{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "Ridges protected by the Mountain and Hillside Development Ordinance", "description": "
  1. Converted filled DEM (for the whole county) to an ASCII file<\/SPAN><\/SPAN><\/P><\/LI>

  2. Imported the DEM ASCII file into SAGA<\/SPAN><\/SPAN><\/P><\/LI>

  3. Executed Topographic Position Index (TPI) tool on this DEM (tool found in the Terrain Analysis > Morphometry toolset)<\/SPAN><\/SPAN><\/P><\/LI>

  4. Saved the Output file in SAGA to an SDAT file<\/SPAN><\/SPAN><\/P><\/LI>

  5. Used the Raster to Other Format tool in ArcMap to convert the SDAT file to a TIFF<\/SPAN><\/SPAN><\/P><\/LI>

  6. Played with different classification schemes in ArcMap to figure out how to best delineate the ridges; settled on 2 classes: -176.2945251 \u2013 3 and 3 \u2013 196.7315979. The second class represented the ridge tops fairly well. <\/SPAN><\/SPAN><\/P><\/LI>

  7. Used the Reclassify tool to create a new raster layer with only this second class (the first was changed to NoData) <\/SPAN><\/SPAN><\/P><\/LI>

  8. The Extract by Mask tool was used to clip this raster layer to the Protected Ridge Areas vector layer<\/SPAN><\/SPAN><\/P><\/LI>

  9. The Raster to Polygon tool was used to convert this raster layer into a polygon layer. The \u201cSimplify Polygons\u201d box was left unchecked <\/SPAN><\/P><\/LI><\/OL><\/DIV><\/DIV><\/DIV>", "summary": "Ridges protected by the Mountain and Hillside Development Ordinance", "title": "MHD_ProtectedRidges", "tags": [ "Mountains", "ridges" ], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 150000000, "maxScale": 5000, "spatialReference": "", "accessInformation": "Jackson County GIS Department", "licenseInfo": "" }