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Table 4.

Data sources for the composition of the WSI index.

IndicatorSource
Hydrology quantity Brazilian National Water Agency – ANAa/Geological Survey of Brazil – CPRM 
Hydrology quality Brazilian National Water Agency – ANAb 
Environment U.S. Department of the Interior U.S. Geological Survey USGSc 
Life Brazilian Institute of Geography and Statistics – IBGEd 
Policy Brazilian Institute of Geography and Statistics – IBGEe 
IndicatorSource
Hydrology quantity Brazilian National Water Agency – ANAa/Geological Survey of Brazil – CPRM 
Hydrology quality Brazilian National Water Agency – ANAb 
Environment U.S. Department of the Interior U.S. Geological Survey USGSc 
Life Brazilian Institute of Geography and Statistics – IBGEd 
Policy Brazilian Institute of Geography and Statistics – IBGEe 

aANA (2012) Brazilian National Water Agency [WWW Document]. Hidroweb. URL http://hidroweb.ana.gov.br.

bSame as above.

cSatellite images Landsat 5 collected from the U.S. Department of the Interior U.S. Geological Survey, URL: http://earthexplorer.usgs.gov

dBrazilian Institute of Geography and Statistics – IBGE (2015) [WWW Document] URL http://www.cidades.ibge.gov.br/xtras/home.php.

eSame as above.

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