Difference between revisions of "Carneros Watershed: Slope"
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# ArcGIS -> Spatial Analyst Toolbar -> Surface Analysis -> Slope | # ArcGIS -> Spatial Analyst Toolbar -> Surface Analysis -> Slope | ||
− | # Input Surface: USGS 1/3 arc second DEM. DEM was projected so that x,y measurement units matched the vertical measurement unit. | + | # Input Surface: USGS 1/3 arc second DEM. DEM was projected so that x,y measurement units matched the vertical measurement unit. This projection change creates some visual distortion in the final image from the shift. |
# Output Measurement: Slope was calculated in degrees. | # Output Measurement: Slope was calculated in degrees. | ||
# Z Factor: The Z-factor was set to 1 because the DEM was projected into UTM to match units of elevation. | # Z Factor: The Z-factor was set to 1 because the DEM was projected into UTM to match units of elevation. |
Revision as of 15:33, 10 February 2011
Metadata
- Original source of data: See Carneros Creek Watershed: Map of Elevation
- Data analysis: ArcMap
- Data Source: USGS, 1/3 arc second, Digital Elevation Model.
- Map produced by: Kyle Stoner
- Coordinate system: UTM Zone 10
- Datum: NAD 83
Processing Steps
- ArcGIS -> Spatial Analyst Toolbar -> Surface Analysis -> Slope
- Input Surface: USGS 1/3 arc second DEM. DEM was projected so that x,y measurement units matched the vertical measurement unit. This projection change creates some visual distortion in the final image from the shift.
- Output Measurement: Slope was calculated in degrees.
- Z Factor: The Z-factor was set to 1 because the DEM was projected into UTM to match units of elevation.
- Output Cell Size: Default value automatically used the input cell size.
- Output Raster: name and location of slope raster to be created.
- Color ramp was set to "Partial Spectrum" with 9 classes ranging from 0-75 degrees.