WMS:NSS Region Coverage: Difference between revisions
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An NSS Region coverage can be generated so that regions can automatically be mapped to a drainage coverage when performing hydrologic analysis using the NSS regression equations. Individual state maps can be found at the USGS website: http://water.usgs.gov/software/NSS/ (Look at the bottom of the page and select | An NSS Region coverage can be generated so that regions can automatically be mapped to a drainage coverage when performing hydrologic analysis using the NSS regression equations. Individual state maps can be found at the USGS website: http://water.usgs.gov/software/NSS/ (Look at the bottom of the page and select the state). If wanting to digitize the state, then download the image from the USGS website and save the picture as either a *.tif or *.jpg image (many times the default will be a *.gif image) using any type of imaging software program. Load the *.tif, or *.jpg image into WMS and [[Registering an Image|register]] according to the latitude and longitude coordinates found on the map. Then [[Coordinate Conversions|convert the coordinates]] to the coordinate system the user will be delineating the watershed in. With the image in the background, a user can easily digitize the lines and build the polygons of the coverage. Finally assign the attributes (state and region) to the polygons and save it as a map file. This NSS coverage file can then be used for any watershed within the given state. | ||
==Related Topics== | ==Related Topics== | ||
Revision as of 17:48, 25 August 2014
An NSS Region coverage can be generated so that regions can automatically be mapped to a drainage coverage when performing hydrologic analysis using the NSS regression equations. Individual state maps can be found at the USGS website: http://water.usgs.gov/software/NSS/ (Look at the bottom of the page and select the state). If wanting to digitize the state, then download the image from the USGS website and save the picture as either a *.tif or *.jpg image (many times the default will be a *.gif image) using any type of imaging software program. Load the *.tif, or *.jpg image into WMS and register according to the latitude and longitude coordinates found on the map. Then convert the coordinates to the coordinate system the user will be delineating the watershed in. With the image in the background, a user can easily digitize the lines and build the polygons of the coverage. Finally assign the attributes (state and region) to the polygons and save it as a map file. This NSS coverage file can then be used for any watershed within the given state.
Related Topics
WMS – Watershed Modeling System | ||
|---|---|---|
| Modules: | Terrain Data • Drainage • Map • Hydrologic Modeling • River • GIS • 2D Grid • 2D Scatter |  |
| Models: | CE-QUAL-W2 • GSSHA • HEC-1 • HEC-HMS • HEC-RAS • HSPF • MODRAT • NSS • OC Hydrograph • OC Rational • Rational • River Tools • Storm Drain • SMPDBK • SWMM • TR-20 • TR-55 | |
| Toolbars: | Modules • Macros • Units • Digitize • Static Tools • Dynamic Tools • Drawing • Get Data Tools | |
| Aquaveo | ||
