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. 2017 Aug 8;14(8):892. doi: 10.3390/ijerph14080892

Table 1.

Proposed thirty-three variables in prediction model of WNV mosquito vectors in the city of New Orleans, LA.

Variable Variable Name Data Source Units
Alt Elevation in meters WorldClim 1 Meter
Aspect Aspect ratio Generated 2 Degrees
Bio01 Annual Mean Temperature WorldClim 1 Degree Celsius
Bio02 Mean Diurnal Range (Mean of monthly (max temp − min temp)) WorldClim 1 Degree Celsius
Bio03 Isothermality (BIO2/BIO7) (* 100) WorldClim 1 Dimensionless
Bio04 Temperature Seasonality (standard deviation * 100) WorldClim 1 Degree Celsius
Bio05 Max Temperature of Warmest Month WorldClim 1 Degree Celsius
Bio06 Min Temperature of Coldest Month WorldClim 1 Degree Celsius
Bio07 Temperature Annual Range (BIO5-BIO6) WorldClim 1 Degree Celsius
Bio08 Mean Temperature of Wettest Quarter WorldClim 1 Degree Celsius
Bio09 Mean Temperature of Driest Quarter WorldClim 1 Degree Celsius
Bio10 Mean Temperature of Warmest Quarter WorldClim 1 Millimeter
Bio11 Mean Temperature of Coldest Quarter WorldClim 1 Millimeter
Bio12 Annual Precipitation WorldClim 1 Millimeter
Bio13 Precipitation of Wettest Month WorldClim 1 Millimeter
Bio14 Precipitation of Driest Month WorldClim 1 Millimeter
Bio15 Precipitation Seasonality (Coefficient of Variation) WorldClim 1 Fraction
Bio16 Precipitation of Wettest Quarter WorldClim 1 Millimeter
Bio17 Precipitation of Driest Quarter WorldClim 1 Millimeter
Bio18 Precipitation of Warmest Quarter WorldClim 1 Millimeter
Bio19 Precipitation of Coldest Quarter WorldClim 1 Millimeter
Curvature Curvature Generated 2 Degrees
DFL Deciduous forest land USGS 3 Integer values
FW Forested wetland USGS 3 Integer values
Hill shade Hill shade Generated 2 Degrees
ICS Industrial and commercial services USGS 3 Integer values
NFWL Non-forested wetland USGS 3 Integer values
OUBL Other urban and build-up land USGS 3 Integer values
Population census Population census per block NOLA 5 No. household/block
RU Residential and urban settings USGS 3 Integer values
SCLRE Streams, canals, lakes, reservoirs and estuaries USGS 3 Integer values
Slope Slope Generated 2 Degrees
TD Tree density Lewis et al. 4 No. trees/area

1 WorldClim Global Climate database v1.4, available at: http://www.ccafs-climate.org/data/ (accessed on 7 March 2016); 2 Digital elevation model using the surface spatial analyst tool in Arc tool box of ArcGIS ver. 10.1; 3 USGS available at: http://water.usgs.gov/GIS/dsdl/ds240/ (accessed on 3 March 2016); 4 Lewis et al. (In Review) [31]; 5 data.nola.gov (accessed on 7 March 2016) All layers of variables data used in producing species distribution model gridded to ~1 km spatial resolution and projected into World Geodetic System (WGS) 1984.