Butman, Bradford, Valentine, Page C. , and Danforth, William W. , 2007, MB_BATHYCLR10M.TIF - 10-m resolution image of shaded relief multibeam bathymetry in Massachusetts Bay, colored by water depth: Data Series 99, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
- <http://pubs.usgs.gov/ds/99/massbay_gis/2_multibeam/imagery/mb_bathyclr10m.zip>
- <http://pubs.usgs.gov/ds/99/webpages/massbay.html>
Butman, Bradford, Valentine, Page C., Middleton, Tammie J., and Danforth, William W., 2007, A GIS Library of Multibeam Data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, Offshore of Boston, Massachusetts: Data Series 99, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
This is a Raster data set. It contains the following raster data types:
The map projection used is Mercator.
Planar coordinates are encoded using row and column
Abscissae (x-coordinates) are specified to the nearest 10.000000
Ordinates (y-coordinates) are specified to the nearest 10.000000
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.
Sequential unique whole numbers that are automatically generated.
(508) 548-8700 x2212 (voice)
(508) 457-2309 (FAX)
bbutman@usgs.gov
This GeoTIFF image shows shaded-relief multibeam bathymetry, colored by water depth, in Massachusetts Bay at 10-m resolution.
U.S. Geological Survey, Unpublished Material, Multibeam bathymetric survey data collected by USGS in Massachusetts Bay, 1994-1998.
Person who carried out this activity:
508-548-8700 (voice)
(508) 457-2310 (FAX)
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:
No attributes are associated with these data.
These data were navigated with a Differential Global Positioning System (DGPS); they are accurate to +/- 3 meters, horizontally.
These data have been corrected for vessel motion (roll, pitch, heave, yaw) and tidal offsets, and referenced to mean lower low water. The theoretical vertical resolution of the Simrad EM-1000 multibeam echosounder is 1 % of water depth; roughly 30 - 50 cm within the study area. However, we found that the working vertical resolution of the system is roughly +/- 50 cm for water depths of 30 - 50 meters based on comparisons of grids from multi-year surveys of the same area.
The multibeam bathymetric data, on which this image is based, were corrected for tidal elevation during the survey using sea level measured at the NOAA Boston tide gage. This assumes that the tidal elevation and phase are the same as Boston across the survey area. Further processing to correct for the spatial and temporal changes in tidal elevation across the survey area may be undertaken at a later time.
These data are logically consistent.
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 attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
(508) 548-8700 x2212 (voice)
(508) 457-2309 (FAX)
bbutman@usgs.gov
Downloadable Data
Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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.
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: | A zip archive containing the GeoTIFF image, associated world file, and metadata. in format TIFF GeoTIFF Size: 0.000 |
|---|---|
| Network links: |
<http://pubs.usgs.gov/ds/99/massbay_gis/2_multibeam/imagery/mb_bathyclr10m.zip> |
| Media you can order: |
DVD-ROM
(Density 4.75
Gbytes)
(format UDF)
|
This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
(303) 202-4700 (voice)
(303) 202-4188 (FAX)
Downloadable Data
Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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.
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: | A zip archive containing the GeoTIFF image, associated world file, and metadata. in format TIFF GeoTIFF Size: 0.000 |
|---|---|
| Media you can order: |
DVD-ROM
(Density 4.75
Gbytes)
(format UDF)
|
This image is available as a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image.
(508) 548-8700 x2212 (voice)
(508) 457-2310 (FAX)
bbutman@usgs.gov