BODC Cruise Metadata Report for RRS Discovery (74E3) cruise D320
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS Discovery (74E3) cruise D320 |
|---|---|
| Short name | D320 |
| Objectives and Narrative |
The overall aim of the UKSOLAS project DOGEE-SOLAS is the parameterization of air-sea gas exchange, which is a currently a major uncertainty in global modelling. RRS Discovery cruise D320 thus was primarily concerned with the measurement of air-sea gas transfer velocities and some of the important physical parameters that influence them through contributing to near surface turbulence, and other processes. In brief, specific cruise objectives were:
1. Determine open ocean gas transfer velocities through a number of dual-tracer releases (3He & SF6). 2. Investigate the role of surfactant in gas exchange through a targeted surfactant release in conjunction with (1). 3. Determine CO2 fluxes and transfer velocities, and make associated hydrographic and turbulence related measurements from autonomous ASIS (Air-Sea Interaction Spar) buoys. 4. Measure air-sea fluxes of CO2, sensible heat, latent heat and momentum using the AUTOFLUX automated sensor array 5. Measure underway, total gas tension, dissolved O2, and CO2 to obtain independent air-sea gas exchange estimates. 6. Make covariance and gas budgeting estimates of air-sea gas exchange using intelligent profiling Lagrangian floats. 7. Independently determine DMS fluxes and gas transfer velocities for comparison with CO2 to examine the role of gas solubility in gas transfer. 8. Deploy a spar buoy (NOC) for measurement of wave heights and bubble properties 9. Record and measure whitecap coverage and wave breaking coincident with the air-sea flux measurements using ship mounted cameras 10. Record key meteorological variables 11. Quantify flow distortion biases in the direct flux measurements via the use of established models. 12. Make biogas, surfactant and bacterial measurements in the surface microlayer and in the uppermost metres of the ocean using surface microlayer samplers, a remotely operated catamaran, and a near surface sampler. 13. Deploy an autonomous powered profiler (ASIP) for turbulence-related measurements in the mixed layer. Objectives 1-12 were all met. Unfortunately, due to mechanical failure and loss of ASIP, objective 13 was not realised. |
| Ship | RRS Discovery |
| Departure Port | Falmouth, United Kingdom |
| Departure Date | 2007-06-16 |
| Arrival Port | Govan, United Kingdom |
| Arrival Date | 2007-07-18 |
| Principal Scientist(s) | Robert Upstill-Goddard (Newcastle University School of Marine Science and Technology) |
| Responsible Organisation | University of Newcastle School of Biology |
| Associated Project(s) | UK SOLAS |
| IHB Sea Areas Visited | North East Atlantic Ocean (limit 40W) |
| Marsden Squares Visited | 146/182 |
| Work Area Description | Atlantic west of Iberian Peninsula and Ireland |
| Unable to lookup cruise bounds at this time | |
| Work Area Bounding Polygon | |
| Southern Limit | unknown |
| Northern Limit | unknown |
| Western Limit | unknown |
| Eastern Limit | unknown |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| CTD stations |
Quantity:
number of stations =
25
Description: Vertical CTD casts (mixed layer, 150-300m): 3He tracer: collected for post-cruise analysis (on-shore mass spectrometry) due to failure of cruise objectives |
| Geochemical tracers (eg freons) |
Quantity:
number of stations =
44
Description: Vertical CTD casts (mixed layer, 150-300m): SF6 tracer by electron capture detection gas chromatography. |
| Chemical oceanography | |
| Carbon dioxide |
Quantity:
activity duration in days =
33
Description: Ship-mounted continuous underway surface pCO2 by gas equilibration/LICOR detection: CASIX system. |
| Carbon dioxide |
Quantity:
activity duration in days =
30
Description: Underway (5m) dissolved O2, dissolved CO2, total gas tension, temperature and salinity. |
| Other chemical oceanographic measurements |
Quantity:
activity duration in days =
30
Description: Continuous meteorological data and CO2 fluxes by AUTOFLUX system |
| Other chemical oceanographic measurements |
Quantity:
activity duration in days =
30
Description: Surfactant activity: surface sampling |
| Other dissolved gases |
Quantity:
activity duration in days =
30
Description: Underway (5m) dissolved O2, dissolved CO2, total gas tension, temperature and salinity. |
| Other dissolved gases |
Quantity:
activity duration in days =
30
Description: Mass spectrometric measurements of DMS sea-to-air fluxes by eddy covariance |
| Other dissolved gases |
Quantity:
activity duration in days =
33
Description: Underway measurements of DMS surface water concentrations |
| Oxygen |
Quantity:
activity duration in days =
30
Description: Underway (5m) dissolved O2, dissolved CO2, total gas tension, temperature and salinity. |
| Total - P |
Quantity:
activity duration in days =
22
Description: Underway continuous (every 4 min.) measurements of surface (6m) SF6 tracer by electron capture detection gas chromatography |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 43° 47' N | 18° 16' W | Carbon dioxide | ASIS (I) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 22' N | 17° 59' W | Carbon dioxide | ASIS (II) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 47' N | 18° 16' W | Current meters | ASIS (I) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 22' N | 17° 59' W | Current meters | ASIS (II) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 47' N | 18° 16' W | Instrumented wave measurements | ASIS (I) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 22' N | 17° 59' W | Instrumented wave measurements | ASIS (II) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 42' N | 18° 7' W | Instrumented wave measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 42° 34' N | 16° 6' W | Instrumented wave measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 43° 13' N | 17° 44' W | Instrumented wave measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 42° 34' N | 16° 33' W | Instrumented wave measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 43° 24' N | 18° 18' W | Neutrally buoyant floats | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 43° 47' N | 18° 16' W | Neutrally buoyant floats | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 42° 31' N | 16° 15' W | Neutrally buoyant floats | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered. |
| 43° 47' N | 18° 16' W | Other dissolved gases | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 43° 24' N | 18° 18' W | Other dissolved gases | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 42° 31' N | 16° 15' W | Other dissolved gases | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered. |
| 42° 27' N | 16° 52' W | Other dissolved gases | PML Near Surface Sampler for dissolved gases. Recovered. |
| 41° 51' N | 18° 8' W | Other dissolved gases | PML Near Surface Sampler for dissolved gases. Recovered. |
| 41° 42' N | 18° 24' W | Other dissolved gases | PML Near Surface Sampler for dissolved gases. Recovered. |
| 42° 42' N | 16° 7' W | Other dissolved gases | PML Near Surface Sampler for dissolved gases. Recovered. |
| 43° 47' N | 18° 16' W | Other physical oceanographic measurements | ASIS (I) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 22' N | 17° 59' W | Other physical oceanographic measurements | ASIS (II) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 42' N | 18° 7' W | Other physical oceanographic measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 43° 13' N | 17° 44' W | Other physical oceanographic measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 42° 34' N | 16° 6' W | Other physical oceanographic measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 42° 34' N | 16° 33' W | Other physical oceanographic measurements | NOC Spar buoy: wave wire and acoustic bubble data. Recovered. |
| 43° 47' N | 18° 16' W | Oxygen | ASIS (I) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 22' N | 17° 59' W | Oxygen | ASIS (II) spar buoy: CO2, turbulence, hydrographic and meteorological parameters. Recovered |
| 43° 24' N | 18° 18' W | Oxygen | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 43° 47' N | 18° 16' W | Oxygen | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered |
| 42° 31' N | 16° 15' W | Oxygen | Neutrally buoyant float for oxygen, nitrogen, salinity and temperature measurements for use in air-sea flux calculations. Recovered. |
| 43° 37' N | 18° 3' W | Subsurface temperature measurements | Surface Argos/RF drifter with drogue/thermistor chain: position location for gaseous tracer patch. Recovered |
| 42° 35' N | 16° 10' W | Subsurface temperature measurements | Surface Argos/RF drifter/drogue/thermistor chain: position location for gaseous tracer patch. Recovered. |
| 42° 42' N | 17° 42' W | Surface drifters/drifting buoys | ASIP near surface profiler: turbulence parameters. Lost. |
| 43° 37' N | 18° 3' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue/thermistor chain: position location for gaseous tracer patch. Recovered |
| 43° 25' N | 17° 51' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue: position location for gaseous tracer patch. Recovered |
| 42° 36' N | 16° 7' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue: position location for gaseous tracer patch. Recovered. |
| 42° 22' N | 16° 4' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue: position location for gaseous tracer patch. Recovered. |
| 42° 42' N | 17° 42' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue: position location for gaseous tracer patch. Recovered. |
| 42° 19' N | 17° 46' W | Surface drifters/drifting buoys | Surface Argos/RF drifter with drogue: position location for gaseous tracer patch. Recovered. |
| 43° 31' N | 18° 0' W | Surface drifters/drifting buoys | Surface Argos/RF drifter/drogue/thermistor chain: position location for gaseous tracer patch. Recovered |
| 42° 35' N | 16° 10' W | Surface drifters/drifting buoys | Surface Argos/RF drifter/drogue/thermistor chain: position location for gaseous tracer patch. Recovered. |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 1 | Pumped air sample |
Date and time Horizontal spatial co-ordinates Reference numbers Sulphur species concentrations in the atmosphere |
| 1 | Pumped air sample |
Date and time Gas fluxes between the water column and the atmosphere Horizontal spatial co-ordinates Reference numbers Sampling parameters |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 907291 | Pumped air sample | 2007-06-24 13:00:45Z to 2007-07-17 06:47:57Z | From 43° 31' N, 18° 0' W to 55° 19' N, 9° 18' W | Click for more |
| 969448 | Pumped air sample | 2007-06-24 13:05:13Z to 2007-07-17 06:01:38Z | From 43° 34' N, 18° 1' W to 55° 17' N, 9° 24' W | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 62 | Sample taken from ship's non-toxic supply |
Organosulphur and organoselenium species concentration parameters in water bodies
Dissolved oxygen parameters in the water column |
| 48 | CTD frame plus rosette sampler |
Transmittance and attenuance of the water column
Organosulphur and organoselenium species concentration parameters in water bodies Dissolved oxygen parameters in the water column Optical backscatter Temperature of the water column Salinity of the water column Visible waveband radiance and irradiance measurements in the water column Raw light meter output Density of the water column Raw fluorometer output Raw suspended particulate material concentration sensor output Electrical conductivity of the water column Chlorophyll pigment concentrations in water bodies |
| 543 | All plastic clean surface pumped supply | Organosulphur and organoselenium species concentration parameters in water bodies |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
