RRS Challenger CH10/77

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH10/77
Cruise period1977-06-29 — 1977-07-10
Port of departureDunstaffnage, United Kingdom
Port of returnDunstaffnage, United Kingdom
ObjectivesCruise objectives were.
(1) Turn aound the current meter mooring at 57N, 9W. The mooring was recovered but not redeployed.
(2) Work the Anton Dohrn Seamount (Ellett Line) STD section. Weather prevented work on all but the easternmost shelf stations.
(3) Deploy an IOS, Bidston tide gauge NE of Rockall Bank. Accomplished.
(4) Work STD sections across the shelf edge between St Kilda and Barra Head. Accomplished.
(5) Work a grid of STD and radiocaesium surface water sampling stations between Mull of Kintyre and North Minch. Accomplished.
Chief scientistDavid J Ellett (Scottish Marine Biological Association)
Cruise reportRRS Challenger CH10/77 cruise report ch10_77.pdf (0.25 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
Track chartsRRS Challenger CH10/77 cruise track — trk2123.html RRS Challenger CH10/77 cruise track — trk2123a.html
Physical oceanography 
Water bottle stationsQuantity: number of stations = 116
Description: S surface only
CTD stationsQuantity: number of stations = 82
Description: noisy salinity
Current metersQuantity: number of stations = 1
Description: 2x79 days
Sea level (inc. bot. press., inverted echosounder)Description: tide gauge N.E.Rockall
Chemical oceanography 
IsotopesQuantity: number of samples = 65