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- 3634
RRS Charles Darwin CD62A
Cruise summary report
Cruise Info. | |||||
Ship name (ship code) | RRS Charles Darwin (74AB) | ||||
Cruise identifier | CD62A | ||||
Cruise period | 1991-09-06 — 1991-09-28 | ||||
Status | Completed | ||||
Port of departure | Troon, United Kingdom | ||||
Port of return | Barry, United Kingdom | ||||
Purpose | Trials | ||||
Objectives | ERS-1 calibration and validation in the region of the Iceland-Faroes Front.
The overall aim of the cruise was to calibrate and validate data from the sensors on board the European Space Agency ERS-1 satellite against in-situ measurements, to improve the utility of that data for oceanographic studies. Specific objectives included: 1. the validation of ERS-1 altimeter significant wave height measurements. 2. The calibration and validation of ERS-1 altimeter wind speed measurements. 3. the validation of ERS-1 altimeter sea surface topography measurements. 4. The calibration and validation of ERS-1 scatterometer wind speed and direction measurements. 5. The investigation of the relationship between wind stress at the sea surface and radar backscatter as measured by the scatterometer (including the effect of wave conditions on this relationship). 6. The calibration and validation of ERS-1 Along Track Scanning Radiometer (ATSR) sea surface temperature (SST) measurements. | ||||
Chief scientist | Meric Srokosz (James Rennell Centre for Ocean Circulation) | ||||
Cruise report | (2.13 MB) | ||||
Ocean/sea areas | |||||
General | North East Atlantic Ocean (limit 40W) | ||||
Specific | Iceland - Faroes Front, 62deg 18.6'N - 63deg 57.6'N, 3deg 32.4'W - 6deg 18.6'W | ||||
Track charts | |||||
Measurements | |||||
Physical oceanography | |||||
Surface measurements underway (T,S) | Quantity: track kilometres = 3200 Description: underway T&S using Seabird thermosalinograph | ||||
Bathythermograph | Quantity: number of profiles = 83 Description: XBT drops | ||||
Water bottle stations | Quantity: number of stations = 29 | ||||
CTD stations | Quantity: number of stations = 29 | ||||
Current meters | Quantity: number of deployments = 1 Description: deployed & recovered | ||||
Current profiler (eg ADCP) | Quantity: track kilometres = 3200 Description: shipborne ADCP | ||||
Current profiler (eg ADCP) | Quantity: number of deployments = 1 Description: 00455.2W VAESAT buoy, deployed 8 Sep 1991, recovered 22 Sep 1991 | ||||
Instrumented wave measurements | Quantity: number of deployments = 1 Description: 00455.8W Directional waverider buoy, deployed 8 Sep, lost 12 Sep | ||||
Other physical oceanographic measurements | Quantity: number of deployments = 1 Description: 00618.8W Met. Buoy (sea surface temperature) as above | ||||
Other physical oceanographic measurements | Quantity: number of deployments = 1 Description: 00456.4W Sonic anemometer buoy (sea surface temperature), as above, recovered 17 Sep | ||||
Meteorology | |||||
Routine standard measurements | Quantity: activity duration in days = 18 Description: 3 hourly met. obs. | ||||
Other meteorological measurements | Quantity: number of deployments = 1 Description: 00456.4W Sonic anemometer buoy (wind speed, direction, temperature) deployed 16 Sep | ||||
Other meteorological measurements | Quantity: number of deployments = 1 Description: 00618.8W Met. Buoy (wind speed,direction, temperature) deployed 9 Sep, recovered 20 Sep | ||||
Other meteorological measurements | Quantity: activity duration in days = 23 Description: underway met. | ||||
Moorings, landers, buoys | |||||
Physical oceanography | |||||
Current meters | 62° 18' 36" N 4° 55' 11" W — VAESAT buoy (as above) | ||||
Data held at BODC | Get data | ||||
Series/Profiles | |||||
27 CTD/STD cast | Temperature of the water column Vertical spatial coordinates Salinity of the water column Density of the water column Temperature of the water column Vertical spatial coordinates Salinity of the water column Density of the water column
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Discrete samples | |||||
27 CTD frame plus rosette sampler | Temperature of the water column Salinity of the water column Density of the water column | ||||
142 Expendable Bathythermograph | Temperature of the water column | ||||
24 Radiosonde | |||||
1312 Shipborne Acoustic Doppler Current Profile |