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Database of Geographic Information: slope30_utm
Identifier:226_1
Publication date:2004
Author(s):
Alexander Buyantuyev
Abstract:
This dataset has been created to meet the needs of the research community of Arizona State University. The slope grid identifies the rate of maximum change in elevation value from each grid cell and is calculated in degrees. The data is derived from the 30 meter Digital Elevation Model created for Central Arizona - Phoenix LTER (dem30_utm).
Keywords:
SLOPE, SONORAN DESERT, PHOENIX, urban, Elevation, informatics, caplter, Central Arizona Phoenix Longterm Ecological Research, metropolitan area, Arizona, Digital Elevation Model, inclination, steepness, elevation gradient, Database Remote Sensing GIS Applications, Project id 1, gis, remote sensing
Temporal Coverage:
1954-01-01 - 1984-01-01
Geographic Coverage:
Geographic Description:Central Arizona Phoenix
Bounding Coordinates:
Longitude:-113.291291 to -111.267307
Latitude:33.909966 to 32.888242
Contact:
Data Manager, Global Institute of Sustainability, Arizona State University,
Global Institute of Sustainability, Arizona State University, POB 875401,TEMPE
caplter.data@asu.edu
Methods used in producing this dataset:
Grid generation
The slope grid was generated using the previsouly created 30 meter DEM (dem30_utm) in ArcInfo's grid function. Values in the grid were converted from floating point to integer format and value attribute table (.vat) was built. Although the original values are truncated, the accuray is not significantly affected. Degree of slope is a value between 0 and 90.
Entities:
Raster: slope30_utm
download
Attributes:
Attribute:Count
Description:Total number of grid cells of each particular value
Measurement Unit:number
Attribute:ObjectID
Description:Internal feature number.
Attribute:Value
Description:Slope in degrees
Measurement Unit:degree
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