长江源区冰川质量变化与区域环境气候变化密切相关，直接影响长江流域水资源补给问题，甚至对中国水资源安全问题产生重大影响。因此，研究长江源区冰川质量变化及其对水资源影响，以及对长江流域水资源未来演变进行准确可靠的量化评估和预测，具有重要的科学意义和维护水资源安全的现实意义。本项目拟深入研究长江源区冰川质量变化及长江流域水储量变化的探测新方法，联合多源卫星观测数据（地球探测任务SWARM、重力探测卫星GRACE、合成孔径干涉雷达测高卫星CryoSat-2、激光测高卫星ICESat及遥感影像Landsat 7等），地面水文和气候观测站数据，揭示长江源区近16年冰川质量变化及长江流域水储量变化规律，给出其间统计相关性和中长期变化趋势的量化分析结果，并基于小波人工神经网络模型，对该地区未来水储量的演变作出推断和预警，为今后建立长江源区冰川及长江流域水储量变化立体监测系统提供有效的新技术集成。

The glaciers mass change of the Yangtze River’s source region (YRSR) is closely related to the regional climate and environment change, which has directly an influence on water resources supply in the Yangtze River basin (YRB), even affected the security of China water resources issues. Therefore, it has an important scientific and practical meaning of safeguard water security for research on the glaciers mass change in the YRSR and its effects on the water resource, reliable and accurate quantitative assessment and prediction on the future evolution of the Yangtze River water resources quantity. This project will be deeply researched on the new detected method to derive the glaciers mass change in the YRSR and water storage change in the YRB, combined with multi-source satellite observations data (included the European Space Agency earth explorer mission SWARM, Gravity Recovery and Climate Experiment mission GRACE, SAR Interferometric Radar Altimeter CryoSat-2, Laser Altimeter ICESat, Remote Sensing Images Landsat-7, and so on), in-situ hydrological and weather stations data, revealed the rate rule of the YRSR glaciers mass change and YRB water storage change during the recent 16 years, presented the quantitative analysis results of the statistical correlation and the long-term trends between the YRSR glaciers mass change and YRB water storage change, moreover, based on the wavelet artificial neural network model (WANN), deduced and early warning on the evolution of future water reserves in the YRB, and provided new techniques and integration for setting up three-dimensional monitoring system for glaciers in YRSR and water storage change in YRB in the future.