USGS Geoscience Data Catalog
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Bucknam, Robert C. , Coe, Jeffrey A. , and Mota, Manuel Antonio , 2001, Landslides in Tucurú quadrangle, Guatemala: U.S. Geological Survey Open-File Report 01-443, U.S. Geological Survey, Denver, CO.This is part of the following larger work.Online Links:
Bucknam, Robert C. , Coe, Jeffrey A. , Mota, Manuel Antonio , Godt, Jonathan W. , Tarr, Arthur C. , Bradley, Lee-Ann, Rafferty, Sharon, Hancock, Dean, Dart, Richard L. , and Johnson, Margo L. , 2001, Landslides Triggered by Hurricane Mitch in Guatemala - Inventory and Discussion: U.S. Geological Survey Open-File Report 01-443, U.S. Geological Survey, Denver, Colorado.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is Transverse Mercator.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.000064
Ordinates (y-coordinates) are specified to the nearest 0.000064
Planar coordinates are specified in meters
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
Value | Definition |
---|---|
1 | Landslide polygon |
0 | Unaffected region within landslide polygon |
Value | Definition |
---|---|
mirror | landslide features mapped with a mirror stereoscope |
plotter | the landslide features within the polygon were mapped with a photogrammetric stereoplotter |
notmap | polygon falls outside the defined study area |
This report is based on a cooperative study by the U.S. Geological Survey, Denver, Colorado and the Instituto Nacional de Sismologia, Vulcanologia, Meteorologia e Hidrologia, Guatemala City, Guatemala. Work funded by the U.S. Agency for International Development's Hurricane Mitch Reconstruction Program.
303-273-8606 (voice)
303-273-8600 (FAX)
jcoe@usgs.gov
The cover shows the distribution of slope failures formed during Hurricane Mitch in one of twenty 1:50,000-scale maps within a large study area adjacent to the Motagua and Polochic Rivers. The maps may also show recent landslides that formed prior before and after 1998. When combined, the maps provide a detailed inventory of landslides over a large geographic area (~10,000 km2) of diverse geology, geomorphology, microclimates, and vegetation.
Person who carried out this activity:
(303) 273-8626 (voice)
(303) 273-8600 (FAX)
jgodt@usgs.gov
The linework was digitized manually or by an optical scanner. Landslide locations mapped using the photogrammetric plotter are estimated accurate to within 50-100 m. Locations of landslides mapped using a mirror stereoscope are estimated to be accurate to within approximately 200 m.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- These maps are inventory maps, not hazard maps, and should not be enlarged to a scale larger than 1:50,000.
1-888-ASK-USGS (voice)
303-202-4693 (FAX)
ask@usgs.gov
USGS Open-File Report 01-443
This report is preliminary and has not been reviewed for conformity with U.S.Geological Survey editorial standards nor with the North American Stratigraphic Code.Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the U.S.Government.
Data format: | Landslides in format ArcInfo export (version 8.1) |
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Network links: |
<http://greenwood.cr.usgs.gov/pub/open-file-reports/ofr-01-0443/EXPORT/ls21611.e00> |
303-273-8626 (voice)
303-273-8600 (FAX)
jgodt@usgs.gov