Peatland groundwater level composites, uncertainty layers, and Ridge model coefficients for South Sumatra, Indonesia

Modelled 1-km groundwater level (GWL) rasters for representative wet (1-13 April 2019) and dry (13-25 November 2019) windows in the Peat Hydrological Units of South Sumatra, Indonesia, with the wet-minus-dry decline, scene and tile intermediates, composite-variability and bootstrap uncertainty layers, quality-assurance tables, the coefficients of the frozen Ridge regression, and the Google Earth Engine scripts used to apply the model. GWL is in metres relative to the peat surface (negative = below the surface). Grid: EPSG:32748, 1,000 m, 365 x 279 cells, 20,921 cells in the analysis domain. The rasters are regional hydrological indicators, not measurements at individual wells. The field groundwater level and rain-gauge observations (BRGM/SIPALAGA) are not included; they are subject to the data provider's access conditions. Scripts are released under the MIT licence; data, tables, and the coefficient file under CC BY 4.0. See README.md.