RV Sea Vigil SV1A
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RV Sea Vigil (74S9) |
| Cruise identifier | SV1A |
| Cruise period | 1993-06-30 — 1993-06-30 |
| Status | Completed |
| Port of departure | Hull, United Kingdom |
| Port of return | Hull, United Kingdom |
| Purpose | Research |
| Objectives | 1. To develop sampling and ground-truthing protocols for use on subsequent surveys in support of CASI airborne remote sensing of estuarine and coastal waters within LOIS.
2. To obtain measurements of the optical characteristics of estuarine waters that would be relevant to the interpretation of remotely sensed (aircraft) images. 3. To measure and characterise water quality parameters which influence the absorption and reflection of light. |
| Chief scientist | Tony Bale (Plymouth Marine Laboratory) |
| Project | LOIS (RACS) |
| Cruise report |  (2.18 MB) |
| Ocean/sea areas | |
| General | North Sea |
| Specific | Humber Estuary and feeder rivers |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Description: Water samples taken at half hourly intervals from 1m below surface to determine salinity levels. |
| Surface measurements underway (T,S) | Quantity: number of deployments = 4 Description: Undulating oceanographic recorder deployed at a fixed depth of 3-4m. |
| CTD stations | Description: Vertical profiles taken to measure light spectra, light penetration, salinity and temperature. |
| Optics (eg underwater light levels) | Description: Vertical profiles taken to measure light spectra, light penetration, salinity and temperature. |
| Contamination | |
| Suspended matter | Description: Water samples taken at half hourly intervals from 1m below surface to determine particle size distribution. |
| Suspended matter | Description: Axial survey from Hull seaward following the main navigation channel with water samples taken at half hourly intervals from 1m below surface. |
| Suspended matter | Description: Vertical profiles taken to measure light spectra, light penetration, salinity and temperature. |
| Suspended matter | Quantity: number of deployments = 4 Description: Undulating oceanographic recorder deployed at a fixed depth of 3-4m. |
| Biology and fisheries | |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: number of deployments = 4 Description: Undulating oceanographic recorder deployed at a fixed depth of 3-4m. |
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Description: Axial survey from Hull seaward following the main navigation channel with water samples taken at half hourly intervals from 1m below surface. |
| Dissolved organic matter (inc DOC) | Description: Axial survey from Hull seaward following the main navigation channel with water samples taken at half hourly intervals from 1m below surface. |
| Phytoplankton | Description: Axial survey from Hull seaward following the main navigation channel with water samples taken at half hourly intervals from 1m below surface. |
| Data held at BODC | |
| Discrete samples | |
| 17 Sample taken from ship's non-toxic supply | Temperature of the water column Salinity of the water column Concentration of suspended particulate material in the water column Dissolved organic carbon concentration in the water column Chlorophyll pigment concentrations in water bodies |
| 4 Undulating Oceanographic Recorder Tow |
