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Service Description: Climate change is projected to alter the flow regimes of streams and rivers, with consequences for physical processes, aquatic organisms, and water resource management. To study these hydrologic changes, we have developed a database of flow metrics for streams in the western US under historical conditions and climate change scenarios. These are based on daily simulations of the Variable Infiltration Capacity (VIC) macroscale hydrologic model produced by the University of Washington Climate Impacts Group. The US Forest Service Rocky Mountain Research Station used these model outputs to calculate a set of summary flow metrics to describe key attributes of the flow regime for each stream segment in the 1:100,000 scale National Hydrography Dataset (NHDPlus version 2, September 2012 snapshot) in the western US. Datasets are available for the historical period (1977-2006), the 2040s, and the 2080s. Future datasets (2040s and 2080s) are based on the ensemble mean of ten global climate models associated with the A1B emissions scenario. Please see the User Guide for more information and important caveats on appropriate use. https://www.fs.fed.us/rm/boise/AWAE/projects/modeled_stream_flow_metrics.shtml.This dataset has been organized by metric instead of by time period.

Map Name: WO_OSC_R5_Hydrology_01

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• Mean Daily Flow (Year-Round) (Percent Change) (0)
• Mean Daily Flow (Summer) (Percent Change) (3)
• 1.5-Year Flood (Percent Change) (6)
• 25-Year Flood (Percent Change) (9)
• Number of 95th Percentile Floods Per Winter (Percent Change) (12)
• Center of Flow Mass (Change in Days) (15)

Description: Climate change is projected to alter the flow regimes of streams and rivers, with consequences for physical processes, aquatic organisms, and water resource management. To study these hydrologic changes, we have developed a database of flow metrics for streams in the western US under historical conditions and climate change scenarios. These are based on daily simulations of the Variable Infiltration Capacity (VIC) macroscale hydrologic model produced by the University of Washington Climate Impacts Group. The US Forest Service Rocky Mountain Research Station used these model outputs to calculate a set of summary flow metrics to describe key attributes of the flow regime for each stream segment in the 1:100,000 scale National Hydrography Dataset (NHDPlus version 2, September 2012 snapshot) in the western US. Datasets are available for the historical period (1977-2006), the 2040s, and the 2080s. Future datasets (2040s and 2080s) are based on the ensemble mean of ten global climate models associated with the A1B emissions scenario. Please see the User Guide for more information and important caveats on appropriate use. https://www.fs.fed.us/rm/boise/AWAE/projects/modeled_stream_flow_metrics.shtml.This dataset has been organized by metric instead of by time period.

Copyright Text: The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.

Spatial Reference: 4269  (4269)


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Spatial Reference: 4269  (4269)

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Document Info:

Title: Western U.S. Stream Flow Metrics
Author:
Comments: Climate change is projected to alter the flow regimes of streams and rivers, with consequences for physical processes, aquatic organisms, and water resource management. To study these hydrologic changes, we have developed a database of flow metrics for streams in the western US under historical conditions and climate change scenarios. These are based on daily simulations of the Variable Infiltration Capacity (VIC) macroscale hydrologic model produced by the University of Washington Climate Impacts Group. The US Forest Service Rocky Mountain Research Station used these model outputs to calculate a set of summary flow metrics to describe key attributes of the flow regime for each stream segment in the 1:100,000 scale National Hydrography Dataset (NHDPlus version 2, September 2012 snapshot) in the western US. Datasets are available for the historical period (1977-2006), the 2040s, and the 2080s. Future datasets (2040s and 2080s) are based on the ensemble mean of ten global climate models associated with the A1B emissions scenario. Please see the User Guide for more information and important caveats on appropriate use. https://www.fs.fed.us/rm/boise/AWAE/projects/modeled_stream_flow_metrics.shtml. This dataset has been organized by metric instead of by time period.
Subject: A dataset of modeled flow metrics for streams in major river basins of the Western US for historical and future climate change scenarios
Category:
Keywords: USDA Forest Service,USFS,Office of Sustainability and Climate,OSC,hydrology,streams,stream flow,variable infiltration capacity,VIC,national hydrography dataset,NHD
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