BODC Cruise Metadata Report for RRS Discovery cruise DY026A
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 cruise DY026A |
|---|---|
| Short name | DY026A |
| Objectives and Narrative |
DY26A formed part of the NERC shelf sea biogeochemistry programme. It had four principal objectives
1. To continue the seasonal time series sampling at three key sites in the Celtic Sea (Shelf break, Candyfloss, Celtic Deep). 2. To provide sampling opportunities for the Shelf sea biogeochemistry students 3. To obtain samples of sinking particulate organic matter at differing stages of the tidal cycle to examine the role of tidal resuspension on elemental cycling beneath the thermocline. 4. To trial autonomous nitrate sensors CTDs and gliders as part of the Sensors on Gliders programme Objective 1: We conducted CTD casts at each key site, sampling for DIC and nitrate concentrations to evaluate the differential uptake and remineralisation of these tracers which is key to the operation of the shelf sea pump. In addition we made at each site many of the rate measurements the programme needs to make to understand the differential elemental cycling. Objective 2: Each SSB student got a good range of sampling opportunities at various sites in varying weather conditions. Objective 3: Following the standard SSB observations outlined in objective 1 we undertook a highly temporally resolved timeseries of observations at the Celtic Deep. This comprised hourly CTDs with very high resolution sampling near the bed coupled to hourly snowcatcher deployments and near bottom respiration, bacterial production and nitrification measurements. Following this we revisited the same site over a tidal cycle and collected near bed suspended material for similar biological rate measurements. Objective 4: The Sensors on gliders programme has integrated a nitrate sensor into a glider. This combination was trialled at the shelf break and on one further occasion during the cruise. Both deployments produced useful data. In addition the nitrate sensor itself was deployed on the CTD in standalone mode on two occasions with extended bottle stops to allow reliable measurements to be made. |
| Ship | RRS Discovery |
| Departure Port | Southampton, United Kingdom |
| Departure Date | 2014-08-03 |
| Arrival Port | Southampton, United Kingdom |
| Arrival Date | 2014-08-14 |
| Principal Scientist(s) | Richard Sanders (National Oceanography Centre, Southampton) |
| Responsible Organisation | National Oceanography Centre, Southampton |
| Associated Project(s) | Shelf Sea Biogeochemistry |
| IHB Sea Areas Visited | Celtic Sea |
| Marsden Squares Visited | 181 |
| Work Area Description | |
| 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 =
33
Description: Temperature and Salinity were measured continuously on 33 CTD stations |
| Chemical oceanography | |
| Alkalinity |
Quantity:
number of samples =
10
Description: Samples for Alkalinity and TCO2 were taken on 10 CTD stations at 6 depths in the vertical. |
| Ammonia |
Quantity:
number of stations =
33
Description: Inorganic nutrients were measured at 6-10 depths on CTD casts and on experiments undertaken to examine zooplankton metabolism |
| Carbon dioxide |
Quantity:
number of samples =
10
Description: Samples for Alkalinity and TCO2 were taken on 10 CTD stations at 6 depths in the vertical. |
| Nitrate |
Quantity:
number of stations =
33
Description: Inorganic nutrients were measured at 6-10 depths on CTD casts and on experiments undertaken to examine zooplankton metabolism |
| Nitrite |
Quantity:
number of stations =
33
Description: Inorganic nutrients were measured at 6-10 depths on CTD casts and on experiments undertaken to examine zooplankton metabolism |
| Other dissolved gases |
Quantity:
number of stations =
10
Description: Oxygen/ Argon ratios were measured on water from 10 CTD stations. |
| Oxygen |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Phosphate |
Quantity:
number of stations =
33
Description: Inorganic nutrients were measured at 6-10 depths on CTD casts and on experiments undertaken to examine zooplankton metabolism |
| Silicate |
Quantity:
number of stations =
33
Description: Inorganic nutrients were measured at 6-10 depths on CTD casts and on experiments undertaken to examine zooplankton metabolism |
| Total - N |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Total - P |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Biology and fisheries | |
| Biochemical measurements (eg lipids, amino acids) |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Dissolved organic matter (inc DOC) |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Other biological/fisheries measurement |
Quantity:
number of measurements =
10
Description: Respiration measurements were made on water collected using CTD samplers and Marine Snowcatchers. |
| Other biological/fisheries measurement |
Quantity:
number of deployments =
43
Description: 43 deployments of marine snowcatchers were undertaken |
| Other biological/fisheries measurement |
Quantity:
number of measurements =
10
Description: Ammonification and Nitrification measurements were made on water collected using CTD samplers and Marine Snowcatchers. |
| Particulate organic matter (inc POC, PON) |
Quantity:
number of stations =
33
Description: Dissolved oxygen, total nitrogen and phosphorus and a range of organic tracers such as amino acids were sampled from 6-10 bottles on 33 CTD casts |
| Pelagic bacteria/micro-organisms |
Quantity:
number of measurements =
10
Description: Bacterial Production measurements were made on water collected using CTD samplers and Marine Snowcatchers. |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
number of stations =
10
Description: Size fractionated Phytoplankton Productivity and Chlorophyll Concentrations were measured on water from 10 CTD stations. |
| Phytoplankton pigs (eg chlorophyll, fluorescence) |
Quantity:
number of samples =
10
Description: HPLC and Lugols samples were taken from CTD bottles fired in the deep Chlorophyll maxima. Similar observations and samples were made using samples from Marine snowcatchers triggered above and below the thermocline. |
| Primary productivity |
Quantity:
number of stations =
10
Description: Size fractionated Phytoplankton Productivity and Chlorophyll Concentrations were measured on water from 10 CTD stations. |
| Zooplankton |
Quantity:
number of samples =
10
Description: HPLC and Lugols samples were taken from CTD bottles fired in the deep Chlorophyll maxima. Similar observations and samples were made using samples from Marine snowcatchers triggered above and below the thermocline. |
| Zooplankton |
Quantity:
number of hauls =
52
Description: Net hauls were undertaken on 52 Occasions. Samples were vertically resolved, collected at day and night and size segregated (>63 microns and >200 microns) |
| Geology and geophysics | |
| Core - soft bottom |
Quantity:
number of cores =
15
Description: A NIOZ box corer was used on 15 occasions. Experimental work on ammonium release was undertaken and samples preserved. |
Cruise Inventory Mooring/Buoy Operations
| Latitude | Longitude | Data type | Description |
|---|---|---|---|
| 48° 20' N | 9° 43' W | Other physical oceanographic measurements | Deployment and recovery of glider with nitrate sensor |
| 51° 12' N | 6° 8' W | Other physical oceanographic measurements | Deployment and recovery of glider with nitrate sensor |
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 27 | Bottle station |
Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Quality control flags Reference numbers Silicate concentration parameters in the water column Vertical spatial coordinates |
| 3 | Bottle station |
Nitrate concentration parameters in the water column Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Quality control flags Reference numbers Silicate concentration parameters in the water column Vertical spatial coordinates |
| 9 | Bottle station |
Alkalinity, acidity and pH of the water column Quality control flags Reference numbers Total dissolved inorganic carbon (TCO2) concentration in the water column Vertical spatial coordinates |
| 32 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Density of the water column Dissolved oxygen parameters in the water column Electrical conductivity of the water column Optical backscatter Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column Vertical spatial coordinates Visible waveband radiance and irradiance measurements in the water column |
| 1 | CTD/STD cast |
Chlorophyll pigment concentrations in water bodies Density of the water column Dissolved oxygen parameters in the water column Electrical conductivity of the water column Optical backscatter Reference numbers Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column Vertical spatial coordinates |
| 1 | Meteorological data logger |
Air pressure Air temperature Atmospheric humidity Date and time Horizontal spatial co-ordinates Solar Radiation Visible waveband radiance and irradiance measurements in the atmosphere Wind strength and direction |
| 1 | Multiple instrument types |
Chlorophyll pigment concentrations in water bodies Date and time Electrical conductivity of the water column Horizontal spatial co-ordinates Metadata parameters Raw fluorometer output Salinity of the water column Temperature of the water column Transmittance and attenuance of the water column |
| 1 | Single-beam echosounder |
Bathymetry and Elevation Date and time Horizontal platform movement Horizontal spatial co-ordinates Platform or instrument orientation |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 1372994 | CTD/STD cast | 2014-08-04 11:21Z | 49° 48' N, 5° 28' W | Click for more |
| 1373008 | CTD/STD cast | 2014-08-05 05:10Z | 49° 23' N, 8° 37' W | Click for more |
| 1373021 | CTD/STD cast | 2014-08-05 11:03Z | 49° 22' N, 8° 36' W | Click for more |
| 1373033 | CTD/STD cast | 2014-08-05 16:10Z | 49° 22' N, 8° 36' W | Click for more |
| 1373045 | CTD/STD cast | 2014-08-06 08:23Z | 48° 20' N, 9° 43' W | Click for more |
| 1373057 | CTD/STD cast | 2014-08-07 06:04Z | 48° 34' N, 9° 30' W | Click for more |
| 1373069 | CTD/STD cast | 2014-08-07 11:10Z | 48° 34' N, 9° 31' W | Click for more |
| 1373070 | CTD/STD cast | 2014-08-07 15:00Z | 48° 34' N, 9° 30' W | Click for more |
| 1373082 | CTD/STD cast | 2014-08-08 11:05Z | 50° 15' N, 7° 44' W | Click for more |
| 1373094 | CTD/STD cast | 2014-08-09 06:08Z | 51° 8' N, 6° 35' W | Click for more |
| 1373101 | CTD/STD cast | 2014-08-09 10:40Z | 51° 7' N, 6° 37' W | Click for more |
| 1373113 | CTD/STD cast | 2014-08-09 13:30Z | 51° 7' N, 6° 37' W | Click for more |
| 1373125 | CTD/STD cast | 2014-08-09 16:04Z | 51° 7' N, 6° 37' W | Click for more |
| 1373137 | CTD/STD cast | 2014-08-10 06:58Z | 51° 9' N, 6° 34' W | Click for more |
| 1373149 | CTD/STD cast | 2014-08-10 08:00Z | 51° 9' N, 6° 34' W | Click for more |
| 1373150 | CTD/STD cast | 2014-08-10 08:59Z | 51° 9' N, 6° 34' W | Click for more |
| 1373162 | CTD/STD cast | 2014-08-10 10:00Z | 51° 9' N, 6° 35' W | Click for more |
| 1373174 | CTD/STD cast | 2014-08-10 11:03Z | 51° 9' N, 6° 36' W | Click for more |
| 1373186 | CTD/STD cast | 2014-08-10 12:04Z | 51° 9' N, 6° 36' W | Click for more |
| 1373198 | CTD/STD cast | 2014-08-10 12:59Z | 51° 9' N, 6° 36' W | Click for more |
| 1373205 | CTD/STD cast | 2014-08-10 13:59Z | 51° 9' N, 6° 36' W | Click for more |
| 1373217 | CTD/STD cast | 2014-08-10 15:08Z | 51° 9' N, 6° 36' W | Click for more |
| 1373229 | CTD/STD cast | 2014-08-10 16:10Z | 51° 9' N, 6° 36' W | Click for more |
| 1373230 | CTD/STD cast | 2014-08-10 17:00Z | 51° 9' N, 6° 36' W | Click for more |
| 1373242 | CTD/STD cast | 2014-08-10 17:57Z | 51° 9' N, 6° 36' W | Click for more |
| 1373254 | CTD/STD cast | 2014-08-10 19:06Z | 51° 9' N, 6° 36' W | Click for more |
| 1373266 | CTD/STD cast | 2014-08-11 10:58Z | 51° 12' N, 6° 8' W | Click for more |
| 1373278 | CTD/STD cast | 2014-08-11 14:01Z | 51° 12' N, 6° 8' W | Click for more |
| 1373291 | CTD/STD cast | 2014-08-12 07:00Z | 51° 9' N, 6° 36' W | Click for more |
| 1373309 | CTD/STD cast | 2014-08-12 11:00Z | 51° 8' N, 6° 37' W | Click for more |
| 1373310 | CTD/STD cast | 2014-08-12 13:26Z | 51° 8' N, 6° 37' W | Click for more |
| 1373322 | CTD/STD cast | 2014-08-12 18:00Z | 51° 8' N, 6° 37' W | Click for more |
| 1373334 | CTD/STD cast | 2014-08-13 11:00Z | 51° 12' N, 6° 3' W | Click for more |
| 1759880 | Multiple instrument types | 2014-08-03 13:11Z to 2014-08-14 19:07Z | 48° 12' N to 51° 19' N; 9° 53' W to 1° 17' W | Click for more |
| 1759892 | Meteorological data logger | 2014-08-03 13:11Z to 2014-08-14 19:07Z | 48° 12' N to 51° 19' N; 9° 53' W to 1° 17' W | Click for more |
| 1759911 | Single-beam echosounder | 2014-08-03 13:11Z to 2014-08-14 19:07Z | 48° 12' N to 51° 19' N; 9° 53' W to 1° 17' W | Click for more |
| 2118110 | Bottle station | 2014-08-04 11:40Z | 49° 48' N, 5° 28' W | Click for more |
| 2118122 | Bottle station | 2014-08-05 11:19Z | 49° 22' N, 8° 36' W | Click for more |
| 2118134 | Bottle station | 2014-08-06 10:19Z | 48° 20' N, 9° 43' W | Click for more |
| 2118146 | Bottle station | 2014-08-07 11:29Z | 48° 34' N, 9° 31' W | Click for more |
| 2118158 | Bottle station | 2014-08-08 11:19Z | 50° 15' N, 7° 44' W | Click for more |
| 2118171 | Bottle station | 2014-08-09 10:54Z | 51° 7' N, 6° 37' W | Click for more |
| 2118183 | Bottle station | 2014-08-10 11:14Z | 51° 9' N, 6° 36' W | Click for more |
| 2118195 | Bottle station | 2014-08-12 11:14Z | 51° 8' N, 6° 37' W | Click for more |
| 2118202 | Bottle station | 2014-08-13 11:14Z | 51° 12' N, 6° 3' W | Click for more |
| 2127451 | Bottle station | 2014-08-04 11:40Z | 49° 48' N, 5° 28' W | Click for more |
| 2127463 | Bottle station | 2014-08-05 05:34Z | 49° 23' N, 8° 37' W | Click for more |
| 2127475 | Bottle station | 2014-08-05 11:19Z | 49° 22' N, 8° 36' W | Click for more |
| 2127487 | Bottle station | 2014-08-05 17:22Z | 49° 22' N, 8° 36' W | Click for more |
| 2127499 | Bottle station | 2014-08-06 10:19Z | 48° 20' N, 9° 43' W | Click for more |
| 2127506 | Bottle station | 2014-08-07 06:20Z | 48° 34' N, 9° 30' W | Click for more |
| 2127518 | Bottle station | 2014-08-07 11:29Z | 48° 34' N, 9° 31' W | Click for more |
| 2127531 | Bottle station | 2014-08-07 15:17Z | 48° 34' N, 9° 30' W | Click for more |
| 2127543 | Bottle station | 2014-08-08 11:19Z | 50° 15' N, 7° 44' W | Click for more |
| 2127555 | Bottle station | 2014-08-09 06:21Z | 51° 8' N, 6° 35' W | Click for more |
| 2127567 | Bottle station | 2014-08-09 10:54Z | 51° 7' N, 6° 37' W | Click for more |
| 2127579 | Bottle station | 2014-08-09 14:30Z | 51° 7' N, 6° 37' W | Click for more |
| 2127580 | Bottle station | 2014-08-09 16:20Z | 51° 7' N, 6° 37' W | Click for more |
| 2127592 | Bottle station | 2014-08-10 07:10Z | 51° 9' N, 6° 34' W | Click for more |
| 2127611 | Bottle station | 2014-08-10 08:15Z | 51° 9' N, 6° 34' W | Click for more |
| 2127623 | Bottle station | 2014-08-10 09:10Z | 51° 9' N, 6° 34' W | Click for more |
| 2127635 | Bottle station | 2014-08-10 10:08Z | 51° 9' N, 6° 35' W | Click for more |
| 2127647 | Bottle station | 2014-08-10 11:14Z | 51° 9' N, 6° 36' W | Click for more |
| 2127659 | Bottle station | 2014-08-10 12:10Z | 51° 9' N, 6° 36' W | Click for more |
| 2127660 | Bottle station | 2014-08-10 13:09Z | 51° 9' N, 6° 36' W | Click for more |
| 2127672 | Bottle station | 2014-08-10 14:10Z | 51° 9' N, 6° 36' W | Click for more |
| 2127684 | Bottle station | 2014-08-10 15:19Z | 51° 9' N, 6° 36' W | Click for more |
| 2127696 | Bottle station | 2014-08-10 16:17Z | 51° 9' N, 6° 36' W | Click for more |
| 2127703 | Bottle station | 2014-08-10 17:12Z | 51° 9' N, 6° 36' W | Click for more |
| 2127715 | Bottle station | 2014-08-10 18:09Z | 51° 9' N, 6° 36' W | Click for more |
| 2127727 | Bottle station | 2014-08-10 19:15Z | 51° 9' N, 6° 36' W | Click for more |
| 2127739 | Bottle station | 2014-08-11 11:14Z | 51° 12' N, 6° 8' W | Click for more |
| 2127740 | Bottle station | 2014-08-12 07:10Z | 51° 9' N, 6° 36' W | Click for more |
| 2127752 | Bottle station | 2014-08-12 11:14Z | 51° 8' N, 6° 37' W | Click for more |
| 2127764 | Bottle station | 2014-08-13 11:14Z | 51° 12' N, 6° 3' W | Click for more |
Project Database
| # Events | Gear Type | Parameters Held |
|---|---|---|
| 10 | Drifting Buoy | |
| 51 | Unspecified zooplankton net or nets | |
| 14 | Box core | |
| 4 | Stand-alone pumps | |
| 33 | CTD frame plus rosette sampler |
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Salinity of the water column Silicate concentration parameters in the water column Ammonium and ammonia concentration parameters in water bodies Nitrate concentration parameters in the water column Alkalinity, acidity and pH of the water column |
| 2 | Autonomous Underwater Vehicle deployment | |
| 44 | Marine snow catcher |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
