| snippet:
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Available water supply varies greatly across the United States depending on topography, climate, elevation and geology. Forested and mountainous locations, such as national forests, tend to receive more precipitation than adjacent non-forested or low-lying areas. However, contributions of national forest lands to regional streamflow volumes is largely unknown. Using outputs from the Variable Infiltration Capacity hydrologic model, we calculated mean annual and mean summer (July and August) streamflow metrics based on total flow and flow from national forest lands for each 1:100,000 scale National Hydrography Dataset stream reach in the contiguous United States. Specifically, this data publication contains twenty-one comma-delimited ASCII text files (for different drainage areas and processing units across the United States) containing 1915-2011 mean annual flow and mean summer flow. These files also contain the mean annual and mean summer flows from National Forest System (NFS) lands as well as the portion of total mean annual and summer flow contributed by flow from NFS lands. These data provide insight into 1915-2011 hydrologic regimes and national forest contributions to total water yield. These non-spatial files were then merged and joined to the September 2012 snapshot of the National Hydrography Dataset (NHD), version 2. This tiled map service depicts the mean summer fraction of flows from Forest Service lands. Note: 'Forest Service lands' are here defined as those lands within the Forest Service administrative boundaries; these include some inholdings and other non-USFS lands enclosed within these boundaries. |
| summary:
|
Available water supply varies greatly across the United States depending on topography, climate, elevation and geology. Forested and mountainous locations, such as national forests, tend to receive more precipitation than adjacent non-forested or low-lying areas. However, contributions of national forest lands to regional streamflow volumes is largely unknown. Using outputs from the Variable Infiltration Capacity hydrologic model, we calculated mean annual and mean summer (July and August) streamflow metrics based on total flow and flow from national forest lands for each 1:100,000 scale National Hydrography Dataset stream reach in the contiguous United States. Specifically, this data publication contains twenty-one comma-delimited ASCII text files (for different drainage areas and processing units across the United States) containing 1915-2011 mean annual flow and mean summer flow. These files also contain the mean annual and mean summer flows from National Forest System (NFS) lands as well as the portion of total mean annual and summer flow contributed by flow from NFS lands. These data provide insight into 1915-2011 hydrologic regimes and national forest contributions to total water yield. These non-spatial files were then merged and joined to the September 2012 snapshot of the National Hydrography Dataset (NHD), version 2. This tiled map service depicts the mean summer fraction of flows from Forest Service lands. Note: 'Forest Service lands' are here defined as those lands within the Forest Service administrative boundaries; these include some inholdings and other non-USFS lands enclosed within these boundaries. |
| extent:
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[[-124.762581117,24.539838696],[-66.949828407,49.376613123]] |
| accessInformation:
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US Forest Service Enterprise Map Services Program |
| thumbnail:
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thumbnail/thumbnail.png |
| maxScale:
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1.7976931348623157E308 |
| typeKeywords:
|
["Data","Service","Map Service","ArcGIS Server"] |
| description:
|
Map service depicting mean summer flow from Forest Service lands. Note: 'Forest Service lands' are here defined as those lands within the Forest Service administrative boundaries; these include some inholdings and other non-USFS lands enclosed within these boundaries. This feature class was generated from the original study "Modeled historical streamflow metrics for the contiguous United States and National Forest Lands" (Luce, et. al., 2017) and the 2012 snapshot of the stream layer from the National Hydrography Dataset (NHD). More information pertaining to the original streamflow dataset is available on the Research Data Archive: https://www.fs.usda.gov/rds/archive/Product/RDS-2017-0046. |
| licenseInfo:
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|
| catalogPath:
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|
| title:
|
EDW_HydroPercentStreamFlowNFSSummer_01 |
| type:
|
Map Service |
| url:
|
|
| tags:
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["USDA Forest Service","USFS","Rocky Mountain Research Station","RMRS","Office of Sustainability and Climate","OSC","hydrology","streamflow","streams"] |
| culture:
|
en-US |
| name:
|
EDW_HydroPercentStreamFlowNFSSummer_01 |
| guid:
|
639D90D8-483C-43AB-958F-F14479D479E3 |
| minScale:
|
0 |
| spatialReference:
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WGS_1984_Web_Mercator_Auxiliary_Sphere |