Download or build SCS Curve Number maps and compute zonal statistics for watersheds and subbasins.
HidroCN downloads CN Peru or GCN250 data from Google Earth Engine, or builds a local SCS-CN grid from land use, hydrologic soil group and a HEC-GeoHMS-compatible table. It generates dry, normal and wet conditions, subbasin statistics and traceable outputs. CN Peru is a regional source for Peru. The GEE workflow requires the optional earthengine-api package and a user-authorized Google Cloud project; local calculation works with the NumPy and GDAL libraries bundled with QGIS. / HidroCN descarga CN Peru o GCN250 desde Google Earth Engine, o construye localmente un grid SCS-CN a partir de uso del suelo, grupo hidrologico y una tabla compatible con HEC-GeoHMS.
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