Resources

RRS Discovery D241

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD241
Cruise period1999-06-04 — 1999-07-01
StatusCompleted
Port of departureSouthampton, United Kingdom
Port of returnSouthampton, United Kingdom
PurposeResearch
Objectives1. Characterisation of the plankton communities (algae, bacteria, virus, microzooplankton, mesozooplankton) associated with the developing bloom and addressing the role of the individual components in biogeochemical synthesis of DMA and related compounds.
2. Determination of the temporal changes in physical, optical, chemical and biological parameters that affect the progression of the coccolithophore bloom.
3. Quantification of DMSPp, DMSPd, DMS, and DMSO and their production, consumption and transformation processes during the bloom.
4. Generation of data for testing DMS biogeochemistry models and the models of microzooplankton trophodynamics in DMS generation within the bloom.
Chief scientistPeter H Burkill (Plymouth Marine Laboratory)
Cruise reportRRS Discovery D241 cruise report d241.pdf (1.55 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Track chartsRRS Discovery D241 cruise track — d241track.pdf (0.03 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: Surface temperature, salinity and fluorescence periodically plotted in near real time as an aid to detection of the bloom.
BathythermographQuantity: number of profiles = 94
Description: XBT's
CTD stationsQuantity: number of profiles = 71
Current profiler (eg ADCP)Description: Hull-mounted ADCP used to record data throughout the cruise.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: Surface temperature, salinity and fluorescence periodically plotted in near real time as an aid to detection of the bloom.
Data held at BODC Get data
Series/Profiles 
1  Acoustic doppler current profiler
Date and time
Vertical spatial coordinates
Vertical velocity of the water column (currents)
Horizontal velocity of the water column (currents)
Metadata parameters
Acoustic backscatter in the water column
Date and time
Vertical spatial coordinates
Vertical velocity of the water column (currents)
Horizontal velocity of the water column (currents)
Metadata parameters
Acoustic backscatter in the water column

BODC idDate/TimeLocationDoc.
5668761999-06-18 09:25  — 1999-06-20 15:55 58° 52' 27" N  3° 11' 38" E  View metadata report for BODC series reference number 566876
41  Bottle station
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Silicate concentration parameters in the water column
Ammonium and ammonia concentration parameters in water bodies
Nitrate concentration parameters in the water column
Quality control flags
Reference numbers
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Vertical spatial coordinates
Silicate concentration parameters in the water column
Ammonium and ammonia concentration parameters in water bodies
Nitrate concentration parameters in the water column
Quality control flags

BODC idDate/TimeLocationDoc.
12514541999-06-14 05:25 59° 0' 4" N  1° 30' 5" E  View metadata report for BODC series reference number 1251454
12515091999-06-14 12:56 59° 15' 1" N  1° 48' 40" E  View metadata report for BODC series reference number 1251509
12515341999-06-17 10:32 58° 56' 41" N  2° 50' 35" E  View metadata report for BODC series reference number 1251534
12518111999-06-25 23:23 58° 15' 41" N  3° 33' 59" E  View metadata report for BODC series reference number 1251811
12518351999-06-26 11:27 58° 17' 27" N  3° 33' 12" E  View metadata report for BODC series reference number 1251835
12514781999-06-14 09:51 59° 8' 45" N  1° 41' 31" E  View metadata report for BODC series reference number 1251478
12517921999-06-25 11:31 58° 15' 44" N  3° 29' 22" E  View metadata report for BODC series reference number 1251792
12518601999-06-27 11:18 58° 42' 29" N  2° 36' 14" E  View metadata report for BODC series reference number 1251860
12514911999-06-14 11:37 59° 10' 57" N  1° 45' 4" E  View metadata report for BODC series reference number 1251491
12515461999-06-17 12:13 58° 56' 29" N  3° 0' 39" E  View metadata report for BODC series reference number 1251546
12516261999-06-19 01:49 58° 49' 30" N  3° 12' 36" E  View metadata report for BODC series reference number 1251626
12517431999-06-23 01:23 58° 25' 59" N  3° 28' 50" E  View metadata report for BODC series reference number 1251743
12518591999-06-27 01:17 58° 46' 46" N  2° 40' 24" E  View metadata report for BODC series reference number 1251859
12518721999-06-27 23:37 58° 42' 1" N  2° 30' 34" E  View metadata report for BODC series reference number 1251872
12518961999-06-28 11:32 58° 40' 15" N  2° 27' 36" E  View metadata report for BODC series reference number 1251896
12515581999-06-17 13:37 58° 51' 26" N  3° 0' 37" E  View metadata report for BODC series reference number 1251558
12516141999-06-19 00:06 58° 49' 30" N  3° 12' 44" E  View metadata report for BODC series reference number 1251614
12516751999-06-21 01:26 58° 37' 7" N  3° 30' 50" E  View metadata report for BODC series reference number 1251675
12517671999-06-23 23:46 58° 20' 32" N  3° 28' 32" E  View metadata report for BODC series reference number 1251767
12518231999-06-26 01:05 58° 14' 46" N  3° 33' 42" E  View metadata report for BODC series reference number 1251823
12514661999-06-14 07:52 59° 5' 58" N  1° 37' 37" E  View metadata report for BODC series reference number 1251466
12515711999-06-17 15:07 58° 51' 23" N  2° 50' 33" E  View metadata report for BODC series reference number 1251571
12516871999-06-21 13:06 58° 33' 0" N  3° 27' 14" E  View metadata report for BODC series reference number 1251687
12517791999-06-24 01:26 58° 20' 41" N  3° 28' 6" E  View metadata report for BODC series reference number 1251779
12518471999-06-26 23:47 58° 46' 49" N  2° 40' 4" E  View metadata report for BODC series reference number 1251847
12515101999-06-14 14:28 59° 19' 22" N  1° 54' 25" E  View metadata report for BODC series reference number 1251510
12515831999-06-18 00:02 58° 52' 37" N  3° 3' 0" E  View metadata report for BODC series reference number 1251583
12516021999-06-18 11:41 58° 51' 4" N  3° 14' 54" E  View metadata report for BODC series reference number 1251602
12516631999-06-20 23:40 58° 36' 50" N  3° 30' 50" E  View metadata report for BODC series reference number 1251663
12517181999-06-22 12:09 58° 25' 47" N  3° 30' 4" E  View metadata report for BODC series reference number 1251718
12516991999-06-22 00:17 58° 30' 50" N  3° 30' 18" E  View metadata report for BODC series reference number 1251699
12517061999-06-22 01:59 58° 31' 13" N  3° 30' 19" E  View metadata report for BODC series reference number 1251706
12517311999-06-22 23:38 58° 25' 43" N  3° 29' 30" E  View metadata report for BODC series reference number 1251731
12517551999-06-23 11:33 58° 24' 36" N  3° 24' 45" E  View metadata report for BODC series reference number 1251755
12518841999-06-28 01:04 58° 41' 36" N  2° 31' 12" E  View metadata report for BODC series reference number 1251884
12519031999-06-17 08:43 58° 54' 34" N  2° 55' 43" E  View metadata report for BODC series reference number 1251903
12515221999-06-14 15:59 59° 23' 54" N  2° 0' 16" E  View metadata report for BODC series reference number 1251522
12515951999-06-18 02:06 58° 52' 32" N  3° 4' 21" E  View metadata report for BODC series reference number 1251595
12516381999-06-19 11:50 58° 46' 39" N  3° 17' 55" E  View metadata report for BODC series reference number 1251638
12516511999-06-20 11:59 58° 42' 39" N  3° 24' 35" E  View metadata report for BODC series reference number 1251651
12517801999-06-24 11:40 58° 17' 13" N  3° 31' 5" E  View metadata report for BODC series reference number 1251780
9  Water temperature and/or salinity monitor
Date and time
Temperature of the water column
Date and time
Temperature of the water column

BODC idDate/TimeLocationDoc.
5248921999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524892
5248311999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524831
5248431999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524843
5248671999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524867
5248801999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524880
5249111999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524911
5248791999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524879
5248181999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524818
5248551999-06-17 01:46  — 1999-06-26 16:30 58° 13' 47" N  2° 47' 34" E — 58° 56' 23" N  4° 5' 41" E  View metadata report for BODC series reference number 524855
Discrete samples 
73  CTD frame plus rosette samplerRadioactivity in water bodies
Bacteria non taxonomy-related biomass expressed as protein per unit volume of the water column
Raw fluorometer output
Oxygen production and respiration in the water column
Nitrate concentration parameters in the water column
New production in water bodies
Primary production in the water column
Particulate total and organic carbon concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Dissolved organic carbon uptake and production in the water column
Dissolved total and organic nitrogen concentrations in the water column
Bacterial production in the water column
Transmittance and attenuance of the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Nitrification and denitrification rates in water bodies
Regenerated production in water bodies
Carotenoid and flavenoid pigment concentrations in water bodies
Organic sulphur compound dynamics in the water column
Particulate total and organic nitrogen concentrations in the water column
Nitrite concentration parameters in the water column
Phytoplankton taxonomic abundance in water bodies
Phosphate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Zooplankton taxonomy-related abundance per unit volume of the water column
Dissolved oxygen parameters in the water column
Microzooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column
Zooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column
Phytoplankton growth
Water body released tracers
Phytoplankton taxonomic biomass in water bodies
Phytoplankton generic biomass in water bodies
Dissolved organic carbon concentration in the water column
Silicate concentration parameters in the water column
Visible waveband radiance and irradiance measurements in the water column
Bacteria generic abundance in water bodies
Other halocarbon concentrations in water bodies
Zooplankton non taxonomy-related abundance per unit volume of the water column
Phytoplankton generic abundance in water bodies
Plankton abundance per unit volume of the water column
Density of the water column
Virus abundance in water bodies
Ammonium and ammonia concentration parameters in water bodies
Plankton biomass expressed as carbon per unit volume of the water column
Raw light meter output
Microzooplankton taxonomic abundance in water bodies
Microzooplankton grazing
Metadata parameters
Dissolved inorganic carbon production and respiration in the water column
Raw suspended particulate material concentration sensor output
3  Drifting Buoy
94  Expendable BathythermographTemperature of the water column
2  Instrument mooring
2  Manual water sample taken using Z-boat away from mother shipOrganosulphur and organoselenium species concentration parameters in water bodies
299  Sample taken from ship's non-toxic supplyOrganosulphur and organoselenium species concentration parameters in water bodies
Carotenoid and flavenoid pigment concentrations in water bodies
Organic sulphur compound dynamics in the water column
Salinity of the water column
Bacteria generic abundance in water bodies
Bacteria non taxonomy-related biomass expressed as protein per unit volume of the water column
Oxygen production and respiration in the water column
Chlorophyll pigment concentrations in water bodies
3335  Shipborne Acoustic Doppler Current Profile
10  WP-2 zooplankton netStomach and gut contents
Zooplankton taxonomy-related abundance per unit volume of the water column
Zooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column