Possible Costs Associated with Investigating and Mitigating Some Geologic Hazards in Rural Parts of San Mateo County, California

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/00-127/metadata.faq.html
Description This publication addresses deep-seated landslide susceptibility, debris flow susceptibility, and other geologic hazards in rural parts of western San Mateo County. The report also estimates possible costs of investigating and mitigating the landslide haz
Originators Brabb, Earl E.; Roberts, Sebastian; Cotton, William R.; Kropp, Alan L.; Wright, Robert H.; Zinn, Erik N.; Mills, Suzanne K.; Barnes, Jason B.; and Marsolek, Joanna E.
Publication U.S. Geological Survey Open-File Report 00-127

Related topics

States or counties

Overview of attributes

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.

OF00-127_4A.PAT

Attribute table of OF00-127_4A.PAT.

Label Definition
PTYPE Landslide label

OF00-127_4A.AAT

Attribute table of OF00-127_4A.

Label Definition
LTYPE Type of geologic or geographic feature denoted by a line in the database.

OF00-127_4B.PAT

Attribute table of OF00-127_4B.

Label Definition
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.

OF00-127_4B.AAT

Attribute table of OF00-127_4B.

Label Definition
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.

OF00-127_4C.PAT

Attribute table of OF00-127_4C.

Label Definition
PTYPE Landslide label

OF00-127_4C.AAT

Attribute table of OF00-127_4C.

Label Definition
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.

OF00-127_3A.VAT

Attribute table of OF00-127_3A.

Label Definition
VALUE debris flow susceptibility
COUNT Number of GRID cells of a VALUE

OF00-127_5A.VAT

Attribute table of OF00-127_5A.

Label Definition
VALUE relative landslide susceptibility
COUNT Number of GRID cells of a VALUE