Percent change in April 1 snow water equivalent (CONUS) (Image Service)

Metadata Updated: December 3, 2020

The National Forest Climate Change Maps project was developed by the Rocky Mountain Research Station (RMRS) and the Office of Sustainability and Climate to meet the needs of national forest managers for information on projected climate changes at a scale relevant to decision making processes, including forest plans. The maps use state-of-the-art science and are available for every national forest in the contiguous United States with relevant data coverage. Currently, the map sets include variables related to precipitation, air temperature, snow (including snow residence time and April 1 snow water equivalent), and stream flow.

Snow residence time (in days) and April 1 snow water equivalent (in mm) were modeled using the spatial analog models of Luce et al., 2014 (; see also Lute and Luce, 2017 ( These models are built on precipitation and snow data from Snowpack Telemetry (SNOTEL) stations across the western United States and temperature data from the TopoWx dataset ( They were calculated for the historical (1975-2005) and future (2071-2090) time periods, along with absolute and percent change.

Raster data are also available for download from RMRS site (, along with pdf maps and detailed metadata (

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

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Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020

Metadata Source

Harvested from USDA JSON

Additional Metadata

Resource Type Dataset
Metadata Created Date December 3, 2020
Metadata Updated Date December 3, 2020
Publisher U.S. Forest Service
Unique Identifier Unknown
Data First Published 2017-11-22
Data Last Modified 2020-07-16
Category geospatial
Public Access Level public
Bureau Code 005:96
Metadata Context
Schema Version
Catalog Describedby
Homepage URL
Metadata Type geospatial
Program Code 005:059
Source Datajson Identifier True
Source Hash 6cfbc962685e1e6064b00523780482355d0f17cf
Source Schema Version 1.1
Spatial -134.9134,21.083,-56.9007,52.3709

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