Online link | https://geo-nsdi.er.usgs.gov/metadata/open-file/01-131/metadata.faq.html |
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Description | This data set maps and describes the geology of the San Bernardino North 7.5' quadrangle, San Bernardino County, California. Created using Environmental Systems Research Institute's ARC/INFO software, the data base consists of the following items: (1) a m |
Originators | Miller, Fred K. |
Publication | U.S. Geological Survey Open-File Report 01-131 |
The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California). Almost all the attributes in the attribute tables of the landslide inventory coverages included in the report are set or calculated by ARC/INFO. The exceptions are "coveragename"-ID, LTYPE, and PTYPE. " coveragename"-ID is required by internal policy to be sequential. This ensures the highest compatibility of our databases with other GISs. Therefore "coveragename"-ID is calculated equal to " coveragename"#, which is a unique, sequential integer assigned by ARC/INFO to each data record. LTYPE and PTYPE are author added items to the coverage AAT or PAT that are used to describe the type of line (LTYPE) or landslide area (PTYPE) being recorded. The PTYPEs define the degree of confidence which the author had when identifying the area as a landslide deposit. All coverages include these items in the data structure. Each item has WIDTH 35, OUTPUT 35, TYPE C. For the susceptibility grids, integers stored in the database field VALUE of the VAT correspond to susceptibility values. In the debris flow susceptibility grids, the value '15' designates cells with a slope greater than or equal to 15%, which corresponds to areas susceptible to debris flows. In the landslide susceptibility grids, each cell is assigned a relative susceptibility value of 0 through 7. The slope grids contain slope data stored as continuous floating-point numbers, and thus a VAT is not present for these grids.
This report combined with the explanatory pamphlet: of00-127_2.
Attribute table of OF00-127_4A.PAT.
Label | Definition |
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PTYPE | Landslide label |
Attribute table of OF00-127_4A.
Label | Definition |
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LTYPE | Type of geologic or geographic feature denoted by a line in the database. |
Attribute table of OF00-127_4B.
Label | Definition |
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PTYPE | refer to the definition of PTYPE listed for OF00-127_4A.PAT, as all PTYPEs in OF00-127_4A.PAT are identical to those in OF00-127_4B.PAT. |
Attribute table of OF00-127_4B.
Label | Definition |
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LTYPE | refer to LTYPE definitions listed under OF00-127_4A.AAT, as all LTYPEs in OF00-127_4A.AAT are identical to those in OF00-127_4B.AAT. |
Attribute table of OF00-127_4C.
Label | Definition |
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PTYPE | Landslide label |
Attribute table of OF00-127_4C.
Label | Definition |
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LTYPE | refer to LTYPE definitions listed under OF00-127_4A.AAT, as all LTYPEs in OF00-127_4A.AAT are identical to those in OF00-127_4C.AAT. |
Attribute table of OF00-127_3A.
Label | Definition |
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VALUE | debris flow susceptibility |
COUNT | Number of GRID cells of a VALUE |
Attribute table of OF00-127_5A.
Label | Definition |
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VALUE | relative landslide susceptibility |
COUNT | Number of GRID cells of a VALUE |