National Oceanic and Atmospheric Administration, and U.S. Geological Survey, 2010, NLNB_UTM: 4-m Grid of Combined Multibeam and LIDAR Bathymetry from National Oceanic and Atmospheric Administration (NOAA) Surveys H11441, H11442, H11224, and H11225 offshore of New London and Niantic, Connecticut (UTM Zone 18, NAD83): Open-File Report 2009-1231, U.S. Geological Survey, Coastal and Marine Geology Program, USGS Woods Hole Coastal and Marine Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
- <https://pubs.usgs.gov/of/2009/1231/data/bathy/grids/utmcombined/nlnb_utm.zip>
- <https://pubs.usgs.gov/of/2009/1231/html/catalog.html>
Poppe, L.J., Danforth, W.W., McMullen, K.Y., Parker, C.E., Lewit, P.G., and Doran, E.F., 2010, Integrated Multibeam and LIDAR Bathymetry Data Offshore of New London and Niantic, Connecticut: Open-File Report 2009-1231, U.S. Geological Survey, Coastal and Marine Geology Program, USGS Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
This is a Raster data set. It contains the following raster data types:
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 4.000726
Ordinates (y-coordinates) are specified to the nearest 4.000726
Planar coordinates are specified in meters
The horizontal datum used is North American Datum of 1983.
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.
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
To release a 4-m grid of the combined multibeam and LIDAR bathymetry generated during NOAA surveys H11441, H11442, H11224, and H11225 offshore of New London and Niantic, Connecticut in UTM Zone 18, NAD83.
National Ocean Survey, National Oceanic and Atmospheric Adminis, Unpublished Material, H11441 bathymetry.
National Ocean Survey, National Oceanic and Atmospheric Adminis, Unpublished Material, H11224 bathymetry.
National Ocean Survey, National Oceanic and Atmospheric Adminis, Unpublished Material, H11442 bathymetry.
National Ocean Survey, National Oceanic and Atmospheric Adminis, Unpublished Material, H11225 bathymetry.
Person who carried out this activity:
757-441-6746 (voice)
marc.s.moser@noaa.gov
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
508-548-8700 x2274 (voice)
508-457-2310 (FAX)
bdanforth@usgs.gov
Data sources produced in this process:
Christman, Emily B. , 2005, H11441: Descriptive Report H11441, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.Online Links:
Stephenson, Darren, 2004, H11224: Descriptive Report H11224, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.Online Links:
Poppe, L.J., Ackerman, S.D., Doran, E.F., Beaver, A.J., Crocker, J.M., and Schattgen, P.T., 2006, Interpolation of reconnaissance multibeam bathymetry from north-central Long Island Sound: Open-File Report 2005-1145, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Christman, Emily B. , 2005, H11442: Descriptive Report H11442, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.Online Links:
Stephenson, Darren, 2004, H11225: Descriptive Report H11225, National Ocean Survey, National Oceanic and Atmospheric Administration, Atlantic Hydrographic Branch, Norfolk, VA.Online Links:
Poppe, L.J., Lewis, R.S., Denny, J.F., Parolski, K.F., DiGiacomo-Cohen, M.L., and Tolderlund, D.S., 1998, Sidescan sonar image, surficial geologic interpretation, and bathymetry of the Long Island Sound sea floor in Niantic Bay, Connecticut: U.S. Geological Survey Geologic Investigations Map I-2625, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.
Horizontal position of the launches acquiring multibeam bathymetry were determined using GPS corrected by U.S. Coast Guard differential GPS beacon stations at Moriches, New York, and Sandy Hook, New Jersey. Real-time positioning during LIDAR acquisition was obtained by an Ashtech GG24 GPS receiver combined with Thales GeoSolutions Wide Area DGPS. Original horizontal resolution of the MBES data was 1 m; the final CARIS combined base surfaces for the MBES data were produced at a 4-m cell size for survey H11441 and a 3-m cell size for survey H11442; original cell size of the gridded LIDAR data was primarily 4 m.
Attitude of the launches (e.g. pitch, roll, and heave) acquiring multibeam bathymetry were monitored by an Applanix TSS POS/MV 320 Version 3 GPS aided navigation system. Real-time positioning during LIDAR acquisition was obtained by an Ashtech GG24 GPS receiver combined with Thales GeoSolutions Wide Area DGPS. Ashtech Z12 GPS receivers, provided as part of the Airborne System and Ground Systems, also logged GPS data on the aircraft and at a locally established base station to provide post processed KGPS position solutions. Received infrared laser energy, supplemented by an Altitude Heading Reference System (AHRS) inertial height reference and kinematic GPS, determined the height of the aircraft. The vertical resolution of the original bathymetry data is approximately 0.5% of the water depth.
All collected data were processed and used to produce this dataset.
No additional checks for consistency were performed on this data.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Data are not to be used for navigation purposes.
Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the National Oceanic and Atmospheric Administration (NOAA) and U.S. Geological Survey (USGS) as the originators of this information.
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
Downloadable Data
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor the National Oceanic and Atmospheric Administration (NOAA), nor the Connecticut Department of Environmental Protection (CT DEP) nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS, NOAA, or the CT DEP in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
| Data format: | One file (nlnb_geo.zip) containing the ArcGIS grid file components, browse graphic and metadata. in format ARCG ESRI ArcRaster Grid Size: 81.625 |
|---|---|
| Network links: |
<https://pubs.usgs.gov/of/2009/1231/data/bathy/grids/utmcombined/nlnb_utm.zip> <https://pubs.usgs.gov/of/2009/1231/html/catalog.html> |
| Media you can order: | CD-ROM (Density 640 Mbytes) (format ISO9660) |
The user must have a program capable of reading the ESRI grid data format. The user must have software capable of uncompressing archived zip files, such as WinZip or Pkware.
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
