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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