Difference between revisions of "Carneros Watershed: Erosivity"
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− | + | [[Image:|200px|thumb]] | |
+ | * [[Media:|PDF file - for printing]] | ||
+ | * [[Media:|JPG file]] | ||
+ | |||
+ | == Metadata == | ||
+ | |||
+ | * Data Source: USGS, 1/3 arc second, Digital Elevation Model: See [[Carneros Watershed: Map of Elevation]] | ||
+ | * Data analysis: ArcMap | ||
+ | * Map produced by: Kathy | ||
+ | * 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. | ||
+ | |||
+ | == Links == | ||
+ | |||
+ | * [[Maps of the Carneros Watershed]] |
Revision as of 16:11, 10 February 2011
[[Image:|200px|thumb]]
- [[Media:|PDF file - for printing]]
- [[Media:|JPG file]]
Metadata
- Data Source: USGS, 1/3 arc second, Digital Elevation Model: See Carneros Watershed: Map of Elevation
- Data analysis: ArcMap
- Map produced by: Kathy
- 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.