Historical winter precipitation (CONUS) (Image Service)
type: Dataset
description: 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. Historical (1975-2005) and future (2071-2090) precipitation and temperature data for the contiguous United States are ensemble mean values across 20 global climate models from the CMIP5 experiment (https://journals.ametsoc.org/doi/abs/10.1175/BAMS-D-11-00094.1), downscaled to a 4 km grid. For more information on the downscaling method and to access the data, please see Abatzoglou and Brown, 2012 (https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.2312) and the Northwest Knowledge Network (https://climate.northwestknowledge.net/MACA/). We used the MACAv2- Metdata monthly dataset; monthly precipitation values (mm) were summed over the season of interest (annual, winter, or summer). Absolute and percent change were then calculated between the historical and future time periods. Raster data are also available for download from RMRS site (https://www.fs.fed.us/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/categories/us-raster-layers.html), along with pdf maps and detailed metadata (https://www.fs.fed.us/rm/boise/AWAE/projects/NFS-regional-climate-change-maps/downloads/NationalForestClimateChangeMapsMetadata.pdf).
keyword: air-water-and-aquatic-environments-program
keyword: amerigeo
keyword: amerigeoss
keyword: awae
keyword: ckan
keyword: climate
keyword: climate-change
keyword: contiguous-u-s
keyword: conus
keyword: geo
keyword: geoss
keyword: national
keyword: national-forests
keyword: north-america
keyword: office-of-sustainability-and-climate
keyword: open-data
keyword: osc
keyword: precipitation
keyword: rmrs
keyword: rocky-mountain-research-station
keyword: united-states
keyword: usda-forest-service
keyword: usfs
keyword: water-yield
issued: 2017-11-22
modified: 2020-07-16
theme: {geospatial}
contact point: Organization
  fn: USFSEnterpriseContent
spatial: Location

US Migrating
type: Agent

ArcGIS Hub Dataset
type: Distribution
media type: text/html
format: HTML
access URL: https://data-usfs.hub.arcgis.com/datasets/usfs::historical-winter-precipitation-conus-image-service
issued: 2022-03-06T09:03:40.269245
modified: 2025-11-20T19:55:28.925881

ArcGIS GeoService
type: Distribution
media type: application/json
format: ArcGIS GeoServices REST API
access URL: https://apps.fs.usda.gov/fsgisx01/rest/services/RDW_Climate/AvgWinterPrecipHistorical1975_2005_CONUS/ImageServer
issued: 2022-03-06T09:03:40.269255
modified: 2025-11-20T19:55:28.926300