Raster files for hot-spots of 43 weeds in Linn County are contained in the ESRI format file geodatabase:
LinnCounty43WeedHotSpots.gdb
The file was created using version 9.3 of ArcCatalog.
The Hot-spot_layer_files directory contains layer files that reference the rasters in the file geodatabase and display the rasters with break points set to Z-scores matching P=0.0001, 0.001, 0.01, 0.05, and 0.1 probability levels.
Dark blue, blue, light blue, dark aqua, and aqua colors denote areas with significantly lower than expected weed severity at the P = 0.0001, 0.001, 0.01, 0.05, and 0.1 levels, respectively. Bright red, red, orange, and orange-yellow, and yellow denote areas with significantly higher than expected weed severity at the P = 0.0001, 0.001, 0.01, 0.05, and 0.1 levels, respectively. Green areas are neither significantly higher nor lower than expected in weed severity. Scale is 1:275,000 if map is printed as a full page.
For layer files to properly reference the rasters, the file geodatabase should be copied to the following directory structure location:
C:\GIS_Server\LinnCounty43WeedHotSpots.gdb
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