不太清楚。该项目将利用珠穆朗玛峰上安装的新气象站网络来解决这些关键的研究空白，珠穆朗玛峰现已覆盖亚洲高山冰川的整个海拔范围。这些数据与卫星观测数据一起，将用于改进尼泊尔昆布冰川的物理现实但简约的质量平衡模型。昆布谷案例研究的结果可以扩大规模，以增进对喜马拉雅中部水塔的了解。