Online Links:
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 133 |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 109 |
| Range of values | |
|---|---|
| Minimum: | 0 |
| Maximum: | 133 |
| Units: | susceptibility |
| Resolution: | 1 |
| Range of values | |
|---|---|
| Minimum: | 12 |
| Maximum: | 345386 |
| Units: | number of grid cells |
| Resolution: | 1 |
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.
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.
File name coverage contents 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
Are there legal restrictions on access or use of the data?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.
Information in this data set is approved for release to the public by the Director, U.S. Geological Survey. This information has been reviewed but may still contain errors or inconsistencies, of which we would like to be made aware. Generally USGS data is not intended for use in navigation. Trade names are given for reference and do not constitute institutional endorsement.
| Data format: | Susceptibility grid (30 meter cell size) in format ArcInfo Grid (version 7.2.1) Size: 0.8203 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_3.e00.gz |
| Data format: | Base map data: drainage, cultural features, streets, interstate hightways, streams, lakes, bays, and rivers in format Shapefile (version 1.0) Size: 1 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5.tar.gz |
| Data format: | Drainage base map for Oakland area in format ARCE (version 7.2.1) Size: 1.1 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5a.e00.gz |
| Data format: | Cultural base map, including names in format ARCE (version 7.2.1) Size: 0.3125 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5b.e00.gz |
| Data format: | Street pattern and road network in format ARCE (version 7.2.1) Size: 0.0859 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5c.e00.gz |
| Data format: | Interstate highways in format ARCE (version 7.2.1) Size: 0.5430 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5d.e00.gz |
| Data format: | Streams, lakes, bays, rivers in format ARCE (version 7.2.1) Size: 2.1 |
|---|---|
| Network links: |
http://pubs.usgs.gov/mf/2002/2385/mf-2385_5e.e00.gz |
