The U.S. Geological Survey and the Monterey Bay Aquarium Research Institute (MBARI) acquired bathymetric and backscatter data with a multibeam (Simrad EM300) sidescan sonar system in the Monterey Bay region in 1998 (A4-98-MB, <http://walrus.wr.usgs.gov/infobank>). This data set consists of the bathymetric data that were collected from the continental shelf areas of the survey between Moss Landing and Point Sur, California. The data are provided as ArcInfo grids with 5-m resolution (MTCAN5G, MTSHLF5G, SGF5G, SUR5G) and as shaded relief images (MTCANSD.TIF, MTSHLFSD.TIF, SGFSD.TIF, SURSD.TIF).
This is one of a collection of digital files of a geographic information system of spatially referenced data related to the USGS Coastal and Marine Geology Program "Monterey Bay National Marine Sanctuary Project" <http://walrus.wr.usgs.gov/mbms>. The data were collected and analyzed between 1994 and 2000.
A298MB is a multibeam sonar survey of the the seafloor between Moss Landing and Point Sur, California. FGDC-compliant metadata and other information are available at the following URL:
<http://walrus.wr.usgs.gov/infobank/a/a498mb/html/a-4-98-mb.meta.html>
Maher, Norman, Eittreim, Stephen L. , Stevenson, Andrew J. , and Caress, David W. , 2001, Gridded bathymetric data (MTCAN5G, MTSHLF5G, SGF5G, SUR5G) and shaded relief images (MTCANSD.TIF, MTSHLFSD.TIF, SGFSD.TIF, SURSD.TIF) from EM300 multibeam surveys of the continental shelf from Moss Landing to Point Sur, California:.This is part of the following larger work.
Wong, F.L., and Eittreim, S.E., 2001, Continental Shelf GIS for the Monterey Bay National Marine Sanctuary: U.S. Geological Survey Open-File Report 01-179, U.S. Geological Survey, Menlo Park, CA.Online Links:
This is a Raster data set. It contains the following raster data types:
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 5.0
Ordinates (y-coordinates) are specified to the nearest 5.0
Planar coordinates are specified in Meters
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is GRS1980.
The semi-major axis of the ellipsoid used is 6378137.0.
The flattening of the ellipsoid used is 1/298.257.
The geographic extent (in degrees) of each grid is
GRID XMIN YMIN XMAX YMAX MTCAN5G -122.03381 36.73975 -121.78679 36.88621 rev 4/03 MTSHLF5G -122.03229 36.56534 -121.87569 36.75134 SGF5G -122.03259 36.36070 -121.91377 36.57095 SUR5G -122.08845 36.21525 -121.91450 36.37142The geographic extent (in UTM meters) and size (in numbers of columns and rows) of each grid are
GRID XMIN YMIN XMAX YMAX NCOLS NROWS MTCAN5G 586258 4066686 608113 4082686 4371 3200 rev 4/03 MTSHLF5G 586590 4047241 600365 4067726 2755 4097 SGF5G 586792 4024501 597192 4047716 2080 4643 SUR5G 581931 4008368 597376 4025533 3089 3433The depth values for each grid are
GRID ZMIN ZMAX MEAN STDV MTCAN5G -1263.0 -15.0 -303.4 280.1 rev 4/03 MTSHLF5G -1583.1 -21.2 -289.0 349.4 SGF5G -898.2 -28.1 -287.3 200.3 SUR5G -793.5 -37.7 -233.1 184.4The shaded relief images have the following attributes:
Image Format : TIFF Image Type : PSEUDOCOLOR Image Colormap : TRUE Image Compressed : FALSE Image Rotated : FALSE Image Depth = 8 Image Bands = 1 Pixel Size DX = 5.00000 Pixel Size DY = 5.00000The geographic extent (in decimal degrees) of the shaded relief images are
IMAGE XMIN YMIN XMAX YMAX MTCANSD.TIF -122.03176 36.74115 -121.78947 36.88549 MTSHLFSD.TIF -122.03229 36.56534 -121.87569 36.75134 SGFSD.TIF -122.03259 36.36070 -121.91377 36.57095 SURSD.TIF -122.08845 36.21525 -121.91450 36.37142The geographic extent (in UTM meters) and size (in numbers of columns and rows) of the shaded relief images are
IMAGE XMIN YMIN XMAX YMAX NCOLS NROWS MTCANSD.TIF 586440 4066839 607875 4082609 4287 3154 MTSHLFSD.TIF 586590 4047241 600365 4067726 2755 4097 SGFSD.TIF 586792 4024501 597192 4047716 2080 4643 SURSD.TIF 581931 4008368 597376 4025533 3089 3433
(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov
These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information about the shallower areas of the Monterey Bay National Marine Sanctuary.
Eittreim, S.L., A. Stevenson, L.Mayer, and J. Oakden, C. Malzone and R. Kvitek, 1997, Multibeam bathymetry and acoustic backscatter imagery of the southern Monterey Bay shelf: In Eittreim, S.L. (editor), Southern Monterey Bay Continental Shelf Investigations: Former Fort Ord Restricted Zone, Open File Report.
MBARI, 2000, MBARI Monterey Bay multibeam survey: MBARI Digital Data Series 3, Monterey Bay Aquarium Research Institute, Moss Landing, California.
Includes only shelf portion of data collected during A4-98-MB (<http://walrus.wr.usgs.gov/infobank/a/a498mb/html/a-4-98-mb.meta.html>). For complete dataset at 25-m resolution, see MBARI (2000).
Not applicable for raster data.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, 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 U.S. Geological Survey in the use of this data, software, or related materials.
This information is not intended for navigational purposes.
Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov
USGS Open-File Report 01-179
Please recognize the U.S. Geological Survey (USGS) as the source of this information.Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials.
(650) 329-5327 (voice)
(650) 329-5190 (FAX)
fwong@usgs.gov
