USGS, 2007, Contour Data and Survey Control for the January 2007 Northridge Bluff Landslide: Open-File Report 2007-1079, U.S. Geological Survey, Coastal and Marine Geology Program, Menlo Park, CA.This is part of the following larger work.Online Links:
Collins, Brian D. , Kayen, Robert, Reiss, Thomas, and Sitar, Nicholas, 2007, Terrestrial LIDAR Investigation of the December 2003 and January 2007 Activations of the Northridge Bluff Landslide, Daly City, California: Open-File Report 2007-1079, U.S. Geological Survey, Coastal and Marine Geology Program, Menlo Park, CA.Online Links:
This is a Point data set. It contains the following vector data types (SDTS terminology):
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.2
Ordinates (y-coordinates) are specified to the nearest 0.2
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983 (NAD83).
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Character string identifying the station site
Range of values | |
---|---|
Minimum: | 4170565.103 |
Maximum: | 4170753.436 |
Units: | meters |
Resolution: | 0.03 |
Range of values | |
---|---|
Minimum: | 544417.118 |
Maximum: | 544601.503 |
Units: | meters |
Resolution: | 0.03 |
Range of values | |
---|---|
Minimum: | 4.225 |
Maximum: | 116.186 |
Units: | meters |
Resolution: | 0.03 |
Range of values | |
---|---|
Minimum: | 1.562 |
Maximum: | 1.830 |
Units: | meters |
Resolution: | 0.03 |
Range of values | |
---|---|
Minimum: | 5.835 |
Maximum: | 118.016 |
Units: | meters |
Resolution: | 0.03 |
Range of values | |
---|---|
Minimum: | 544386.732 |
Maximum: | 544616.018 |
Units: | meters |
Resolution: | 0.20 |
Range of values | |
---|---|
Minimum: | 4170486.919 |
Maximum: | 4170738.475 |
Units: | meters |
Resolution: | 0.20 |
Range of values | |
---|---|
Minimum: | 0.000 |
Maximum: | 139.000 |
Units: | meters |
Resolution: | 0.20 |
(650) 329-5466 (voice)
bcollins@usgs.gov
This data set was developed to present topographic contour data and survey coordinates for engineers, public officials, policy makers, and the general public.
Person who carried out this activity:
(650) 329-5466 (voice)
bcollins@usgs.gov
Lidar-derived points and their associated surfaces and contours are accurate to 15 centimeters.
Lidar-derived points are accurate to 15 centimeters, measured as three-dimensional error. This includes 1.5 cm laser error, 3 cm survey control error, and 10 cm post-processing registration error.
Lidar-derived points are accurate to 15 centimeters, measured as three-dimensional error. This includes 1.5 cm laser error, 3 cm survey control error, and 10 cm post-processing registration error.
Ommissions and gaps in data reflect data out of view or range of the laser scanner at time of data acquisition.
Surface and contour data has been visually examined and compared to other data sets of the area to assure logical consistency.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Public domain data from the U.S. government are freely redistributable with proper metadata and source atttribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user.
This information is not intended for navigational purposes.
(650) 329-5466 (voice)
bcollins@usgs.gov
Although this dataset has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Reference made to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
(650) 329-5466 (voice)
bcollins@usgs.gov