In 1996 the Pacific Seafloor Mapping Project surveyed the shelf and slopeoffshore Los Angeles, CA (between the 20 to 800-m isobaths) from Pt. Dumeto the Paloes Verdes. In 1998 the project continued mapping to the southand surveyed the outer shelf, slope, and proximal basin off Long Beach andNewport. The two datasets were merged and regridded into a single database. These two surveys were conducted to support a USGS project studying marinepollution and geohazards along the Los Angeles Margin, southern California.. The data show, for the first time, the details of the continental marginof this region. The major elements include:
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