Cruise inventory

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 — access key 'C' (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 
Series/Profiles 
1  Acoustic doppler current profiler
Vertical velocity of the water column (currents)
Acoustic backscatter in the water column
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time
Vertical velocity of the water column (currents)
Acoustic backscatter in the water column
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time

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
Quality control flags
Ammonium and ammonia concentration parameters in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers
Quality control flags
Ammonium and ammonia concentration parameters in water bodies
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers

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

BODC idDate/TimeLocationDoc.
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
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
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
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
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
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
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
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
Discrete samples 
73  CTD frame plus rosette samplerPhytoplankton taxonomic biomass in water bodies
Phytoplankton generic biomass in water bodies
Dissolved total and organic nitrogen concentrations in the water column
Phytoplankton growth
Ammonium and ammonia concentration parameters in water bodies
Nitrification rate in the water column
Raw suspended particulate material concentration sensor output
Radioactivity in the water column
Zooplankton taxonomy-related abundance per unit volume of the water column
Particulate total and organic carbon concentrations in the water column
Organic sulphur compound dynamics in the water column
Oxygen production and respiration in the water column
Particulate total and organic nitrogen concentrations in the water column
Density of the water column
Visible waveband radiance and irradiance measurements in the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Microzooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column
Transmittance and attenuance of the water column
Bacteria generic abundance in water bodies
Metadata parameters
Bacterial production in the water column
Water body released tracers
Chlorophyll pigment concentrations in water bodies
Dissolved organic carbon uptake and production in the water column
Phytoplankton taxonomic abundance in water bodies
Primary production in the water column
Silicate concentration parameters in the water column
Other halocarbon concentrations in water bodies
Raw fluorometer output
Virus abundance in water bodies
Zooplankton non taxonomy-related abundance per unit volume of the water column
Dissolved organic carbon concentration in the water column
Salinity of the water column
Temperature of the water column
Raw light meter output
Microzooplankton grazing
Nitrate concentration parameters in the water column
Plankton abundance per unit volume of the water column
Bacteria non taxonomy-related biomass expressed as protein per unit volume of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Dissolved inorganic carbon production and respiration in the water column
Zooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column
Plankton biomass expressed as carbon per unit volume of the water column
Dissolved oxygen parameters in the water column
Microzooplankton taxonomic abundance in water bodies
Nitrite concentration parameters in the water column
New production in water bodies
Phosphate concentration parameters in the water column
Phytoplankton generic abundance in water bodies
Regenerated production in water bodies
92  Expendable BathythermographTemperature of the water column
2  Manual water sample taken using Z-boat away from mother shipOrganosulphur and organoselenium species concentration parameters in water bodies
298  Sample taken from ship's non-toxic supplyOrganic sulphur compound dynamics in the water column
Oxygen production and respiration in the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Bacteria generic abundance in water bodies
Chlorophyll pigment concentrations in water bodies
Salinity of the water column
Bacteria non taxonomy-related biomass expressed as protein per unit volume of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
10  WP-2 zooplankton netZooplankton taxonomy-related abundance per unit volume of the water column
Stomach and gut contents
Zooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column