Data sources

Every number here has a stated origin. We keep three layers, and they are never blended without saying so.

Official data

Maps and data published by the government, shown as published, with publisher, scale and edition.

• Garis pantai dunia, 1:50.000.000
  Natural Earth (domain publik). Hanya untuk mewarnai laut pada skala negara dan provinsi. Updated: 16 October 2026, 1,411 features.
• Peta Fungsi Ekosistem Gambut, 1:50.000, PP 57/2016
  Kementerian Lingkungan Hidup dan Kehutanan, disajikan Satu Peta (BIG). Tanah gambut atau mineral, kelas ketebalan dan fungsi lindung atau budidaya. Belum mencakup semua KHG. Updated: 16 October 2026, 15,980 features.
• Peta Rawan Kebakaran Hutan dan Lahan, 1:250.000, Perdirjen PPI P.6/2021
  Kementerian Lingkungan Hidup dan Kehutanan, disajikan Satu Peta (BIG). Empat kelas kerawanan: rendah, sedang, tinggi, sangat tinggi. Updated: 16 October 2026, 175,985 features.
• Peta Rawan Banjir, 1:50.000, 2020
  Satu Peta (BIG). Kelas rendah, menengah dan tinggi; wilayah tidak rawan tidak digambar. Baru mencakup sebagian provinsi (terutama NTT, Sumatera Utara, Maluku Utara, Bali dan Maluku), belum daerah gambut utama. Updated: 16 October 2026, 35,593 features.
• Peta Lahan Gambut Indonesia, 1:250.000, 2011
  Kementerian Pertanian (BBSDLP), disusun digital oleh WRI, disajikan BNPB. Sebaran gambut nasional, tanpa kelas ketebalan. Updated: 16 October 2026, 1,524 features.
• Peta Kesatuan Hidrologis Gambut, 1:50.000, PP 57/2016
  Kementerian Lingkungan Hidup dan Kehutanan, disajikan Satu Peta (BIG). Batas KHG yang sudah dipetakan rinci. Belum mencakup semua 865 KHG nasional. Updated: 16 October 2026, 250 features.
• Batas provinsi dan kabupaten/kota
  Badan Pusat Statistik, melalui Karhutla Intelijen. Updated: 16 October 2026, 554 features.

Gambut Intelijen engine

Our own computations from satellite and weather data, each with its method and an accuracy measured against real events.

• Peat fire risk per 1 km square
  Logistic regression on daily weather (NASA POWER, ECMWF), the Drought Code and fire history. Tested on 2021–2025: AUC 0.908; the top-scoring 10% of the area holds 70% of fire weeks.
• Peat dryness
  Drought Code and Keetch-Byram Drought Index per 0.25° cell from daily weather and the ECMWF 7-day forecast, with BMKG danger classes (140, 260, 350).
• Active fires
  Six satellite sensors (VIIRS, MODIS, Himawari-9, Sentinel-3) filtered and merged every 10 minutes; only confirmed fires are counted.

Field survey

Direct field measurements by our team and partners, such as water table depth and peat thickness. This layer is being prepared.