冰川厚度与储量是未来冰川变化预测、可用淡水资源估计以及潜在海平面上升评估等冰 川学研究的前提。基于我国西部31 条冰川实测探地雷达厚度数据对GlabTop2 冰厚模型进行参数 校正和优化，模拟羌塘高原冰川厚度分布并评估冰川水资源总量，结果表明：①GlabTop2 模型模拟 的冰川平均厚度与实测平均厚度较接近，两者相关性为0.87，RMSE 为18.2 m，模型对冰川厚度的 高估和低估分别为9% 和-17%，模型模拟冰川中流线基岩地形形状的能力优于剖面基岩形状； ②2022 年羌塘高原冰川储量为（177.6±26.6） km³，平均冰川厚度为（88.2±12.3）m，冰储量集中分布 在5 600~6 200 m，为（148.28±22.24）km³，占整个羌塘高原冰川总储量的84.4%，其余高程带冰储量 分布相对较少。

Abstract：Ice thickness and storage are the prerequisites for glaciological studies such as predicting future glacier changes, estimating available freshwater resources, and assessing potential sea level rise. Based on ground-penetrating radar (GPR) thickness data from 31 glaciers in western China, parameters of the GlabTop 2 (Glacier Bed Topography) model was calibrated and optimized. The simulation of ice thickness on the Qiangtang Plateau and the assessment of the total amount of glacier water resources reveal the following results: ①The average ice thickness simulated by the GlabTop2 model closely matches the measured average thickness, with a correlation of 0.87 and an RMSE of 18.2 m. Overestimation and underestimation of ice thickness by the model are 9% and -17% respectively. The ice thickness distribution along flow is better captured than the distribution across flow; ②The GlabTop2 model estimates that the ice storage of glaciers on the Qinghai-Xizang Plateau in 2022 is (177.6±26.6) km3, with an average ice thickness of (88.2±12.3) m. The glacier volume is mainly distributed between 5 600 and 6 200 m, amounting to (148.28±22.24) km3, which accounts for 84.4% of the total glacier volume of the Qiangtang Plateau. The glacier volume in other elevation bands is relatively small.