Greater Yellowstone Area Landscape Dynamics, Raster Data

This zip file contains 24 raster layers representing data from a variety of landscape metrics used to analyze the landscape context of the greater Yellowstone area. Their names, descriptions and categorization are as follows:

Housing
This raster dataset contains seventeen housing layers which are all named in the format "bhc1940," where ‘bhc’ is Built Housing Capacity and year represents the decades from 1940 through 2100. The layers depict the location and density of private land housing unit classes, as described below. The classifications were produced using the SERGoM v3 model (see Theobald, D. 2005. Landscape patterns of exurban growth in the USA from 1980 to 2020. http://www.ecologyandsociety.org/vol10/iss1/art32). These data are based on existing US Census datasets and growth projections. 

SERGoM_bhc_metrics:

Value CLASSNAME
0 Private undeveloped
1 < 1.5 units / square km
2 1.5 - 3 units / square km
3 4 - 6 units / square km
4 7 - 12 units / square km
5 13 - 24 units / square km
6 25 - 49 units / square km
7 50 - 145 units / square km
8 146 - 494 units / square km
9 495 - 1,234 units / square km
10 1,235 - 2,470 units / square km
11 > 2,470 units / square km
12 Commercial/industrial


Land Cover
Land cover and impervious surface data comes from version 2 of the circa 2001 National Land Cover Dataset (NLCD), the circa 2006 NLCD, and the NLCD 2001/2006 Land Cover Change product, which was acquired from the Multi-Resolution Land Characteristics Consortium. The names and descriptions of the five land cover raster layers are as follows:

- NLCD_2001v2. This raster layer depicts 16 land cover classes using data from version 2 of the circa 2001 National Land Cover Dataset. 

- NLCD_2006. This raster layer depicts 16 land cover classes using data from the circa 2006 National Landcover Database. 

- LandCover_2001. This raster layer depicts 16 land cover classes using data from the circa 2001 National Land Cover Dataset. 

Land cover classes for NLCD_2001, NLCD_2006 and LandCover_2001 are shown below. 

Value Land Cover
11 Open Water
12 Perennial Snow/Ice
21 Developed, Open Space
22 Developed, Low Intensity
23 Developed, Medium Intensity
24 Developed, High Intensity
31 Barren Land
41 Deciduous Forest
42 Evergreen Forest
43 Mixed Forest
52 Shrub/Scrub
71 Herbaceous
81 Hay/Pasture
82 Cultivated Crops
90 Woody Wetlands
95 Emergent Herbaceous Wetlands

- ImperviousSurfaces_2001. This raster layer represents impervious surfaces using data from the circa 2001 National Land Cover Dataset.

- ImperviousSurfaces_2006. This raster layer represents impervious surfaces using data from the circa 2006 National Landcover Database. 

- LandCoverChange_2001_2006. This raster layer represents land cover change from 2001 to 2006 using data from the NLCD 2001/2006 Land Cover Change product, which was acquired from the Multi-Resolution Land Characteristics Consortium.


Wildlife
- Grizzly_Connectivity. This raster layer represents grizzly habitat connectivity in the GYA. For more information, please consult the corresponding reference citations from the report.


Agriculture
- GYA_Agriculture is a CSV file containing tabular county-level data from the 2002 and 2007 U.S. Department of Agriculture (USDA) Census of Agriculture. Data were obtained from National Agriculture Statistics Service (NASS).

Tags: census, habitat-connectivity, housing, idaho, impervious-surfaces, land-cover, montana, wyoming
Organization: Department of the Interior