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Summary for Field Activity Number 81009

Alternate Leg ID: OC95

Area of Operations: Georges Bank, Lydonia Canyon, United States, North America, North Atlantic

Dates: April 23, 1981 to May 6, 1981

Chief scientist: Brad Butman
   

Objectives: Recover 16 moorings, 3 tripods, and 5 buoys; deploy 4 moorings and 2 tripods; recover buoys GKQ unrecovered Oct. and Nov. 1980, OCNS 88, 90 cruises. Collect XBT, CTD and bathymetry data in and around Lydonia Canyon. Obtain surface grab samples at Stations A, K, Q, and LCA.

Type of Activity:

Information to be derived: Time series data
Samples and Chemical Analysis
Grain size analysis

Summary: All current moorings, tripods and surface buoys were recovered as planned, except the surface mooring at LCL and the subsurface mooring of LCE. Three (of 3) shallow tripods, 3 (of 4) deep tripods, 18 (of 21) sediment traps and 32 (of 34) VACMs were recovered. Preliminary indications are that the data return from the instruments and sediment traps was good. A minimum of nutrient and suspended sediment profiling was conducted due to time spent dragging for the two tripods and the mooring at LCE. A mooring with current meter and two sediment traps was deployed at LCE to obtain information where the mooring was not recovered. Moorings deployed: 6 (#223, 224, 225, 226, 227, and 228 all recovered FA 81034 OCEANUS 104 Sep. 25 - Oct. 2, 1981). Moorings recovered: 18 (#203, 204, 210, 212, and 213, deployed FA 80030 OCEANUS 88 Oct. 23-31,1980; #205, 207, 208, 209, 211 (partial), 214, 215, 216, 217, 218, 219, and 220 deployed FA 80034 OCEANUS 90 Nov. 24 - Dec. 3, 1980; and #221 and 222 deployed FA 81002 OCEANUS 91 Jan. 16-22, 1981). Surface buoys recovered: 6; CTD stations: 27; XBT stations: 41; Grab samples: 72; Bathymetric surveys: 4 (Sites C, D, F, and G).

USGS Project Number:

Contact: Brad Butman (bbutman@usgs.gov)

InfoBank: uses the identifier O-95-81-GK. Visit this site for more information.

Click to get Google Software - Download 81009.kml to view this field activity in Google Earth

Map for Area of Operations :

Map of field activity boundary.

Platform Info:

The following materials for this field activity are available in the Information Archives:

Comprehensive listing of data items by form:

Inventory #Data TypeFormFormatAmountSourceNatureRemarks
100843BINDERGRAPH1CTDPLOT
100844LOGBOOKTABLE1TECHMONITOR
100845BINDERGRAPH1XBTSTRIPCHART
100846NOTEBOOKMIXED1XBTMONITOR
100848BINDER-OPTABLE1COMPMONITOR13 PIECES
101354ENVELOPEPRNTOUT1LORAN CMONITOR
C 2343-C 2347CASSETTENSTAR5NSTARDIGITAL
FD1594FOLDERPROFILE1E/SANALOG
T 2437-T 2448MAGTAPECTD12CTDDATA
TK0478-TK0480TRKCHTMAP3TECHORIG

Paper/mylar track lines:

Inventory #ProjectionScaleFormSourceMap IDNumber of MapsRemarks
478MER ?PAPERORIG1BATHY
479MER ?PAPERORIG2BATHY
480MER ?PAPERORIG3BATHY

Paper seismic/sidescan bottom profiles:

Inventory #LinesFolderStart TimeEnd TimeProfile TypeRemarks
01594SITES C&D,F&G* 001: 04/25/1981: 04/29/1981 E/S- *&B

Films (35 and 16mm) containing original data films and archived data microfilm. Original films are stored in the WHOI Data Library/Archive film vault. Cabinet storage is in the USGS-WHSC Data Library/Archive.

Inventory #Other #SourceData TypeContentsLocationRemarks
105183223USGS-WHFCBOTTOMPHOTOTRIPOD 223; 19810505-19810926WHOI-DLORIGINAL B+W
105184224USGS-WHFCBOTTOMPHOTOTRIPOD 224; 19810426-19810926WHOI-DLORIGINAL B+W
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