Data attribution
Dyaan computes its numbers from public Earth-observation archives. Nothing is generated, modelled or interpolated on our side; the sources below are the sources of truth.
NASA FIRMS — active fire
VIIRS 375 m active fire product (C2, near real-time) from Suomi NPP and NOAA-20, read from the public 24-hour CSV feeds. Courtesy of NASA FIRMS / LANCE. NRT data are provisional and subject to revision.
JRC Global Surface Water v1.4 — water transitions
Pekel, J-F., Cottam, A., Gorelick, N., Belward, A.S. (2016). High-resolution mapping of global surface water and its long-term changes. Nature 540, 418–422. Rasters read by HTTP byte range from the public Global Surface Water archive; 30 m resolution, 1984–2021.
NASA GIBS
Global Imagery Browse Services dated tiles (MODIS Terra corrected reflectance and related layers), used for basemap imagery.
Copernicus Sentinel-2
Contains modified Copernicus Sentinel data. Sentinel-2 layers are on the roadmap for the vegetation and change-detection capabilities.
OpenStreetMap
Street basemap tiles and place search (Nominatim) © OpenStreetMap contributors, available under the Open Database License (ODbL).
Not affiliated
Dyaan is an independent product and is not affiliated with, endorsed by or sponsored by NASA, the European Commission, the Joint Research Centre or the OpenStreetMap Foundation.