High spatial resolution elevation change dataset derived from ICESat-2 crossover points on the Tibetan Plateau

Tengfei Chen; Jian Wang; Tao Che; Xiaohua Hao; Hongyi Li

doi:10.1038/s41597-024-03214-2

High spatial resolution elevation change dataset derived from ICESat-2 crossover points on the Tibetan Plateau

Sci Data. 2024 Apr 17;11(1):394. doi: 10.1038/s41597-024-03214-2.

Authors

Tengfei Chen^{1

2

3

4}, Jian Wang^{1

5}, Tao Che^{1

5}, Xiaohua Hao^{1

5}, Hongyi Li^{6

7

8}

Affiliations

¹ Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China.
² Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou, 730000, China.
³ National-Local Joint Engineering Research Center of Technologies and Applications for National Geo-graphic State Monitoring, Lanzhou, 730000, China.
⁴ Gansu Provincial Engineering Laboratory for National Geographic State Monitoring, Lanzhou, 730000, China.
⁵ Heihe Remote Sensing Experimental Research Station, Key Laboratory of Remote Sensing of Gansu Province, Chinese Academy of Sciences, Lanzhou, 730000, China.
⁶ Key Laboratory of Cryospheric Science and Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, 730000, China. lihongyi@lzb.ac.cn.
⁷ Gansu Provincial Engineering Laboratory for National Geographic State Monitoring, Lanzhou, 730000, China. lihongyi@lzb.ac.cn.
⁸ Heihe Remote Sensing Experimental Research Station, Key Laboratory of Remote Sensing of Gansu Province, Chinese Academy of Sciences, Lanzhou, 730000, China. lihongyi@lzb.ac.cn.

Abstract

Understanding elevation changes on the Tibetan Plateau is crucial to comprehend the changes in topography, landscape, climate, environmental conditions, and water resources. However, some of the current products that track elevation changes only cover specific surface types or limited areas, and others have low spatial resolution. We propose an algorithm to extract ICESat-2 crossover points dataset for the Tibetan Plateau, and form a dataset. The crossover points dataset has a density of 2.015 groups/km², and each group of crossover points indicates the amount of change in elevation before and after a period of time over an area of approximately 17 meters in diameter. Comparing ICESat-2 crossover points data with existing studies on glaciers and lakes, we demonstrated the reliability of the derived elevation changes. The ICESat-2 crossover points provide a refined data source for understanding high-spatial-resolution elevation changes on the Tibetan Plateau. This dataset can provide validation data for various studies that require high-precision or high-resolution elevation change data on the Tibetan Plateau.

Publication types

Dataset