Spatial predictions and uncertainty maps of global fallout radionuclides (137Cs and 239+240Pu) for the Southern Hemisphere

Overview This repository contains high-resolution (1 km) spatial datasets for global fallout radionuclides across the Southern Hemisphere (extending to 20°N). The data includes spatial predictions, uncertainty estimates, and model applicability assessments for Cesium-137 ($^{137}Cs$) and Plutonium-239+240 ($^{239+240}Pu$) inventories in soil. Associated Publication These datasets support the research presented in the following study: "Radioactive fallout legacy of nuclear tests in soils of the Southern Hemisphere" Technical Specifications Spatial Resolution: 1 km (30 arc-seconds) Coordinate Reference System (CRS): [WGS 84] Units: [Bq/m²] and [% for CV] Data Content For both $^{137}Cs$ and $^{239+240}Pu$, the repository provides: Prediction Maps (.tif): Spatial distribution of radionuclide inventories. Uncertainty & CV Maps (.tif): Standard deviation and Coefficient of Variation for reliability assessment. Area of Applicability (.shp): Vector masks identifying the reliable model domain (Gridcode 1 = Applicable). Documentation Please refer to the README.txt (or README.md) file included in this repository for detailed metadata, file structures, and usage instructions.