Cruise inventory

RV Prince Madog PD27/05

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Prince Madog (74P2)
Cruise identifierPD27/05
Cruise period2005-07-22 — 2005-08-06
Port of departureMenai Bridge, United Kingdom
Port of returnMenai Bridge, United Kingdom
ObjectivesThe original motivation for this work was to identify the processes driving mixing at the thermocline in summer stratified shelf seas and to help understand the physical and biological interaction within this environment. With the comprehensive microstructure data collected by the FLY team and the biological and chemical data collected by the Charles Darwin team, the data collected during this cruise should help us in furthering this research.
Despite a number of problems experienced with FLY at the start of the Prince Madog leg of the cruise, 4 full 25 hour datasets were successfully collected at the Jones Bank site, with no problems except a replaced shear probe in FLY #3 at the start of the Neaps station at bank 2 (with no break in the series) and bad weather slowing some of the positioning in the FLY transect across the bank. A significant and unique dataset has therefore been collected by the FLY team, containing microstructure measurements over the entire water column at a variety of positions over and around a shelf sea bank.
Chief scientistJohn H Simpson (University of Wales, Bangor School of Ocean Sciences), Matthew R Palmer (University of Wales, Bangor School of Ocean Sciences), Mattias Green (University of Wales, Bangor School of Ocean Sciences)
ProjectPhysical-biological control of new production within the seasonal thermocline
Coordinating bodyNatural Environment Research Council (NERC)
Cruise reportRV Prince Madog PD27/05 cruise report pd27_05.pdf — access key 'C' (0.05 MB) 
Ocean/sea areas 
GeneralCeltic Sea
SpecificJones Bank
Track chartsRV Prince Madog PD27/05 cruise track — pd27_05roscop4788trk.pdf (0.05 MB) 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 10
Description: Surface CT, chl-a and sediment measured continuously under way
Current profiler (eg ADCP)Quantity: activity duration in days = 10
Description: Ship borne ADCP sampled every minute
Other physical oceanographic measurementsQuantity: number of profiles = 584
Description: FLY II free-falling profiler for current shear/turbulence and CTD over water column
Routine standard measurementsQuantity: activity duration in days = 10
Description: Standard meteorology sampled continuously under way on ship
Moorings, landers, buoys 
Physical oceanography 
Subsurface temperature measurements49° 51' 4" N  7° 57' 7" W — 20 Tloggers, 3 Microcats
Current profiler (eg ADCP)49° 51' 13" N  7° 56' 52" W — 300kHz ADCP, not recovered