Primary humid tropical forests provide numerous global ecosystem services, but are under continuing threat of clearing from economic drivers. To facilitate national land use planning and balancing the goals of economic development and maintenance of ecosystem services, a set of primary humid tropical forest forests maps were created by the UMD GLAD team. The primary forest extent was mapped for the year 2001 at a spatial resolution of 30 meters using globally acquired, free-of-charge, and consistently processed Landsat imagery.

Here, we are presenting the national year 2001 primary humid tropical forests maps for Brazil, Indonesia, and the Democratic Republic of the Congo (DRC). Country boundary were obtained from the All maps are in geographic coordinates (WGS84 reference system) with pixel size of 0.00025 degree. The pixel value are: 0 – outside country; 1 – other land; 2 – primary humid tropical forests 2001.

We ask you to credit provided data as follows:

Turubanova S., Potapov P., Tyukavina, A., and Hansen M. (2018) Ongoing primary forest loss in Brazil, Democratic Republic of the Congo, and Indonesia. Environmental Research Letters 

Data Links:




Sample Database:

Database of sampled pixels for estimation of primary forest extent and loss for Brazil, the Democratic Republic of the Congo, and Indonesia.  Each sample's template consists of time-series thumbnail Landsat imagery, graphs of NDVI time-series, a kml file for viewing sample location in GoogleEarth.

Sample database: