Name: Mean August Stream Temperatures (1993_2011)

Display Field: S1_93_11

Type: Feature Layer

Geometry Type: esriGeometryPolyline

Description: 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. This layer contains Scenario 1, modeled stream temperature from 1993-2011. Other attributes and model results are availalbe for download on the Modeled Stream Temperature Scenario Maps page.The NorWeST scenarios include: 1) Adobe PDF format maps depicting historical and future modeled mean August stream temperatures, 2) graphs (JPG format) demonstrating the accuracy of the temperature model, and 3) GIS shapefiles (SHP format) representing the spatially modeled stream temperatures. Those shapefiles were used to create this ArcGIS online service.The GIS shapefiles include stream lines and associated mid-points 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 shapefile formats 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 shapefile attribute tables. 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.

Service Item Id: 40fa20da40264315bb492c0152a4532b

Copyright Text: Funding for this project was provided by USDA Forest Service, Rocky Mountain Research Station. Funding was also provided by the Great Northern Landscape Conservation Cooperative (GNLCC) and North Pacific Landscape Conservation Cooperative (NPLCC) with additional funds and in-kind support from the USDA Forest Service (USFS), US Geological Survey (USGS), US Fish and Wildlife Service (USFWS), California Fish Passage Forum, and National Aeronautics and Space Administration (NASA).

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Supported Query Formats: JSON, geoJSON, PBF

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Drawing Info:

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Labeling Info:

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Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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