Distribution map of the relationship between vegetation and freeze-thaw changes in the Arctic (1982-2015)

As an important part of the global carbon pool, Arctic permafrost is one of the most sensitive regions to global climate change. The rate of warming in the Arctic is twice the global average, causing rapid changes in Arctic permafrost. The NDVI change data set of different types of permafrost regions in the Northern Hemisphere from 1982 to 2015 has a temporal resolution of every five years, covers the entire Arctic Rim countries, and a spatial resolution of 8km. Based on multi-source remote sensing, simulation, statistics and measured data, GIS method and ecological method are used to quantify the regulation and service function of permafrost in the northern hemisphere to the ecosystem, and all the data are subject to quality control.

作为全球碳库的重要组成部分，北极永久冻土区是全球气候变化最为敏感的区域之一。北极地区的升温速度是全球平均水平的两倍，导致北极永久冻土区发生急剧变化。本数据集收集了北半球不同类型永久冻土区域自1982年至2015年的NDVI变化数据，时间分辨率为每五年一次，覆盖了整个北极圈国家，空间分辨率为8公里。基于多源遥感、模拟、统计学和实测数据，采用GIS方法和生态学方法对北半球永久冻土对生态系统的调节和服务功能进行量化分析，所有数据均经过质量控制。