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US environmental grids 5 km

Short title: 

For the purpose of mapping heavy metal concentrations, a list of environmental predictors have been prepared using the data available from the USGS and the National Atlas.

Available layers: 

The dataset consists of 14 gridded maps, possibly extendable to 130 grids if one also includes the indicators. Description of each grid is available in the *.rdc file.

  1. geomap --- geological map of US;
  2. nlights03 --- lights and night image for year 2003;
  3. dTRI --- kernel density of reported toxic releases;
  4. gcarb --- biomass carbon map;


Fig. 6.4. Examples of environmental predictors used to interpolate HMCs.
Spatial structure: 
  • min. X      : -2405000
  • max. X      : 2295000
  • min. Y      : 260000
  • max. Y      : 3220000
  • resolution  : 5000
+proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +datum=NAD83 +units=m +no_defs
United States
Data owner: 

USGS / National Atlas

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