首页|Modeling glacio-hydrological processes in the Himalayas:A review and future perspectives
Modeling glacio-hydrological processes in the Himalayas:A review and future perspectives
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
The Himalayas and their surrounding areas boast vast glaciers rivaling those in polar regions,supplying vital meltwater to the Indus,Ganges,and Brahmaputra rivers,supporting over a billion downstream inhabitants for drinking,power,and agriculture.With changing runoff patterns due to accelerated glacial melt,understanding and projecting glacio-hydrological processes in these basins is imperative.This review assesses the evolution,applications,and key challenges in diverse glacio-hydrology models across the Himalayas,varying in complexi-ties like ablation algorithms,glacier dynamics,ice avalanches,and permafrost.Previous findings indicate higher glacial melt contributions to annual runoff in the Indus compared to the Ganges and Brahmaputra,with antici-pated peak melting in the latter basins—having less glacier cover—before the mid-21 st century,contrasting with the delayed peak expected in the Indus Basin due to its larger glacier area.Different modeling studies still have large uncertainties in the simulated runoff components in the Himalayan basins;and the projections of future glacier melt peak time vary at different Himalaya sub-basins under different Coupled Model Intercom-parison Project(CMIP)scenarios.We also find that the lack of reliable meteorological forcing data(particularly the precipitation errors)is a major source of uncertainty for glacio-hydrological modeling in the Himalayan basins.Furthermore,permafrost degradation compounds these challenges,complicating assessments of future freshwater availability.Urgent measures include establishing comprehensive in situ observations,innovating remote-sensing technologies(especially for permafrost ice monitoring),and advancing glacio-hydrology models to integrate glacier,snow,and permafrost processes.These endeavors are crucial for informed policymaking and sustainable resource management in this pivotal,glacier-dependent ecosystem.
Glacio-hydrologyModelingHimalayasGlacier,snow,and permafrostSustainable development
Lei Wang、Hu Liu、Ranjeet Bhlon、Deliang Chen、Junshui Long、Tenzing C.Sherpa
展开 >
State Key Laboratory of Tibetan Plateau Earth System,Environment and Resources(TPESER),Institute of Tibetan Plateau Research,Chinese Academy of Sciences,Beijing 100101,China
University of Chinese Academy of Sciences,Beijing 100049,China
Regional Climate Group,Department of Earth Sciences,University of Gothenburg,Gothenburg,S-405 30(Box 460),Sweden
International Centre for Integrated Mountain Development Lalitpur 44700,Nepal
展开 >
国家自然科学基金国家自然科学基金Second Tibetan Plateau Scientific Expedition and Research Program(STEP)
NETL
NSTL
万方数据
