OCNMS Raster Digital Terrain Models (DTMs)
Survey HMPR-117-2005-02
A zipped extent shapefile may be obtained here (if you have difficulty, try right click and ‘save target as…’)
Projection: NAD_1983_HARN_StatePlane_Washington_South_FIPS_4602, Units Foot_US
This survey consists of one tile. Data is directly downloadable at the following location:
|
bathymetry terrain model |
Physical Description
These data LiDAR mosaics are in ASCII Grid format. Horizontal resolution is 4 Meters, Vertical resolution is 0.01 Meter (1 Centimeter)
Projection: WGS_1984_UTM_Zone_10N, Units Meter
Vertical Datum: MLLW (transformed from NAVD88), Units Meter
These data were collected by the SHOALS-1000T (Scanning Hydrographic Operational Airborne Lidar Survey) system which consists of an airborne laser transmitter/receiver with a 1kHz. bathymetric laser and a 10 kHz topographic laser.
Horizontal_Positional_Accuracy: +/- 3 meters (95% confidence)
Vertical_Positional_Accuracy: +/- 25 cm (95% confidence)
Ancillary Data
Several survey-specific datasets pertaining to groundtruthing, the survey track, etc are provided on the OCNMS Data Catalog under 117-2005-02.
Related Data Products
These data appear to be a resampled version of the 2-meter LiDAR dataset OCNMS LiDAR Mosaic HMPR-117-2005-02.
Other Useful Information
Import of ASCII Grid (*.asc) using your particular GIS software’s import utilities will be required.
This page contains content copied from OCNMS’s Data Catalog. Please see metadata for this product for comprehensive information on OCNMS LiDAR data and data products
Also, see their Benthic Mapping webpage. Overviews of side scan sonar and multibeam sonar are available as well as a comprehensive overview of their benthic mapping program.
A comprehensive citable report pertaining to this specific survey is can be downloaded here in *.pdf format.
Questions? Commemts?
Contact Keven Bennett kbenet@u.washington.edu