PRODES

PRODES
Name	PRODES
Type	Remote sensing monitoring program
Established	1988
Country	Brazil
Agency	Instituto Nacional de Pesquisas Espaciais

PRODES PRODES is a long-running satellite-based monitoring program operated by the Instituto Nacional de Pesquisas Espaciais to quantify annual deforestation in the Amazon Rainforest in Brazil. It produces annual maps and statistics that inform policymakers in Brasília, researchers at Universidade de São Paulo and University of Oxford, and international bodies such as the United Nations Environment Programme and the World Bank. The program's datasets are used by scientists at institutions including the National Aeronautics and Space Administration, European Space Agency, and conservation organizations such as Greenpeace and the World Wildlife Fund.

Overview

PRODES provides systematic, wall-to-wall mapping of clearcut deforestation across selected forested regions using satellite imagery from missions like Landsat, CBERS, and other optical sensors. Its annual estimates are compared with inventories by the Instituto Brasileiro de Geografia e Estatística and international assessments such as those produced by the Intergovernmental Panel on Climate Change. The outputs are integrated into policy instruments administered in Brasília and inform compliance with international agreements including the Paris Agreement and reporting to the United Nations Framework Convention on Climate Change. Key stakeholders range from federal bodies such as the Ministry of the Environment (Brazil) to academic groups at Harvard University and Stanford University.

Methodology

PRODES uses manual and automated image interpretation protocols adapted to data from Landsat 5, Landsat 7, Landsat 8, and the CBERS-4 series, applying change-detection logic similar to methods used by researchers at NASA Goddard Space Flight Center and the European Space Agency. Analysts trained at the Instituto Nacional de Pesquisas Espaciais delineate polygons of clearcut areas using time-series mosaics comparable to approaches by teams at University of Maryland and Global Forest Watch. The program employs geospatial processing environments akin to systems at Esri and scripting approaches inspired by work at Google Earth Engine laboratories. Quality control procedures reference accuracy assessment frameworks used by Food and Agriculture Organization and IPCC guidelines.

Data Products and Outputs

PRODES publishes annual shapefiles and summary tables that enumerate deforested hectares by state, municipality, and land tenure category; these outputs are analogous to datasets released by MapBiomas and integrated into platforms like Global Forest Watch. Output layers are used by analysts at Conservation International and modelers at Potsdam Institute for Climate Impact Research to estimate carbon emissions following protocols in studies by Michael Maslin and reports cited by the World Resources Institute. The program issues maps compatible with tools developed by QGIS and ArcGIS and supplies inputs for landscape analyses performed by groups at Yale University and University of Cambridge.

Applications and Impact

PRODES data have informed enforcement actions by agencies such as the Brazilian Institute of Environment and Renewable Natural Resources and shaped policy discussions in the National Congress of Brazil and international fora like the G20. The dataset underpinned research published by teams at Columbia University and University of California, Berkeley on land-use change, influenced supply-chain commitments by corporations like JBS S.A. and Cargill, and supported conservation campaigns by The Nature Conservancy and Imazon. Academics at Michigan State University and University of British Columbia have used PRODES outputs to calibrate ecological models and to validate remote sensing algorithms developed at Carnegie Institution for Science.

Criticism and Limitations

Critics from universities such as Federal University of Pará and NGOs including Amazon Watch note that PRODES focuses on clearcutting and does not capture degradation, selective logging, or smallholder mosaic deforestation detected by systems like DEGRADA and methods used by Global Land Analysis and Discovery (GLAD). Methodological constraints tied to cloud cover similar to issues faced by Landsat 7 scan-line errors and limitations of optical sensors have been highlighted by analysts at University of Exeter and University of Leeds. Debates in academic journals involving authors from Imperial College London and Princeton University compare PRODES outputs to synthetic-aperture radar products from Sentinel-1 and argue for multi-sensor fusion as practiced by teams at Jet Propulsion Laboratory.

History and Development

PRODES began in the late 1980s under initiatives linked to programs in Brasília and collaborations with researchers at National Institute for Space Research (Brazil) and international partners such as NASA and the European Space Agency. Early milestones include methodological refinements influenced by studies at University of Colorado Boulder and technology upgrades aligning with the global Landsat modernization program coordinated with USGS. Over decades the project has evolved alongside Brazilian institutions like Embrapa and civil-society research groups such as Imazon, while being cited in panels convened by the United Nations Environment Programme and referenced in analyses by the World Bank.

Category:Remote sensing Category:Deforestation in Brazil