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

被引：0

作者：

Chen, Tengfei ^{[1
,2
,3
,4
]}

Wang, Jian ^{[1
,5
]}

Che, Tao ^{[1
,5
]}

Hao, Xiaohua ^{[1
,5
]}

Li, Hongyi ^{[1
,4
,5
]}

机构：

[1] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Cryospher Sci & Frozen Soil Engn, Lanzhou 730000, Peoples R China

[2] Lanzhou Jiaotong Univ, Fac Geomat, Lanzhou 730000, Peoples R China

[3] Natl Geog State Monitoring, Natl Local Joint Engn Res Ctr Technol & Applicat N, Lanzhou 730000, Peoples R China

[4] Natl Geog State Monitoring, Gansu Prov Engn Lab, Lanzhou 730000, Peoples R China

[5] Chinese Acad Sci, Key Lab Remote Sensing Gansu Prov, Heihe Remote Sensing Expt Res Stn, Lanzhou 730000, Peoples R China

来源：

SCIENTIFIC DATA | 2024年 / 11卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ACCURACY ASSESSMENT; MOUNTAINS; IMPACTS;

D O I：

10.1038/s41597-024-03214-2

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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/km(2), 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.

引用

页数：16

共 37 条

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