中国科学数据（中英文网络版）2025，Vol.10Issue(2)：81-93,13.DOI:10.11922/11-6035.csd.2024.0103.zh
2000-2022年青藏高原IRSEI指数数据集
Improved remote sensing ecological index dataset of the Qinghai-Tibet Plateau from 2000 to 2022
摘要
Abstract
The Qinghai-Tibet Plateau,long recognized as an ecological barrier for biodiversity and water cycling,also serves as a sensitive indicator of global climate change.Its intricate terrain and fragile ecosystem have faced escalating challenges in recent decades,driven by intensified human activities and the impacts of a changing climate.Accurately assessing the plateau's ecological health is essential for developing a comprehensive understanding of its environmental dynamics.Based on multiple MODIS datasets,four indicators including NDVI,LST,WET,and NDBSI were selected,and a Principal Component Analysis(PCA)method was employed to generate an improved remote sensing ecological index(IRSEI)dataset spanning the years 2000-2022,with a spatial resolution of 500 meters.Notably,the RSEI calculation method was refined to enhance its temporal comparability,facilitating long-term monitoring of the region's ecological well-being.The dataset underwent water and snow masking to eliminate the influence of water bodies and snow.The spatial distribution of the IRSEI was validated against a land use dataset,and the results demonstrated a high degree of consistency between the IRSEI data distribution and the land use types on the Qinghai-Tibet Plateau.This dataset can serve as a theoretical basis and scientific support for the sustainable management and development of the Qinghai-Tibet Plateau,contributing to its high-quality development.关键词
青藏高原/生态质量/改进型遥感生态指数/时空格局Key words
Qinghai-Tibet Plateau/ecological quality/improved remote sensing ecological index/spatiotemporal variation引用本文复制引用
温春晖,龙腾飞..2000-2022年青藏高原IRSEI指数数据集[J].中国科学数据（中英文网络版）,2025,10(2):81-93,13.基金项目
第二次青藏高原科学考察和研究计划(2019QZKK030701) The Second Tibetan Plateau Scientific Expedition and Research Program(STEP,No.2019QZKK030701) （2019QZKK030701）
