Non-navigational Gridded Bathymetry Data Washington-Oregon Coast: 1926-1998, USGS OFR 00-448

Sixteen digital bathymetric surface models (grids) of the seafloor off the
coast of Washington and Oregon were created for wave modeling experiments along
the coast of Washington. Surfaces were created for two areas over two time
periods. The largest area (covering approximately 46 million km 2) extends
along the coast of Oregon and Washington, between Heceta Head OR and Cape
Johnson WA, from the shoreline to about 2000-m water depth (hereafter referred
to as the ORWA region). The second area (covering approximately 7 million km 2)
extends from Tillamook Head OR to Pt. Grenville WA, from the shore to
approximately 700-m water depth. This area corresponds to the study area
boundaries of the Southwest Washington Coastal Erosion Study (Kaminsky et al.,
1997, Gelfenbaum and Kaminsky, 1998; 1999) and is hereafter referred to as the
SWWA region. Surfaces defined by the ORWA and SWWA regions were created for two
time periods; historical (circa 1926), and modern (a combination of c.1926 and
1998 as discussed below). Data are presented in both UTM and Washington State
Plane South coordinate systems, at 500-m and 750-m grid cell spacing, in
ARC/INFO 7.1 (ESRI), SURFER 6.0 (Golden Software), and ASCII formats. The
vertical datum is mean lower low water (MLLW).

The data included in this report are intended for scientific research and
should not be used for navigational purposes. The use of trade names or
products does not imply endorsement by the U.S. Geological Survey.

This work was conducted in conjunction with the Southwest Washington Coastal
Erosion Study (SWCES), a cooperative project directed by the U.S. Geological
Survey, Coastal and Marine Geology Program and the Washington State Department
of Ecology. A description of the study and initial results can be found in
Kaminsky et al. (1997) and Gelfenbaum and Kaminsky (1998 and 1999), and online
at: "http://www.ecy.wa.gov/programs/sea/swces/index.htm".