RV Corystes COR4/98
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Corystes (74RY) |
| Cruise identifier | COR4/98 |
| Cruise period | 1998-04-01 — 1998-04-06 |
| Status | Completed |
| Port of departure | Lowestoft, United Kingdom |
| Port of return | Lowestoft, United Kingdom |
| Purpose | Research |
| Objectives | 1. To recover two Minipods at Threshold and the New dredge disposal site at Harwich and obtain sediment samples at those sites.
2. To deploy two U shaped moorings and two single point moorings in the Thames estuary as part of the Smart Biophysical Moorings campaign (A1108). 3. To trial two SWATH bathymetry systems on the Cross sands area (ELAC and Submetrix). 4. To trial two digital sidescan systems for identification of biotopes. |
| Chief scientist | Jonathon Mark Rees (Centre for Environment, Fisheries and Aquaculture Science Lowestoft Laboratory) |
| Cruise report |  (0.33 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Harwich, Thames and Cross Sands |
| Measurements | |
| Physical oceanography | |
| Bathythermograph | Quantity: number of surveys = 5 Description: A bathymetric survey with the ELAC system was completed over 5 lines. |
| Bathythermograph | Quantity: number of surveys = 5 Description: A bathymetric system completed along 5 lines using the Submetrix system. |
| Current meters | Quantity: number of deployments = 3 Description: 2 current meters were deployed at the Thames site along with the SMART water sampling mooring. |
| Current meters | Quantity: number of deployments = 4 Description: 3 Minipods were deployed offshore of Cross Sands, along with another current meter. |
| Current meters | Quantity: number of recoveries = 5 Description: 2 Minipods and 3 guard bouys were recovered from Harwich. |
| Biology and fisheries | |
| Gear research | Quantity: number of surveys = 3 Description: the EdgeTech sidescan sonar was tested on 3 survey lines. |
| Geology and geophysics | |
| Grab | Quantity: number of measurements = 8 Description: 2 sidescans, using the Klein system, and 6 Hamon Grabs took place. |
| Grab | Quantity: number of samples = 14 Description: 14 mini Hamon Grab samples were collected to help with the calibration of the sidescan and swath bethymetry. |
| Long/short range side scan sonar | Quantity: number of surveys = 1 Description: A short sidescan survey was completed using the Klein 2000. |
| Long/short range side scan sonar | Quantity: number of measurements = 8 Description: 2 sidescans, using the Klein system, and 6 Hamon Grabs took place. |
