Temperature-only Climate Gradient Corridors

Metadata Updated: November 12, 2020

These data represent a normalized least-cost corridor mosaic (see WHCWG 2010 and McRae and Kavanagh 2011) calculated using temperature gradients following the climate gradient linkage-modeling methods outlined in Nunez (2011), using an adapted version of the Linkage Mapper software (McRae and Kavanagh 2011). These data are depicted in Figure 5a in Nunez (2011).

This GIS dataset is one of several climate connectivity analyses produced by Tristan Nunez for a Master's thesis (Nunez 2011) while a student at the School of Forest Resources at the University of Washington. The dataset was produced in part to assist the Climate Change Subgroup of the Washington Wildlife Habitat Connectivity Working Group (WHCWG). The WHCWG is a voluntary public-private partnership between state and federal agencies, universities, tribes, and non-governmental organizations. The WHCWG is co-led by the Washington Department of Fish and Wildlife (WDFW) and the Washington Department of Transportation (WSDOT). This analysis quantifies connectivity patterns to address climate change for Washington State and neighboring areas in British Columbia, Idaho, and Oregon. Grid cell size is 1000 meters x 1000 meters. This connectivity analysis is in raster format. It should be displayed in conjunction with vector layer of Landscape Integrity Core Areas developed by the WHCWG (WHCWG 2010).

This layer is licensed by Tristan Nunez under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode ; or, (b) send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California 94140, USA.

A description of the modeling approach can be found in the thesis:

Nunez, Tristan A. June 2011. Connectivity Planning to Facilitate Species Movements in Response to Climate Change. Master's Thesis. School of Forest Resources, University of Washington. Joshua J. Lawler, advisor. Available online at

Further information about the Linkage Mapper software can be found at:

McRae, B. H., and D. M. Kavanagh. 2011. Linkage Mapper Connectivity Analysis Software. ONLINE. The Nature Conservancy, Seattle WA. Available at: http://www.circuitscape.org/linkagemapper.

Additional information about the WHCWG project, study area and generic linkage modeling approach can be found in the document:

Washington Wildlife Habitat Connectivity Working Group (WHCWG). 2010. Washington Connected Landscapes Project: Statewide Analysis. Washington Departments of Fish and Wildlife, and Transportation, Olympia, WA. Online linkage:

Temperature data used in the analysis were derived from the following sources:

Wang, T., A. Hamann, D. L. Spittlehouse, and S. N. Aitken. 2006. Development of scale-free climate data for western Canada for use in resource management. International Journal of Climatology 26:383-397. See http://www.genetics.forestry.ubc.ca/cfcg/ClimateWNA/ClimateWNA.html

Daly, C., M. Halbleib, J. I. Smith, W. P. Gibson, M. K. Doggett, G. H. Taylor, J. Curtis, and P. P. Pasteris. 2008. Physiographically sensitive mapping of climatological temperature and precipitation across the conterminous United States. International Journal of Climatology 28:2031-2064. See http://www.prism.oregonstate.edu/

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date February 20, 2019
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) 2018-04-16T21:09:06+00:00 (creation), 2018-04-16T21:09:07+00:00 (lastUpdate)
Frequency Of Update

Metadata Source

Harvested from DOI Open Data

Additional Metadata

Resource Type Dataset
Metadata Date February 20, 2019
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Reference Date(s) 2018-04-16T21:09:06+00:00 (creation), 2018-04-16T21:09:07+00:00 (lastUpdate)
Responsible Party (Point of Contact); Great Northern Landscape Conservation Cooperative (Point of Contact)
Contact Email
Guid 5ad510f2e4b0e2c2dd226983
Access Constraints
Bbox East Long -114.74064786428264
Bbox North Lat 51.067958137594196
Bbox South Lat 43.91445527480304
Bbox West Long -125.75605895275397
Coupled Resource
Frequency Of Update
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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