Multi-Temporal Glacier Inventory of the Peruvian and Bolivian Tropical Andes (2016–2024)

This dataset provides a comprehensive, multi-temporal inventory of glacier outlines for the Tropical Andes of Peru and Bolivia, covering the period from 2016 to 2024. The glacier outlines were generated using the Glacier-VisionTransformer-U-Net (GlaViTU) model (Maslov et al., 2025), a fully automated deep learning architecture trained to segment both debris-free and debris-covered ice. The dataset tracks the evolution of tropical glaciers, estimating a total regional area loss of 201.6 ± 99 km² (14.7%) between 2016 and 2024 at an average rate of 1.83% per year. In addition to spatial polygons, the dataset includes topographic attributes (elevation, slope, and aspect). All spatial geometries are provided in the WGS84 coordinate reference system (EPSG:4326). The dataset is provided as a GeoPackage (.gpkg) file, containing the outlines of glaciers from 2016 to 2024. The following attributes are included for each geometry: Attribute Description rgi_id (String) Randolph Glacier Inventory (RGI) identifier. Type (String) Classification of the glacier section (e.g., debris-free ("IG") or debris-covered ("DCG")). year (Integer) Observation year of the generated glacier outline (between 2016 and 2024). area (Float) Estimated surface area of the glacier polygon in square meters. CR (String) Climatic Region for the specific glacier according to Sagredo and Lowell (2012). crs (String) Coordinate Reference System used for the spatial data, specifically used for glacier outlining and area estimation. elev_mean (Float) Mean elevation of the glacier polygon derived from Copernicus 30 m Global DEM. elev_min (Float) Minimum elevation point within the glacier polygon derived from Copernicus 30 m Global DEM. elev_max (Float) Maximum elevation point within the glacier polygon derived from Copernicus 30 m Global DEM. slope_mean (Float) Mean slope of the glacier surface derived from Copernicus 30 m Global DEM. aspect_mean (Float) Mean aspect of the glacier surface derived from Copernicus 30 m Global DEM. geometry (Geometry) Spatial polygon delineating the glacier boundaries.