Accumulated satellite-detected water extents in Ache Province, Indonesia as of 27 Nov. to 4 Dec. 2025

**UNOSAT code: FL20251126IDN, GDACS ID: 1103633** This map illustrates cumulative satellite-detected water extent in Ache Province, Indonesia as observed from multiple satellite imagery acquired between 27 Nov. and 4 Dec. 2025. Within the analysed areas of about 56,800 km², a total of about 1,430 km² of lands appear to be affected with flood waters. Based on Worldpop spatial demographic data, about 226,000 people in Ache Province are exposed to or living close to flooded areas from 27 Nov. and 4 Dec. 2025. This is a preliminary analysis and has not yet been validated in the field. Please send ground feedback to the United Nations Satellite Centre (UNOSAT). Files (slice {"file": url}): - UNOSAT_PopulationExposure_FL20251126IDN_Aceh_29Nov2025.xlsx (excel): https://unosat.org/static/unosat_filesystem/4226/UNOSAT_PopulationExposure_FL20251126IDN_Aceh_29Nov2025.xlsx

Cite as: United Nations Satellite Centre (UNOSAT). Accumulated satellite-detected water extents in Ache Province, Indonesia as of 27 Nov. to 4 Dec. 2025. https://data.humdata.org/dataset/accumulated-water-extents-in-ache-province-indonesia-as-of-27-nov-to-4-dec-2025