Cruise inventory

RRS James Clark Ross JR20000719 (JR50)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20000719 (JR50)
Cruise period2000-07-19 — 2000-07-26
StatusCompleted
Port of departureNewcastle, United Kingdom
Port of returnBodø, Norway
PurposeTrials
ObjectivesCruise JR50 comprised trials of new scientific equipment installed on RRS James Clark Ross
during the summer refit. These trials mainly consisted of Sea Acceptance Tests of the new
multibeam echo sounder and sub-bottom profiler, the purchase and installation of which was
funded by an award from the Joint Infrastructure Fund. The cruise also provided an opportunity to test pre-existing echo sounding systems following refitting of transducers, and to prove the newly-installed NOAA Scientific Computing System. The Sea Acceptance Tests were successful and demonstrated that the new EM120 multibeam echo sounder can provide higher resolution sea-floor imagery than any other multibeam system presently in operation on a civilian vessel. Following the cruise there were some minor issues to resolve before the new sonar systems could be accepted, but these were second order problems which mainly related to some of the ancillary equipment.
Chief scientistRobert D Larter (British Antarctic Survey)
Cruise reportRRS James Clark Ross JR20000719 (JR50) cruise report jr50.pdf — access key 'C' (2.18 MB) 
Ocean/sea areas 
GeneralNorth Sea
Norwegian Sea
SpecificNorweigan Sea (Newcastle to Bodø, Norway)
Measurements 
Physical oceanography 
BathythermographDescription: A number of XBTs were deployed throughout the cruise.
Biology and fisheries 
Gear researchDescription: A multibeam echo sounder trial took place on the southeastern flank of FSC. Noise and interferance tests were run.
Geology and geophysics 
Multi-beam echosoundingDescription: A multibeam echo sounder trial took place on the southeastern flank of FSC. Noise and interferance tests were run.
Multi-beam echosoundingDescription: On the passage to Faeroe-Shetland Channel data was logged.
Magnetic measurementsDescription: On the passage to Faeroe-Shetland Channel data was logged.