RV Cirolana CIR1/90
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Cirolana (74CZ) |
| Cruise identifier | CIR1/90 |
| Cruise period | 1990-01-05 — 1990-01-19 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To lay a line of current meter moorings.
2. To undertake repeated lines of CTD stations in the vicinity of the current meter moorings. 3. To deploy the tetrapod for zero offset deployments and for 12 and 24 hour anchor stations, depending on the weather conditions. Most deployments will be in and around the Marsden Bay area, but one may be on a sandy area of the Dogger Bank. 4. To undertake grab sample and side-scan sonar surveys of the area as necessary. 5. To recover and relay the current meter moorings at the end of the cruise. 6. To deploy the tetrapod with three guard buoys for a 48 day experiment to examine the effects of storms on the resuspension of sediments. |
| Chief scientist | Paul A Gurbutt (Ministry of Agriculture, Fisheries and Food Lowestoft Fisheries Laboratory) |
| Cruise report |  (0.19 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | NE Coast of England. |
| Track charts |  |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: activity duration in days = 14 Description: continuous surface salinity, 14 days data. |
| CTD stations | Quantity: number of stations = 71 Description: noisy calibration samples 3 with S only |
| Contamination | |
| Suspended matter | Quantity: number of stations = 71 Description: surface and bottom samples for suspended matter |
| Other contaminant measurements | Quantity: number of stations = 15 Description: sediment settling velocities |
| Geology and geophysics | |
| Grab | Quantity: number of stations = 33 Description: grab samples of bottom sediment |
| Core - soft bottom | Quantity: number of stations = 3 Description: Core samples |
| Long/short range side scan sonar | Quantity: activity duration in hours = 6 Description: side scan sonar survey in vicinity of NW Dogger Bank. |
| Moorings, landers, buoys | |
| Physical oceanography | |
| Current meters | 54° 58' 59" N 1° 21' 0" W — Deploy and recover 2 current meters (6 - 16 Jan 1990) |
| Current meters | 55° 1' 0" N 1° 4' 59" W — Deploy and recover 2 current meters (6 - 16 Jan 1990) |
| Current meters | 54° 58' 59" N 1° 18' 0" W — Deploy and recover 2 current meters (6 - 16 Jan 1990) |
| Current meters | 55° 0' 0" N 1° 13' 59" W — Deploy 3 current meters 6 Jan 1990. Not found on 16 Jan. Recovered by trawler |
| Current meters | 55° 1' 0" N 1° 4' 59" W — Deploy 2 current meters on 16 Jan 1990 |
| Current meters | 54° 58' 59" N 1° 21' 0" W — Deploy 2 current meters on 16 Jan 1990 |
| Current meters | 54° 58' 59" N 1° 18' 0" W — Deploy 2 current meters on 16 Jan 1990 |
| Current meters | 55° 0' 0" N 1° 13' 59" W — Deploy 2 current meters on 16 Jan 1990 |
| Other physical oceanographic measurements | 54° 58' 59" N 1° 21' 0" W — Near bed velocity profiles 16-18 Jan 1990 |
| Other physical oceanographic measurements | 54° 58' 59" N 1° 21' 0" W — Long term near bed velocity profiles from 18 Jan 1990 |
| Other physical oceanographic measurements | 55° 22' 0" N 1° 33' 0" W — Near bed velocity profiles 13-15 Jan 1990 |
| Other physical oceanographic measurements | 54° 58' 59" N 1° 21' 0" W — Near bed velocity profiles 7-9 Jan 1990 and 10-12 Jan 1990 |
