RV Prince Madog PD27/05
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Prince Madog (74P2) |
| Cruise identifier | PD27/05 |
| Cruise period | 2005-07-22 — 2005-08-06 |
| Status | Completed |
| Port of departure | Menai Bridge, United Kingdom |
| Port of return | Menai Bridge, United Kingdom |
| Purpose | Research |
| Objectives | The 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 scientist | John 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) |
| Project | Physical-biological control of new production within the seasonal thermocline |
| Coordinating body | Natural Environment Research Council (NERC) |
| Cruise report |  (0.05 MB) |
| Ocean/sea areas | |
| General | Celtic Sea |
| Specific | Jones Bank |
| Track charts | (0.05 MB) |
| Measurements | |
| 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 measurements | Quantity: number of profiles = 584 Description: FLY II free-falling profiler for current shear/turbulence and CTD over water column |
| Meteorology | |
| Routine standard measurements | Quantity: activity duration in days = 10 Description: Standard meteorology sampled continuously under way on ship |
| Moorings, landers, buoys | |
| Physical oceanography | |
| Subsurface temperature measurements | 49° 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 |
