U.S. GEOLOGICAL SURVEY
MARINE AND COASTAL GEOLOGY PROGRAM
Northeast Section
Woods Hole, MA  02543


CRUISE REPORT

1.  Ship Name/Owner Operator:  	R/V CAPE HENLOPEN/Univ. of Delaware

2.  Cruise No.:	CAPE HENLOPEN 94-12 (CH 94-12)

3.  Project Number:	9470-30051

4.  Funding Agency:	ONR for ship time and USGS for sidescan work

5.  Area of Operation:	Inner shelf off Little Egg Inlet, NJ
		Bounds of survey area:  39d 26'N - 39d 31'N
                                        74d 12'W - 74d 17'W

6.  Cruise Dates:	24 - 30 May, 1994

7.  Chief Scientists:	M. Badiey, Univ. of Delaware

8.  Scientific Party:	Mohsen Badiey, Univ. Delaware
		4 graduate students, Univ. Delaware
		Steve Forsythe, NRL, Orlando
		Technician, NRL, Orlando
		Dave Twichell, USGS
		Ken Parolski, USGS

9.  Ship's Captain:	Matthew Hawkins

10. Purpose of Cruise:	The purpose of this cruise was to resurvey a 3 x 7 km
    area of the inner shelf that was initially surveyed in June, 1991 with
    the 100-kHz Klein sidescan sonar system to document changes that have
    occurred during the past three years.  The study area is the site of a
    long-term ecological and oceanographic study that researchers at Rutgers
    University are conducting, and this remapping of the seafloor geology
    directly contributes to their benthic habitat and sediment transport
    studies.  The group from the University of Delaware (under Dr. M. Badiey)
    is studying shallow water acoustic reverberation, and these sidescan
    results provide a more detailed view of the variability of the seafloor
    geology and how it changes with time than previously had been available
    to them.

11.  Navigation Techniques:	Differential GPS
                                Megapulse Loran-C - recorded on 3.5" diskettes

12.  Scientific Equipment:	Klein 100-kHz sidescan sonar with winch
                                SIS-7000 QMIPS
                                Odem digital fathometer
                                DEC workstation for sidescan processing.

13.  Days at Sea:	6

14.  Sidescan Surveys:  Location  	km2	line km     swath
		Little Egg Inlet	21	217        100 m per side