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    • NorWeST Stream Temperatures 2040s (Feature Layer)

    Metadata Updated: April 21, 2025

    This layer represents modeled stream temperatures derived from the NorWeST point feature class (NorWest_TemperaturePoints). NorWeST summer stream temperature scenarios were developed for all rivers and streams in the western U.S. from the > 20,000 stream sites in the NorWeST database where mean August stream temperatures were recorded. The resulting dataset includes stream lines (NorWeST_PredictedStreams) and associated mid-points NorWest_TemperaturePoints) representing 1 kilometer intervals along the stream network. Stream lines were derived from the 1:100,000 scale NHDPlus dataset (USEPA and USGS 2010; McKay et al. 2012). Shapefile extents correspond to NorWeST processing units, which generally relate to 6 digit (3rd code) hydrologic unit codes (HUCs) or in some instances closely correspond to state borders. The line and point shapefiles contain identical modeled stream temperature results. The two feature classes are meant to complement one another for use in different applications. In addition, spatial and temporal covariates used to generate the modeled temperatures are included in the attribute tables at https://www.fs.usda.gov/rm/boise/AWAE/projects/NorWeST/ModeledStreamTemperatureScenarioMaps.shtml. The NorWeST NHDPlusV1 processing units include: Salmon, Clearwater, Spokoot, Missouri Headwaters, Snake-Bear, MidSnake, MidColumbia, Oregon Coast, South-Central Oregon, Upper Columbia-Yakima, Washington Coast, Upper Yellowstone-Bighorn, Upper Missouri-Marias, and Upper Green-North Platte. The NorWeST NHDPlusV2 processing units include: Lahontan Basin, Northern California-Coastal Klamath, Utah, Coastal California, Central California, Colorado, New Mexico, Arizona, and Black Hills.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date November 3, 2022
    Metadata Updated Date April 21, 2025

    Metadata Source

    Harvested from USDA JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 3, 2022
    Metadata Updated Date April 21, 2025
    Publisher U.S. Forest Service
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=0cd39b50f7bb4539aac2a472bc93afe0&sublayer=1
    Data First Published 2018-06-26
    Data Last Modified 2024-12-18
    Category geospatial
    Public Access Level public
    Bureau Code 005:96
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id c778ba30-f94d-4c76-b7ea-56c2d869840c
    Harvest Source Id d3fafa34-0cb9-48f1-ab1d-5b5fdc783806
    Harvest Source Title USDA JSON
    Homepage URL https://data-usfs.hub.arcgis.com/datasets/usfs::norwest-stream-temperatures-2040s-feature-layer
    License https://creativecommons.org/licenses/by/4.0/
    Metadata Type geospatial
    Old Spatial -124.7244,31.3315,-101.2517,49.0026
    Program Code 005:059
    Progresscode onGoing
    Source Datajson Identifier True
    Source Hash a61890309ab6646d4baf02ea48a47ef0340147224e1c68e5826e2ae5063f9846
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -124.7244, 31.3315, -124.7244, 49.0026, -101.2517, 49.0026, -101.2517, 31.3315, -124.7244, 31.3315}

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