METEOR 2.5D: An Open Geospatial Dataset of Spatiotemporal Evolution of Physical Vulnerability in UN-recognized Least Developed Countries (as of 2020) at Five-year Intervals, 1975-2030 (Part 1 of 2)

A novel open geospatial dataset, METEOR 2.5D, that spatially refines the existing METEOR dataset (i.e., from 450-meter to 90-meter scale) and significantly extends it with country-wide dynamic evolution of regional exposure and physical vulnerability for 46 UN-recognized Least Developed Countries as of 2020, provided at five-year intervals between 1975 and 2030.一款全新的开放地理空间数据集METEOR 2.5D。该数据集对现有METEOR数据集开展空间精细化优化，将空间分辨率从450米提升至90米；同时大幅拓展了数据集内容，新增了46个联合国认定的最不发达国家截至2020年的全域区域暴露度与物理脆弱性动态演化数据，且以五年为间隔提供1975年至2030年的多时段数据。