利用ICESat-2光子计数激光测高技术重建青藏高原湖泊水深测量数据（2022年）

基于ICESat-2激光雷达测高仪数据及自仿射理论推导的经验方程，估算了2022年青藏高原面积大于0.01 km²的湖泊体积。研究发现模拟湖泊体积与实地测量值吻合良好，最大湖深的平均绝对百分比误差为8.0%，湖泊体积的平均绝对百分比误差为19.7%。据估算，2022年青藏高原面积大于0.01 km²的湖泊总...

Based on ICESat-2 laser altimeter data and the empirical equation derived from the self-affine theory, this study estimated the volumes of lakes with an area greater than 0.01 km² on the Qinghai-Tibet Plateau in 2022. The study found that the simulated lake volumes are in good agreement with the in-situ measured values, with the mean absolute percentage error (MAPE) of maximum lake depth being 8.0% and that of total lake volume being 19.7%. According to the estimation, the total... of lakes with an area greater than 0.01 km² on the Qinghai-Tibet Plateau in 2022...

搜集汇总

背景与挑战

背景概述

该数据集利用ICESat-2光子计数激光测高技术，基于自仿射理论推导的经验方程，重建了2022年青藏高原面积大于0.01 km²湖泊的水深测量数据，估算了湖泊体积和总蓄水量。数据集提供了高精度的湖泊水深信息，平均绝对百分比误差为19.7%，总蓄水量为1043.69±341.31 km³，其中约70%集中于内高原，为湖泊水量变化预测和水资源管理提供了重要数据支撑。