USGS Woods Hole, MA Field Activity Report for 80030

Alternate number:

Platform:

OCEANUS

Submersible:

Owner-Operator:

WHOI, Woods Hole, MA

Captain:

Paul C. Howland - WHOI, Master

Center Principal:

Brad Butman

Affiliate Principal
(if any):

Area of Operations:

Mid-Atlantic Continental Shelf, Wilmington Canyon, Georges Bank, Lydonia Canyon, New Jersey Shelf, United States, North America, North Atlantic

Bounding Coordinates

North:

41.0902777777778

South:

38.4902777777778

West:

-73.8044444444444

East:

-67.2002777777778

Start and End Dates:

October 23, 1980 to October 31, 1980

Start and End Ports:

from Woods Hole, MA to Woods Hole, MA

Days at Sea:

Project Number:

Project Title:

Lydonia Canyon Sediment Dynamics

Cruise Funding Source:

USGS/BLM

Contract:

14-08-0001-18920

Type of Activity:

Sampling
Mooring work

Objectives:

Recover 3 tripod moorings, 3 current moorings, 7 surface buoys on the shelf; deploy 3 tripods and 4 current moorings in and around Lydonia Canyon; conduct hydrographic measurements (XBT, CTD, suspended sediment sampling) along shelf transects and in Lydonia Canyon; obtain surface grabs at tripod stations at the head of Lydonia Canyon; and obtain seasonal benthic samples at Stations A, K and Q.

Information to be derived:

Time series data
Samples and Chemical Analysis
Mooring and buoy deployment/recovery

Data Types (and Media) Produced:

Scientific Party
(USGS):

Brad Butman, Chief Scientist; Michael Bothner, Scott Chalker, John Larson, Frank Musialowski, Marlene Noble, Carol Parmenter, Richard Rendigs, William Strahle

Scientific Party
(affiliate):

WHOI: Nancy Copley, William MacLeish, Rose Petrecca

Data Curator:

Scientific Equipment:

Northstar Loran-C w/ cassette recorder, Gifft E/S (12 kHz), XBT, Neil Brown CTD, Smith-MacIntyre grab sampler, Van Veen grab, AMF acoustic command system

Navigation techniques used:

Northstar Loran-C

Summary of Results:

All moorings were deployed as planned with the exception of the tripod at Station L. The instrument malfunctioned on deck and will be deployed on the November OCEANUS cruise. Because of the two days of bad weather and the return to Woods Hole for medical attention, there was no time for hydrography on Georges Bank. All moorings were recovered as planned except for a lost surface mooring at Station MAB and the tripod system at GBK. The surface buoys at GBK were left until the tripod is recovered. Moorings deployed: 8 (#203, 204, 209, 210, 212, 213, and 218 recovered FA 81009 OCEANUS 95 Apr. 3 - May 6, 1981; #206 recovered FA 81002 OCEANUS 91 Jan. 16-22, 1981). Moorings recovered: 5 (#193, 194, 196 partial, 197, and 198 deployed FA 80009 OCEANUS 81 May 23 - Jun. 1, 1980). Surface buoys deployed: 6 (K, M, Q, U, V, R); Surface buoys recovered: 3 (A, S, T); Lost: 1 VACM (from #198). CTD stations: 3; XBT stations: 16; Surface salinity: 15; Grab samples: 1.

Number of Stations Occupied:

Station Description:

Number of Submersible Dives:

Continuous Data (in Km):

Seismic Line Descriptions:

Track Plot:

Related Web Sites:

Remarks:

Tripod at L malfunctioned; will be deployed Nov. 1980 OCEANUS cruise. Tripod at GBK line parted; will be recovered on Nov. 1980 OCEANUS cruise.

Contact:

Brad Butman (bbutman@usgs.gov)

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