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. History of Versions:  v0.0.0 (2025-08-01): Initial and anonymized upload for scientific peer review purposes Countries: AFG: Afghanistan AGO: Angola BDI: Burundi BEN: Benin BFA: Burkina Faso BGD: Bangladesh BTN: Bhutan (graduated from LDC status in December 2023) CAF: The Central African Republic COD: The Democratic Republic of the Congo COM: The Comoros DJI: Djibouti ERI: Eritrea ETH: Ethiopia GIN: Guinea GMB: The Gambia GNB: Guinea-Bissau HTI: Haiti KHM: Cambodia LAO: The Lao People's Democratic Republic LBR: Liberia LSO: Lesotho MDG: Madagascar MLI: Mali