USGS Project
The objective of the this project, titled “Managing the Nation’s Fish Habitat at Multiple Spatial Scales in a Rapidly Changing Climate”, is to provide state and federal agencies, non-government organizations and other stakeholders with GIS-based maps of fish habitat vulnerability at local, regional and national scales. The research team includes scientists from the USGS, several universities (University of Missouri, Michigan State University, Penn State University, University of Minnesota-Duluth, Purdue University, and University of Washington, as well as scientists from state agencies (Minnesota Department of Natural Resources, Michigan Department of Natural Resources and Environment). The project team also partners with the National Fish Habitat Action Plan (NFHAP). Regional projects focus on the glacial lakes region, the eastern brook trout region and the lower Colorado River basin.
The products being produced by the HEMA lab include: land use forecasts at the national scale based on NLCD 2001, GIS base maps used for the land use change model (e.g., elevation, soils, road networks, population forecasts at the county level). Data and forecast maps will be incorporated into an online GIS-based system. Forecast maps from the land use change model are accessible at our LTM output portal.
Learn more about the project at the official project web site.
National Land Transformation Model
Data access
Zip files are password protected. Please email Dr. Bryan Pijanowski for access.
- Urban Projections
- Agriculture Projections
- Regional Base Data
Urban Expansion maps were created using the Land Transformation Model (LTM). Growth was based on U.S. Census population predictions along with land suitability parameters including distance to existing urban areas, highways, roads, stream along with slope. National parks and federally owned lands were excluded. When using the data, and for more information see the Journal of Land Use Science paper "Hierarchical modeling of urban growth across the conterminous USA: developing meso-scale quantity drivers for the Land Transformation Model".
LTM US Urban Projections Version 3
Base land cover NLCD 2001 V2
Release Date: July 18, 2012
Pixel Size: 30m
Metadata: ltm_urbv3_metadata.docx
Base Land Cover Data: NLCD 2001 V2
Notes: ESRI GRID files with no pyramids or VAT.
Base Land Use
Contents: National Land Cover Dataset version 2
Compressed Size:
Uncompressed Size:
Download: nlcd2001_v2_2-13-11.zip
Password Protected: No
Core
Contents: Urban projections from 2010 to 2050 in ten year increments.
Compressed Size: 7.6 GB
Uncompressed Size: 14.8 GB
Download: ltm_urbv3_core.zip
Password Protected: Please contact Dr. Bryan Pijanowski for access.
Refined
Contents: Urban projections from 2015 to 2055 in ten year increments.
Compressed Size: 7.6 GB
Uncompressed Size: 14.8 GB
Download: ltm_urbv3_refined.zip
Password Protected: Please contact Dr. Bryan Pijanowski for access.
Extended
Contents: Urban projections from 2060 to 2105 in five year increments.
Compressed Size: 15.6 GB
Uncompressed Size: 30.1 GB
Download: ltm_urbv3_extended.zip
Password Protected: Please contact Dr. Bryan Pijanowski for access.
Agricultural Expansion maps represent the amount of additional corn land predicted due to ethanol plant demand. Both urban and water areas were excluded. The urban exclusion area for each decade was derived from the urban growth projection maps. Pixels were assigned based on slope and their proximity to ethanol plants.
Release Notes - Explanation of changes between releases.
All Years
Release Date: October 30, 2012
Pixel Size: 300m
Compressed Size: 112 MB
Uncompressed Size: 295 GB
Metadata: National LTM Ag version 3.doc
Base Land Cover Data: NLCD 2001 V2
Notes: ESRI GRID files with pyramids and VAT.
Download File: US_AgV3_2010to2050.zip
The base land use files and associated spatial data can be downloaded here by region. Note that there is an ArcGIS 9.3/10.0 compatible mxd file that contains symbology for all shape files and raster file.
Eastern Brook Trout Region |
Click image to view larger map | |
Download File: Eastern_Brook_Trout.zip Compressed Size: 5.0 GB Uncompressed Size: 12 GB Download includes: Region boundary, roads, streams, federal lands, slope, elevation, aspect, and NLCD 2001
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Great Lakes Region
Download File: LTM_Training_V1.zip
Compressed Size: 3.6 GB
Uncompressed Size: 9 GB
Download includes: Region boundary, roads, streams, federal lands, slope, elevation, aspect, and NLCD 2001
Lower Colorado Region
Download File: Lower_Colorado.zip
Compressed Size: 3.4 GB
Uncompressed Size: 9 GB
Download includes: Region boundary, roads, streams, federal lands, slope, elevation, aspect, and NLCD 2001
Upper Colorado Region
Download File: UpperColorado.zip
Compressed Size: 2.9 GB
Uncompressed Size: 8 GB
Files included: Region boundary, roads, streams, federal lands, slope, elevation, aspect, and NLCD 2001
Western Trout Region
Download File: WesternTrout.zip
Compressed Size: 8.4 GB
Uncompressed Size: 20 GB
Download includes: Region boundary, roads, streams, federal lands, slope, elevation, aspect, and NLCD 2001
Last updated February 18, 2013