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Table 1 Summary of variables used in BRT model to estimate PfPR2–10 risk

From: Mapping intra-urban malaria risk using high resolution satellite imagery: a case study of Dar es Salaam

Variable Source Data source spatial resolution
Land cover classes (C1–C13) SPOT satellite imagea 1.5 m
Percentage dense/riverine vegetation SPOT satellite imagea 1.5 m
Percentage built-up SPOT satellite imagea 1.5 m
Distance to inland water (m) SPOT satellite imagea and GLWDb 1.5 m
NDVI SPOT satellite imagea 1.5 m
NDWI SPOT satellite imagea 1.5 m
Altitude ASTER GDEMc 30 m
Wetness Index (CTI) ASTER GDEMc 30 m
Temperature MODIS LSTd 1 km
Rainfall RFE 2.0e 1 km
  1. All variables except distance to water were extracted within 1 km radius
  2. Data sources: a SPOT imagery; complete section on SPOT data
  3. bGlobal Lakes and Wetlands Database. www.worldwildlife.org/GLWD
  4. c http://www.jspacesystems.or.jp/ersdac/GDEM/E/index.html
  5. d https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table/mod11a1
  6. e http://www.cpc.noaa.gov/products/international/data.shtml