The AcATaMa plugin was designed mainly with these keys goals:

  1. To assess the accuracy of thematic maps
  2. To estimate areas of the map classes (for example land cover and land change), according to Olofsson et al. (2013, 2014).
  3. Sampling design/classification

But nevertheless, you can use AcATaMa for many different uses (you can see some examples in use cases)).


The plugin allow to apply the methodology and main recommendations included (mainly) in these papers:

About us

AcATaMa was developing, designed and implemented by the Group of Forest and Carbon Monitoring System (SMByC), operated by the Institute of Hydrology, Meteorology and Environmental Studies (IDEAM) - Colombia.

Author and developer: Xavier Corredor Ll.
Theoretical support, tester and product verification: Lina Katerine V., Gustavo Galindo, Juan Carlos R.

Acknowledge to all SMByC team and Food and Agriculture Organization (FAO) for partial financial support of the project.


Xavier Corredor Ll.: xcorredorl (a) ideam.gov.co
SMByC: smbyc (a) ideam.gov.co