Trackline chart, bathymetric and seismic profiles acquired on R/V Lee Cruise 9-78-HW, near Hawaii

The U.S. Geological Survey research vessel S.P. Lee conducted a transit line from Honolulu, Hawaii to the big island of Hawaii during the cruise L9-78-HW.

The navigational track is shown in plate 1 and the three types of data collected (3.5 khz. and 12 khz. bathymetry plus single channel seismic reflection) are shown in plate 2.

The bathymetry records are 400 fathoms (one second sweep) collected by hull mounted transducers. The seismic reflection profiles are from a 148in³. Bolt Association Airgun* as energy source with reflectors transmitted via single channel streamer towed approximately 500 feet behind ship.

Copies of the data may be obtained from the National Geophysical and Solar-Terrestrial Data Center, U.S. Dept. of Commerce, Boulder, Colorado 80303.

*Use of commercial names does not imply endorsement by the U.S. Government.