Results From the IMP-J Violet Solar Cell Experiment and Violet Cell Balloon Flights

摘要

The Langley Research Center, in collaboration with NOAA Atlantic Oceanographic and Meteorological Laboratories, Miami, Florida, has conducted an inves¬tigation to determine the feasibility of tracking Woodhead seabed drifters that have been instrumented with miniature acoustic transmitters having a range in water in excess of 1.0 n.mi. A trial cruise at the entrance of Delaware Bay, with the R.V. Annandale as the sonar-tracking vessel, verified acoustic communi¬cations and positioning of the bottom drifters. A demonstration cruise with the R.V. Annandale was also performed in the New York Bight to attempt to collect information on bottom water movement near the sewage-sludge dump site. Results from the tracking mission in the New York Bight suggested that bottom water currents were negligible near the dump site during the time interval from November 7-12, 1975, and that shipboard sonar trathing of acoustic Woodhead seabed drifters could provide useful Lagrangian information on bottom water movement caused by tidal and other nonstorm effects