|Erosion||erosion or nondeposition characterized by high backscatter in the sidescan-sonar image and clusters of boulders indicating coarser grained sediment reflective of higher energy environments|
|Sorting||sorting and reworking characterized by moderate backscatter in the sidescan-sonar imagery and the sea floor tends to be relatively smooth|
|Cgbt||coarse-grained bedload transport characterized by bathymetric highs and where there are sand waves|
|Deposition||fine-grained deposition characterized by low backscatter in the sidescan-sonar imagery and typically occurring in part of the channel and bathymetric lows|
This data layer is a component of the H11321 Survey, GIS database and represents an interpretation of the sidescan-sonar mosaic for the study area. The interpretation can be used as an overlay for the mosaic image and shows the sedimentary environments of the study area such as erosion or nondeposition, sorting and reworking and coarse-grained bedload transport.
Are there legal restrictions on access or use of the data?
Use_Constraints:Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of this dataset.
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.
|Data format:||The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBase format. The PRJ file contains the coordinate system information. The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set <data set name>.shp.xml. Three other forms of the metadata are also available: FGDC html, FAQ html, and ASCII text. In addtion a browse graphic showing the data layer coverage and extent is included. in format SHP (version ArcView 3.3) ESRI Shapefile Size: 0.050|
|Media you can order:||DVD-ROM (Density 4.75 Gbytes) (format UDF)|
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.