. Annual data summary for 1994, CERC Field Research Facility. Ocean waves; Water waves; Oceanographic research stations; Oceanography. Approximately once a month, surveys were conducted of an area extending 600 m north and south of the pier and approximately 950 m offshore. These surveys were conducted to document the temporal and spatial variability in bathymetry. Contour maps resulting from these surveys, along with plots of change in elevation between surveys, are given in Appendix A. All surveys used the Coastal Research Amphibious Buggy (CRAB), a amphibious tripod described by
. Annual data summary for 1994, CERC Field Research Facility. Ocean waves; Water waves; Oceanographic research stations; Oceanography. Approximately once a month, surveys were conducted of an area extending 600 m north and south of the pier and approximately 950 m offshore. These surveys were conducted to document the temporal and spatial variability in bathymetry. Contour maps resulting from these surveys, along with plots of change in elevation between surveys, are given in Appendix A. All surveys used the Coastal Research Amphibious Buggy (CRAB), a amphibious tripod described by Birkemeier and Mason (1984), in combination with a Geodimeter 140-T self-tracking, electronic theodolite, distance meter. Profile locations are shown in each figure in Appendix A. Monthly soundings along both sides of the FRF pier were collected by lower- ing a weighted measuring tape to the bottom and recording the distance below the pier deck. Soundings were taken midway between the pier pilings to minimize errors caused by scour near the pilings. A history of bottom elevations below Gauges 645 and 625 is presented in Figure 23 for pier stations 7 + 80 (238 m) and 18+60 (567 m), along with intermediate locations, 323 and 433 Distance (m) 238 323 433 567 IAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC Month Figure 23. Time-history of bottom elevations at selected locations under the FRF pier Chapter 7 Surveys 47. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Army. Corps of Engineers; U. S. Army Engineer Waterways Experiment Station; Coastal Engineering Research Center (U. S. ). [Vicksburg, Miss. : U. S. Army Engineer Waterways Experiment Station]
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