Metadata: Identification_Information: Citation: Citation_Information: Originator: Pike, Richard J. Originator: Graymer, Russell W. Originator: Roberts, Sebastian Originator: Kalman, Naomi B. Originator: Sobieszczyk, Steven Publication_Date: 2001 Publication_Time: Title: Map and map database of susceptibility to slope failure by sliding and earthflow in the Oakland area, California Edition: 1.0 Geospatial_Data_Presentation_Form: susceptiblity map Series_Name: U.S. Geological Survey Miscellaneous Field Studies Report Issue_Identification: MF-2385 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Other_Citation_Details: Online_Linkage: http://pubs.usgs.gov/mf/2002/2385/mf2385 Description: Abstract: Map data that predict the varying likelihood of landsliding can help public agencies make informed decisions on land use and zoning. This map, prepared in a geographic information system from a statistical model, estimates the relative likelihood of local slopes to fail by two processes common to an area of diverse geology, terrain, and land use centered on metropolitan Oakland. The model combines the following spatial data: (1) 120 bedrock and surficial geologic-map units, (2) ground slope calculated from a 30-m digital elevation model, (3) an inventory of 6,714 old landslide deposits (not distinguished by age or type of movement and excluding debris flows), and (4) the locations of 1,192 post-1970 landslides that damaged the built environment. The resulting index of likelihood, or susceptibility, plotted as a 1:50,000-scale map, is computed as a continuous variable over a large area (872 km2) at a comparatively fine (30 m) resolution. This new model complements landslide inventories by estimating susceptibility between existing landslide deposits, and improves upon prior susceptibility maps by quantifying the degree of susceptibility within those deposits. Susceptibility is defined for each geologic-map unit as the spatial frequency (areal percentage) of terrain occupied by old landslide deposits, adjusted locally by steepness of the topography. Susceptibility of terrain between the old landslide deposits is read directly from a slope histogram for each geologic-map unit, as the percentage (0.00 to 0.90) of 30-m cells in each one-degree slope interval that coincides with the deposits. Susceptibility within landslide deposits (0.00 to 1.33) is this same percentage raised by a multiplier (1.33) derived from the comparative frequency of recent failures within and outside the old deposits. Positive results from two evaluations of the model encourage its extension to the 10-county San Francisco Bay region and elsewhere. A similar map could be prepared for any area where the three basic constituents, a geologic map, a landslide inventory, and a slope map, are available in digital form. Added predictive power of the new susceptibility model may reside in attributes that remain to be explored-among them seismic shaking, distance to nearest road, and terrain elevation, aspect, relief, and curvature. Purpose: Mitigation is superior to post-disaster response in reducing the billions of dollars in losses resulting from U.S. natural disasters, and information that predicts the varying likelihood of geologic hazards can help public agencies improves the necessary decision making on land use and zoning. Accordingly, this map was created to increase the resistance of one urban area, metropolitan Oakland, California, to landsliding. Prepared in a geographic information system from a statistical model, the map estimates the relative likelihood of local slopes to fail by two processes common to this area of diverse geology, terrain, and land use. Supplemental_Information: Procedures_Used: The databases in this report were compiled in ARC/INFO, a commercial Geographic Information System (Environmental Systems Research Institute, Redlands, California), with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The files are either in GRID (ARC/INFO raster data) Format or in COVERAGE (Arc/Info vector data). The grid and coverages are stored in uncompressed ARC export format (ARC/INFO version 7.2). ARC/INFO export files (files with the .e00 extension) can be converted into an ARC/INFO grid in ARC/INFO (see below) and can be read by some other Geographic Information Systems, such as MapInfo via ArcLink and ESRI's ArcView (version 1.0 for Windows 3.11 is for free from ESRI's web site: http://www.esri.com). The digital compilation was done in version 7.2 of ARC/INFO with version 3.0 of the menu interface ALACARTE (Fitzgibbon and Wentworth, 1991, Fitzgibbon, 1991, Wentworth and Fitzgibbon, 1991). The original datasets were created from digitized mylar overlays of landslide inventories (ofr 75-277) created by Tor Nilsen, and digitized by Sebastian Roberts. These coverages were griddedand analysed using the Arc/Info GRID feature. An AML was written to create the susceptibility grid using USGS DEMs from the http://bard.usgs.gov website, the geology grid Mf-2342, and the new landslide (ofr 75-277) grid. Five other coverage layers, not used for anaylsis were used as referencing layers for the final maps publication. These coverages include a water layer, a highway layer, a road network layer, a contour topography layer, and a cultural base map layer. This coverage layers are included with this publication to allow reproduction of finally map. Revisions: 2/11/02 This is the pre-release version of the report. There have been no revisions to any part of the report. Data Revision List File Report Version Last Updated MF-2385_3.e00.gz 1.0 MF-2385_5a.e00.gz 1.0 MF-2385_5b.e00.gz 1.0 MF-2385_5c.e00.gz 1.0 MF-2385_5d.e00.gz 1.0 MF-2385_5e.e00.gz 1.0 sp2utm.prj 1.0 utm2sp.prj 1.0 import.aml 1.0 mf2349d.met 1.0 MF-2385revs_1a.txt 1.0 MF-2385_6a.eps 1.0 MF-2385_6b.pdf 1.0 meta-2385.txt 1.0 Reviews_Applied_to_Data: This report has undergone two scientific peer reviews, one digital database review, one review for conformity with geologic names policy, And review of the plotfiles for conformity with USGS map standards. Related_Spatial_and_Tabular_Data_Sets: This report consists of a set of landslide suceptiblity map database files (Arc/Info coverages & grids) and supporting text and plotfiles. In addition, the report includes two sets of plotfiles (PostScript and PDF format) that will generate map sheets and pamphlets similar to a traditional USGS Miscellaneous Field Studies Report. These files are described below: ARC/INFO Resultant Description of Grid ----------- ----------- -------------------------------- MF-2385_3.e00 susgrd_utm Susceptiblity grid ASCII text files, including explanatory text, ARC/INFO key files, PostScript and PDF plot files, and a ARC Macro Language file for conversion of ARC export files into ARC coverages: MF-2385_2a.txt A text-only file containing an unformatted version of MF-2385_6a.eps. import.aml ASCII text file in ARC Macro Language to convert ARC export files to ARC coverages in ARC/INFO. MF-2385_6a.eps A PostScript plottable file containing an image of the susceptibility map and base maps at a scale of 1:24,000, along with a simple map key. MF-2385_6b.pdf A PDF version of MF-2385_6a.eps. Base maps Base map layers were derived from published digital maps (Aitken, 1997) obtained from the USGS Publications Website (http://pubs.usgs.gov/of/1997/of97-500/ ). Please see the website for more detailed information about the original databases. Because the base map digital files are already available at the website mentioned above, they are not included in the digital database package. Below are export files of the five coverages used for the final version of the map. As mentioned early, these coverages are not used in any way for analysis, but are need for spatial placement. MF-2385_5a.e00 drain drainage base map for Oakland area MF-2385_5b.e00 culture cultural base map, including names MF-2385_5c.e00 roads street pattern and road network MF-2385_5d.e00 hwys interstate highways MF-2385_5e.e00 hydro streams, lakes, bays, rivers Other_References_Cited: Aitken, D.S., 1997, A digital version of the 1970 U.S. Geological Survey topographic map of the San Francisco Bay region: U.S. Geological Survey Open-File Report 97-500, 3 map sheets, scale 1:125,000, [available on the World Wide Web at http://pubs.usgs.gov/of/1997/of97-500/ ]. 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Pike, R.J., Graymer, R.W., and Roberts, Sebastian, 1999b, Regional modeling of landslide susceptibility in the San Francisco Bay region, California [abs.]: Eos Transactions of the American Geophysical Union, v. 80, no. 46 (Supplement), p. F450. Pike, R.J., Cannon, S.H., Ellen, S.D., Graham, S.E., and others, 1998, Slope failure and shoreline retreat during northern California's latest El Ni–o: GSA Today, v. 8, no. 8, p. 1-6. Platt, R.H., ed., with O'Donnell, K.B., and Scherf, David, contributors, 1999, Disasters and democracy-the politics of extreme natural events: Washington, D.C., Island Press, 335 p. Radbruch, D.H., 1969, Areal and engineering geology of the Oakland East quadrangle, California: U.S. Geological Survey Geologic Quadrangle Map GQ-769, scale 1:24,000. Radbruch, D.H., 1970, Map showing areas of relative amounts of landslides in California: U.S. Geological Survey Open-File Report 70-270, 36 p., scale 1:500,000. Radbruch, D.H., and Case, J.E., 1967, Preliminary geologic map and engineering geologic information, Oakland and vicinity, California: U.S. Geological Survey, Open-File Report 67-183, 2 sheets, scale 1:24,000. Radbruch, D.H., and Weiler, L.M., 1963, Preliminary report on landslides in a part of the Orinda Formation, Contra Costa County, California: U.S. Geological Survey Open-File Report 689, 35 p., 14 pp. of tables, scale 1:24,000. Rantz, S.E., 1971, Iso-hyetal map of San Francisco Bay Region, California, showing mean annual precipitation and precipitation depth-duration- frequency data: San Francisco Bay Region Environmental and Resources Planning Study Basic Data Contribution 25, 23 p., scale 1:500,000. Reneau, S.L., Dietrich, W.E., Dorn,R.I., Berger, C.R., and Rubin, Meyer, 1986, Geomorphic and paleoclimate implications of latest Pleistocene radiocarbon dates from colluvium-mantled hollows, California: Geology, v. 14, no. 8, p. 655-658. Richter, Hans, 1962, Eine neue Methode der gro§ma§stŠblichen Kartierung des Reliefs [a new method of large-scale relief mapping]: Petermanns Geographische Mitteilungen, v. 106, no. 4, p. 309-312. Ritchie, A.M., 1958, Recognition and identification of landslides, chap. 4 of Eckel, E.D., ed., Landslides and engineering practice: Wash., D.C., Highway Research Board, National Research Council, Special Report 29, p. 48-68. Roberts, Sebastian, Barron, Andrew, Brabb, E.E., and Pike, R.J., 1998, Digital compilation of "Preliminary map of landslide deposits in Santa Cruz County, California, by Cooper-Clark and Associates, 1975"-a digital map database: U.S. Geological Survey Open-File Report 98-792, 22 p., [available on the World Wide Web at http://pubs.usgs.gov/ of/1998/of98-792]. Roberts, Sebastian, Roberts, M.A., Brennan, E.M., and Pike, R.J., 1999, Landslides in Alameda County, California, a digital database extracted from Preliminary Photointerpretation Maps of Surficial Deposits by T.H. Nilsen in USGS Open-File Report 75-277: U.S. Geological Survey Open-File Report 99-504, 20 p., [available on the World Wide Web at http://pubs.usgs.gov/of/1999/of99-504/]. Rogers, T.H., and Armstrong, C.F., 1971, Environmental geologic analysis of the Santa Cruz Mountains study area, Santa Clara County, California: California Division of Mines and Geology, Open-File Report 72-21, 101 p., scale 1:12,000. Roth, R.A., 1983, Factors affecting landslide-susceptibility in San Mateo County, California: Bulletin of the Association of Engineering Geologists, v. 20, no. 4, p. 353-372. Rowbotham, D.N., and Dudycha, Douglas, 1998, GIS modelling of slope stability in Phewa Tal watershed, Nepal: Geomorphology, v. 26, nos. 1-3, p. 151-170. Schmidt, K.M., and Montgomery, D.R., 1995, Limits to relief: Science, v. 270, no.5236, p. 617-620. Schmidt, K.M., and Montgomery, D.R., 1996, Rock mass strength assessment for bedrock landsliding: Environmental and Engineering Geoscience, v. 2, no. 3, p. 325-338. Soeters, Robert, and van Westen, C.J., 1996, Slope instability recognition, analysis, and zonation in Turner, K.A., and Schuster, R.L., eds., Landslides, investigation and mitigation: Wash., D.C., Transportation Research Board, National Research Council, Special Report 247, p. 129-177. Stromberg, P.A., 1967, Landslide problems related to housing development in central California: San Francisco, San Francisco State College, unpublished M.A. thesis, 137 p. Turrini, M.C., and Visintainer, Paola, 1998, Proposal of a method to define areas of landslide hazard and application to an area of the Dolomites, Italy: Engineering Geology, v. 50, nos. 3-4, p. 255-265. U.S. Geological Survey, 1993, Digital elevation models-data users guide 5: Reston, Va., U.S. Geological Survey, 48 p. Van Horn, Richard, 1972, Relative slope stability map of the Sugar House quadrangle, Salt Lake County, Utah: U.S. Geological Survey Miscellaneous Investigations Series Map I-766-E, 1:24,000 scale. Van Westen, C.J., Rengers, N., Terlien, M.T.J., and Soeters, R., 1997, Prediction of the occurrence of slope instability phenomena through GIS-based hazard zonation: Geologische Rundschau, v. 86, no. 2, p. 404-414. Varnes, D.J., 1978, Slope movement and types and processes, chap. 2 of Schuster, R.L., and Krizek, R.J., eds., Landslides: analysis and control: Wash., D.C., Transportation Research Board, National Academy of Sciences, Special Report 176, p. 11-33. Wagner, J.R., 1978, Late Cenozoic history of the Coast Ranges east of San Francisco Bay: Berkeley, University of California, Ph.D. dissertation, 160p., 12 pls. Waltz, J.P., 1971, An analysis of selected landslides in Alameda and Contra Costa Counties, California: Bulletin of the Association of Engineering Geologists, v. 8, no. 2, p. 153-163. Wentworth, C.M., 1997, General distribution of geologic materials in the San Francisco Bay region, California, 1:125,000 scale-a digital map database: U.S. Geological Survey Open-File Report 97-744, 24 p., [available on the World Wide Web at http://pubs.usgs.gov/of/1997/of97-744]. Wentworth, C.M., Ellen, S.D., and Mark, R.K., 1987, Improved analyses of regional engineering geology using geographic information systems, in GIS- San Francisco, International Conference, Exhibits, and Workshops on Geographic Information Systems, 2nd, San Francisco, October 26-30, 1987, Proceedings: American Society for Photogrammetry and Remote Sensing/ American Congress on Surveying and Mapping, v. 2, p. 636-649. Wentworth, C.M., Graham, S.E., Pike, R.J., Beukelman, G.S., Ramsey, D.W., and Barron, A.D., 1997, Summary distribution of slides and earth flows in the San Francisco Bay region, California: U.S. Geological Survey Open-File Report 97-745 C, 10 p., 11 sheets, [available on the World Wide Web at http://pubs.usgs.gov/of/1997/of97-745/of97-745c.html]. Wieczorek, G.F., 1984, Preparing a detailed landslide-inventory map for hazard evaluation and reduction: Bulletin of the Association of Engineering Geologists, v. 21, no. 3, p. 337-342. Wills, C.J., and Majmundar, H.H., 2000, Landslide hazard Map of southwest Napa County, California: California Division of Mines and Geology, Open- File Report 99-06, scale 1:24,000. Wilson, R.I., McCrink, T.P., McMillan, J.R., and Haydon, W.D., 2000, Earthquake-induced landslide zones in the cities of Oakland and Piedmont, Alameda County, California, in Seismic hazard evaluation of the cities of Oakland and Piedmont, Alameda County, California: California Division of Mines and Geology Open-File Report 99-11, Section 2, p. 35-54. scale 1:24,000, [available on the World Wide Web at ftp://ftp.consrv.ca.gov/pub/dmg/shezp/evalrpt/OFR99-11.pdf]. Wilson, R.C., and Jayko, A.S., 1997, Preliminary maps showing rainfall Thresholds for debris-flow activity, San Francisco Bay region, California: U.S. Geological Survey Open-File Report 97-745 F, 20 p., 2 sheets, scale 1:275,000, [available on the World Wide Web at http://pubs.usgs.gov/of/1997/of97-745/of97-745f.html]. W—jcik, Antoni, 1997, Landslides in the Koszarawa drainage basin-structural and geomorphological control (western Carpathians, Beskid Zywiecki Mts.): Biuletyn Panstwowego Instytutu Geologicznego, no. 376, p. 31-42. Yanagisawa, Eiji, and Umemura, Jun, 1999, Geotechnical features of the Hachimantai-Sumikawa landslide: Journal of Natural Disaster Science, v. 20, no. 2, p. 83-92. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2001 Currentness_Reference: The date given is the publication date. The information in the report is the most up-to-date available at the time of publication. Status: Progress: Pre-Publication Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.3750000 East_Bounding_Coordinate: -122.0000000 North_Bounding_Coordinate: 38.00000000 South_Bounding_Coordinate: 37.62500000 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: landslide Theme_Keyword: susceptiblity Theme_Keyword: earthflow Theme_Keyword: mass movement Theme_Keyword: hazard Theme_Keyword: debris flow Theme_Keyword: slope Theme_Keyword: failure Theme_Keyword: slide Theme_Keyword: earthquake Theme_Keyword: el nino Theme_Keyword: thunderstorm Theme_Keyword: usgs Theme_Keyword: fema Theme_Keyword: cdmg Place: Place_Keyword_Thesaurus: None Place_Keyword: United States of America Place_Keyword: California Place_Keyword: Oakland Place_Keyword: Berkeley Place_Keyword: Piedmont Access_Constraints: None Use_Constraints: Uses of this digital landslide susceptiblity map should not violate the spatial resolution of the data. Although the digital form of the data removes the constraint imposed by the scale of a paper map, the detail and accuracy inherent in map scale are also present in the digital data. The fact that this database was edited for a scale of 1:50,000 means that higher resolution information, greater than 30 meter cell size, is not present in the dataset. Plotting at scales larger than 1:50,000 (30m cell size) will not yield greater real detail, although it may reveal fine-scale irregularities below the intended resolution of the database. Similarly, where this database is used in combination with other data of higher resolution, the resolution of the combined output will be limited by the lower resolution of these data. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: USGS Earth Surface Processes Team Contact_Person: Project Chief Scientist Contact_Address: Address_Type: mailing address Address: 345 Middlefield Road, MS 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: Image of entire map on white background Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: Browse_Graphic_File_Description: A PDF representation of the geologic map and base maps at a scale of 1:50,000 (Sheet 1). 13 megabytes. Browse_Graphic_File_Type: PDF Data_Set_Credit: Richard J. Pike (USGS) co-conceived the project and directed the overall effort, supplied ideas and topographic parameters to be experimented with by Sebastian Roberts, contributed to creating (with Scott Graham, USGS) the 30-m digital elevation model, devised the final model, prepared the tables, decided on figures to be made, chose colors for map, and prepared all versions of the pamphlet text and designed its final layout. Russell W. Graymer (USGS) co-conceived the project and delimited the study area, supplied ideas to be experimented with by S. Roberts, furnished the digital geologic map and list of 120 map units, devised the first model for within-landslide susceptibility, conceived the tests of the model- particularly normalization of the post-1970 landslide data, and contributed to the pamphlet. Sebastian Roberts (USGS and Environmental Careers Organization) digitized the original 1:24,000-scale landslide maps and map positions of the post-1970 landslides, compiled the digital data on geology, ground slope, landslide inventory, recent landsliding, and land use in the Arc/Info geographic information system, wrote the Arc Macro Language (AML) to make computations, computed the first set of susceptibility values, and created the earliest versions of the 1:50,000-scale color map. Naomi B. Kalman (USGS and Environmental Careers Organization) recompiled data, adjusted the susceptibility and plot AMLs, computed the revised set of susceptibility values, made preliminary versions of pamphlet figures, based off her database files, produced intermediate versions of the map, and served as a resource for later work on the project. Steven Sobieszczyk (USGS and Environmental Careers Organization) recompiled some of the data, rewrote the plot AML, computed the revised susceptibility values, created or modified color and monochrome illustrations for the map and pamphlet, prepared the final versions of the map, annotated and reformatted the map to conform to USGS publication standards, and made corrections to the map after technical reviews. He wrote the metadata for the digital file, and helped format the pamphlet to conform to USGS publication standards. Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: SunOS, 5.5.1, sun4u UNIX, ARC/INFO version 7.2.1 Cross_Reference: Citation_Information: Originator: Unknown Publication_Date: Publication_Time: Title: Edition: Geospatial_Data_Presentation_Form: Series_Information: Series_Name: Issue_Identification: Publication_Information: Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See Entity_Attribute_Information Quantitative_Attribute_Accuracy_Assessment: Attribute_Accuracy_Value: See Explanation Attribute_Accuracy_Explanation: Attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section. Logical_Consistency_Report: 30m grid, annotation, and base maps Completeness_Report: The report is intended to describe landslide susceptibility at a 1:50,000 scale. Information measured in 30 meter grid squares. Any attempt to use at higher resolution will significantly reduce the accuracy for prediction and evaluation purposes. Please consult contracted geologist for ground survey to evaluate site specific risk. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Well located data items are intended to have a horizontal positional accuracy within 1.2 mm at 1:50,000 scale, or within 30 meters on the ground. The position of each data item is derived from the USGS topographic base map, and therefore additional inaccuracies arising from inaccuracies in the base map may also be encountered. See Aitken (1997) for information regarding the horizontal positional accuracy of the basemaps. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: No vertical positional data recorded. See Aitken (1997) for information regarding the vertical positional accuracy of the basemaps used to create the plotfiles of the geologic maps. Lineage: See also Supplemental_Information: Source_Information: Source_Citation: Citation_Information: Originator: Nilsen, Tor Publication_Date: 1975 Title: Preliminary photo-interpretation maps of landslide and other surficial deposits of 56 7.5-minute quadrangles, Alameda, Contra Costa, and Santa Clara Counties, California Series_Information: Series_Name: U.S. Geological Survey Open File Report Issue_Identification: 75-277 Source_Scale_Denominator: 24,000 Type_Of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Nilsen, 1975 Source_Contribution: landslide inventory data Source_Citation: Citation_Information: Originator: Graymer, R.W. Publication_Date: 2000 Title: Geologic map and map database of the Oakland metropolitan area, Alameda, Contra Costa, and San Francisco Counties, California Series_Information: Series_Name: U.S. Geological Survey Miscellaneous Field Studies Map Issue_Identification: MF-2342 Source_Scale_Denominator: 50,000 Type_Of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2000 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Graymer, 2000 Source_Contribution: Geologic map of same region Source_Citation: Citation: Citation_Information: Originator: U.S. Geological Survey (USGS) Publication_Date:19790701 Title: DEM 7.5 Quadrangle: Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: The photo source date for this DEM was 01-JAN-66 and it was last revised 01-JAN-98 Cloud_Cover: none Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point_and_Vector_Object_Count: SDTS_Point_and_Vector_Object_Type: Point_and_Vector_Object_Count: SDTS_Point_and_Vector_Object_Type: Point_and_Vector_Object_Count: Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Transverse_Mercator: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 1.0 Ordinate_Resolution: 1.0 Planar_Distance_Units: METERS Geodetic_Model: Horizontal_Datum_Name: North American Datum 1927 (NAD27) Ellipsoid_Name: Clarke 1866 Semi-major_Axis: unknown Denominator_of_Flattening_Ratio: unknown Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: susgrd_utm.VAT Entity_Type_Definition: grid source data Number of Rows: 1394 Number of Columns: 1122 Data Type: Integer Entity_Type_Definition_Source: ARC/INFO Attribute: Attribute_Label: Record Attribute_Definition: record number for cell Attribute_Definition_Source: ARC/INFO Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive Real Numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Value Attribute_Definition: assigned susceptibility cell Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive Real Numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Attribute: Attribute_Label: Count Attribute_Definition: Number of cells with same assigned value Attribute_Definition_Source: Computed Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Positive real numbers Enumerated_Domain_Value_Definition: Enumerated_Domain_Value_Definition_Source: Overview_Description: Entity_and_Attribute_Overview: 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 table of the grid included in the report are set or calculated by Arc/Info. The only exception is "count." The boundary of the grid is xmin = 554596.775, xmax = 588256.775, ymin = 4164296.500, and ymax = 4206116.500. Statistics of the grid include a minimum value of 0, a maximum value of 133, which allows a mean of 13.24 and a standard deviation of 18.11. There are 110 values included and 8 bytes of attribute data. Entity_and_Attribute_Detail_Citation: This report, mf-2385.txt, mf- 2385_6b.pdf or mf-2385_6a.eps Distribution_Information: Metadata_Reference_Information: Metadata_Date: 20020213 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: R.J. Pike Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: Mailing Address: 345 Middlefield Rd., M/S 975 City: Menlo Park State_or_Province: CA Postal_Code: 94025 Country: USA Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: 19940608 Metadata_Time_Convention: Local Time Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None