Resources

RRS Discovery D338

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD338
Cruise period2009-04-15 — 2009-05-27
StatusCompleted
Port of departureSanta Cruz de Tenerife, Spain
Port of returnSanta Cruz de Tenerife, Spain
PurposeResearch
ObjectivesThis cruise is part of the UK science contribution to the international SOLAS project (Surface Ocean Lower Atmosphere Study www.uea.ac.uk/env/solas/) which aims to advance our understanding of environmentally important interactions between the ocean and the atmosphere. Data collected during the cruise will help to determine the influence of coastal/shelf regions (20-200 km offshore) on microbiological activity in the ocean and chemical interactions between the ocean and the atmosphere. Deep water containing high concentrations of nutrients such as nitrate, and gases such as nitrous oxide and methane, rises to the surface (upwells) at the Mauritanian shelf edge and moves offshore. These nutrients can be chemically altered by sunlight and used by bacteria and microscopic plants to grow. The gases escape to the atmosphere and contribute to global warming. This cruise will sample the upwelled water as it moves offshore measuring its temperature, salinity, nutrient and gas content and the impact this water has on microbiological growth and atmospheric composition in order to improve international global climate models.

The cruise has three scientific objectives:

1. To determine the role of upwelling on the supply, loss and air-sea exchange of climatically important gases produced by plankton
2. To determine the role of light in breaking down upwelled and recently produced dissolved organic matter and in producing climatically important trace gases
3. To determine the impact of nutrient enriched upwelled water on the spatial and temporal variability of plankton community structure and activity and resultant influence on biogenic gas flux
Chief scientistCarol Robinson (University of East Anglia School of Environmental Sciences)
ProjectSurface Ocean Lower Atmosphere Study (UK SOLAS)
Coordinating bodySchool of Environmental Sciences, University of East Anglia
Cruise reportRRS Discovery D338 cruise report d338.pdf (7.73 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificEastern Atlantic
Track chartsRRS Discovery D338 cruise track — d338trk.pdf (0.02 MB) 
Measurements 
Physical oceanography 
Transparency (eg transmissometer)Quantity: number of deployments = 27
Description: In-water optics rig: i) Fast Repetition Rate Fluorometer (phytoplankton physiology); ii) Satlantic UV sensor (downwelling spectral UV light at 305, 320, 340 and 380 nm); iii) Wetlabs ac-9 (attenuation and absorption at 9 wavelengths: 412, 440, 488, 510, 532, 555, 650, 676, 715 nm - decomposed into a(c) total and CDOM by using casts with and without supracap filters); iv) SeaBird SBE19+ CTD (temperature and salinity with depth for correction of the ac9); v) ancillary PAR measurements (determination of light levels in water column)
Optics (eg underwater light levels)Quantity: number of deployments = 27
Description: In-water optics rig: i) Fast Repetition Rate Fluorometer (phytoplankton physiology); ii) Satlantic UV sensor (downwelling spectral UV light at 305, 320, 340 and 380 nm); iii) Wetlabs ac-9 (attenuation and absorption at 9 wavelengths: 412, 440, 488, 510, 532, 555, 650, 676, 715 nm - decomposed into a(c) total and CDOM by using casts with and without supracap filters); iv) SeaBird SBE19+ CTD (temperature and salinity with depth for correction of the ac9); v) ancillary PAR measurements (determination of light levels in water column)
Chemical oceanography 
OxygenQuantity: number of stations = 51
Description: Vertical profiles for dissolved oxygen concentration
OxygenQuantity: number of experiments = 19
Description: Photo-oxidation experiments - carbon monoxide, dissolved oxygen and pH
OxygenQuantity: number of samples = 30
Description: Calibration samples for optode in non toxic seawater supply
OxygenQuantity: number of measurements = 50
Description: Continuous measurements of pCO2 and O2using non toxic supply
Carbon dioxideQuantity: number of measurements = 50
Description: Continuous measurements of pCO2 and O2using non toxic supply
Other dissolved gasesQuantity: number of experiments = 19
Description: Photo-oxidation experiments - carbon monoxide, dissolved oxygen and pH
Other dissolved gasesQuantity: number of stations = 40
Description: OVOC analysis
Other dissolved gasesQuantity: number of profiles = 36
Description: Vertical Profiles for DMS and DMSP
Other dissolved gasesQuantity: number of stations = 28
Description: Vertical profiles - carbon monoxide
Other dissolved gasesQuantity: activity duration in days = 15
Description: Underway SF6 (non toxic)
Other dissolved gasesQuantity: number of stations = 25
Description: 3He/4He measurements on vertical profiles
Other dissolved gasesQuantity: number of stations = 50
Description: SF6 measurements - vertical profiles
Other dissolved gasesQuantity: number of stations = 38
Description: Molecular analysis of methanogens
Other dissolved gasesQuantity: number of stations = 35
Description: Vertical Profiles for N2O and CH4
PhosphateQuantity: number of stations = 40
Description: Alkaline phosphatase analysis
PhosphateQuantity: number of stations = 68
Description: Vertical profiles for micronutrient analysis, analysed by colorimetric segmented flow auto-analysis
NitrateQuantity: number of stations = 68
Description: Vertical profiles for micronutrient analysis, analysed by colorimetric segmented flow auto-analysis
NitriteQuantity: number of stations = 68
Description: Vertical profiles for micronutrient analysis, analysed by colorimetric segmented flow auto-analysis
AmmoniaQuantity: number of stations = 68
Description: Vertical profiles for micronutrient analysis, analysed by colorimetric segmented flow auto-analysis
AmmoniaQuantity: number of stations = 28
Description: Vertical profiles - ammonia
AmmoniaQuantity: number of experiments = 19
Description: Photo-oxidation experiments - ammonia
SilicateQuantity: number of stations = 68
Description: Vertical profiles for micronutrient analysis, analysed by colorimetric segmented flow auto-analysis
AlkalinityQuantity: number of stations = 29
Description: Vertical profiles for dissolved DIC/ALK concentration to be analysed in UEA by Carol Robinson
pHQuantity: number of experiments = 19
Description: Photo-oxidation experiments - carbon monoxide, dissolved oxygen and pH
IsotopesQuantity: number of stations = 11
Description: Sample collection for determination of 15N-N2O
Other chemical oceanographic measurementsQuantity: number of stations = 25
Description: N-assimilation kinetics, NH4+ regeneration, NH4+ oxidation, NO2- oxidation.
Other chemical oceanographic measurementsQuantity: number of stations = 10
Description: Surfactants
Biology and fisheries 
Primary productivityQuantity: number of stations = 20
Description: Vertical profiles for gross primary production, community respiration and net community production (O2)
Primary productivityQuantity: number of stations = 28
Description: Vertical profiles for on-board carbon fixation primary production
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 47
Description: Vertical profiles for phytoplankton pigment post-cruise analyses
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of samples = 50
Description: Calibration samples for underway chlorophyll from non toxic seawater supply
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of deployments = 27
Description: In-water optics rig: i) Fast Repetition Rate Fluorometer (phytoplankton physiology); ii) Satlantic UV sensor (downwelling spectral UV light at 305, 320, 340 and 380 nm); iii) Wetlabs ac-9 (attenuation and absorption at 9 wavelengths: 412, 440, 488, 510, 532, 555, 650, 676, 715 nm - decomposed into a(c) total and CDOM by using casts with and without supracap filters); iv) SeaBird SBE19+ CTD (temperature and salinity with depth for correction of the ac9); v) ancillary PAR measurements (determination of light levels in water column)
Dissolved organic matter (inc DOC)Quantity: number of experiments = 19
Description: Photo-oxidation experiments - DOC/N, amino acids
Dissolved organic matter (inc DOC)Quantity: number of stations = 28
Description: Vertical profiles - CDOM, fDOM
Dissolved organic matter (inc DOC)Quantity: number of stations = 28
Description: Vertical profiles - DOC/N, amino acids
Dissolved organic matter (inc DOC)Quantity: number of experiments = 19
Description: Photo-oxidation experiments - CDOM, fDOM
Biochemical measurements (eg lipids, amino acids)Quantity: number of stations = 47
Description: Ambient concentrations and turnover rates of urea and three amino acids - leucine, methionine, tyrosine - by total bacterioplankton were measured using isotopic dilution time-series incubations. Using the same seawater sample, additions of UV irradiated deep seawater were made and the response of the bacterioplankton community measured in terms of the change in rate of amino acid uptake.
PhytoplanktonQuantity: number of stations = 40
Description: Phytoplankton community growth and grazing rates
PhytoplanktonQuantity: number of stations = 16
Description: Vertical phytoplankton (10µm) net hauls (0-50m) for qualitative identification
PhytoplanktonQuantity: number of stations = 45
Description: Vertical profiles of phytoplankton, bacteria abundance from Niskin bottles on CTD casts, by flow cytometry
PhytoplanktonQuantity: number of stations = 37
Description: Vertical profiles of phytoplankton abundance from Niskin bottles on CTD casts. Seawater samples preserved with Lugol's iodine for post-cruise microscopic analysis of community structure/composition
ZooplanktonQuantity: number of stations = 37
Description: Vertical profiles of phytoplankton abundance from Niskin bottles on CTD casts. Seawater samples preserved with Lugol's iodine for post-cruise microscopic analysis of community structure/composition
ZooplanktonQuantity: number of stations = 10
Description: Vertical zooplankton (60µm and 700µm) net hauls (0-200m) for qualitative identification
Pelagic bacteria/micro-organismsQuantity: number of stations = 12
Description: Incubations to determine CH4 oxidation rates
Pelagic bacteria/micro-organismsQuantity: number of stations = 21
Description: Heterotrophic bacterial production, Particulate uptake of 14C labelled methanol, acetaldehyde and acetone, Total oxidation of 14C labelled methanol, acetone and acetaldehyde.
Pelagic bacteria/micro-organismsQuantity: number of stations = 45
Description: Vertical profiles of phytoplankton, bacteria abundance from Niskin bottles on CTD casts, by flow cytometry
Other biological/fisheries measurementQuantity: number of stations = 15
Description: Incubations for continuous measurements of O2 consumption using micro electrodes and in vivo respiratory electron transport system activity
Other biological/fisheries measurementQuantity: number of stations = 20
Description: Vertical profiles for gross primary production, community respiration and net community production (O2)
Meteorology 
Incident radiationQuantity: activity duration in days = 38
Description: Deck mounted (over the CTD winch cab) Trios UV sensor: i) Hyperspectral (2.5 nm resolution: 200-500 nm wavelength) UV at 5 minute intervals through daylight hours; ii) decomposed hyperspectral into broadband UV-A and UV-B
Other meteorological measurementsQuantity: activity duration in days = 36
Description: Microtops sunphotometer measurements: i) Aerosol optical thickness at 340, 440, 675 and 870 nm; ii) water vapour content (cm)
Other meteorological measurementsQuantity: activity duration in days = 15
Description: OVOC analysis
Moorings, landers, buoys 
Physical oceanography 
CTD stations19° 44' 31" N  18° 37' 57" W — Buoy deployment. Wire Walker.
CTD stations19° 37' 37" N  18° 37' 1" W — Buoy recovery. Wire Walker.
CTD stations19° 37' 14" N  18° 27' 6" W — Buoy deployment. Wire Walker.
CTD stations19° 24' 28" N  17° 49' 58" W — Buoy deployment. Wire Walker.
CTD stations21° 31' 9" N  17° 59' 21" W — Buoy deployment. Wire Walker.
CTD stations19° 35' 11" N  18° 20' 14" W — Buoy recovery. Wire Walker.
CTD stations19° 33' 56" N  18° 59' 21" W — Buoy deployment. Wire Walker.
CTD stations21° 36' 54" N  18° 3' 51" W — Buoy recovery. Wire Walker.
CTD stations19° 33' 14" N  18° 55' 30" W — Buoy recovery. Wire Walker.
CTD stations19° 52' 40" N  18° 8' 36" W — Buoy deployment. Wire Walker.
CTD stations19° 53' 3" N  18° 10' 47" W — Buoy recovery. Wire Walker.
CTD stations19° 26' 20" N  19° 9' 23" W — Buoy recovery. Wire Walker.
Subsurface temperature measurements21° 14' 33" N  17° 17' 23" W — Buoy deployment. Thermistor.
Subsurface temperature measurements20° 2' 7" N  18° 37' 13" W — Buoy recovery. Thermistor.
Subsurface temperature measurements20° 37' 5" N  18° 25' 39" W — Buoy recovery. Thermistor.
Subsurface temperature measurements20° 39' 25" N  18° 42' 2" W — Buoy recovery. Thermistor.
Subsurface temperature measurements20° 26' 57" N  18° 25' 39" W — Buoy deployment. Thermistor.
Subsurface temperature measurements21° 13' 15" N  17° 22' 51" W — Buoy deployment. Thermistor.
Current profiler (eg ADCP)21° 36' 3" N  18° 0' 21" W — Buoy deployment. ADCP.
Current profiler (eg ADCP)21° 40' 55" N  17° 56' 20" W — Buoy recovery. ADCP.
Current profiler (eg ADCP)19° 26' 24" N  19° 5' 54" W — Buoy recovery. ADCP.
Current profiler (eg ADCP)19° 39' 42" N  18° 42' 53" W — Buoy recovery. ADCP.
Current profiler (eg ADCP)19° 38' 31" N  18° 27' 12" W — Buoy deployment. ADCP.
Current profiler (eg ADCP)19° 24' 48" N  17° 55' 3" W — Buoy deployment. ADCP.
Current profiler (eg ADCP)19° 43' 35" N  18° 42' 34" W — Buoy deployment. ADCP.
Current profiler (eg ADCP)21° 39' 29" N  18° 39' 29" W — Buoy recovery. ADCP.
Current profiler (eg ADCP)21° 25' 15" N  17° 54' 43" W — Buoy deployment. ADCP.
Current profiler (eg ADCP)19° 35' 46" N  19° 20' 43" W — Buoy recovery. ADCP.
Data held at BODC Get data
Series/Profiles 
132  Bottle station
Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in 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
Quality control flags
Chlorophyll pigment concentrations in water bodies
Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in 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
Quality control flags
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
21256652009-05-19 05:10 19° 44' 24" N  18° 37' 40" W  View metadata report for BODC series reference number 2125665
19886162009-05-17 05:16 19° 35' 31" N  18° 17' 45" W  View metadata report for BODC series reference number 1988616
19886282009-05-18 05:12 19° 40' 31" N  18° 27' 58" W  View metadata report for BODC series reference number 1988628
21252842009-04-21 04:14 21° 29' 54" N  17° 14' 33" W  View metadata report for BODC series reference number 2125284
21253402009-04-24 13:07:30 20° 56' 16" N  17° 29' 47" W  View metadata report for BODC series reference number 2125340
21254072009-04-26 05:04:30 20° 41' 20" N  17° 47' 54" W  View metadata report for BODC series reference number 2125407
21254192009-04-26 13:04:30 20° 40' 51" N  17° 50' 38" W  View metadata report for BODC series reference number 2125419
21254322009-04-27 09:19 20° 37' 24" N  17° 56' 20" W  View metadata report for BODC series reference number 2125432
12479902009-04-19 08:38 21° 28' 49" N  19° 6' 39" W  View metadata report for BODC series reference number 1247990
12480772009-04-24 04:38 21° 0' 21" N  17° 28' 22" W  View metadata report for BODC series reference number 1248077
12481572009-04-26 09:21 20° 40' 2" N  17° 48' 57" W  View metadata report for BODC series reference number 1248157
12482492009-04-29 13:25 20° 38' 3" N  18° 33' 27" W  View metadata report for BODC series reference number 1248249
12482502009-04-30 03:47 20° 38' 7" N  18° 40' 24" W  View metadata report for BODC series reference number 1248250
12483052009-05-10 05:21 21° 37' 25" N  18° 2' 5" W  View metadata report for BODC series reference number 1248305
12483302009-05-12 18:48 19° 12' 51" N  19° 43' 34" W  View metadata report for BODC series reference number 1248330
12484582009-05-18 05:12 19° 40' 31" N  18° 27' 58" W  View metadata report for BODC series reference number 1248458
12485022009-05-19 09:13 19° 44' 33" N  18° 38' 51" W  View metadata report for BODC series reference number 1248502
12485752009-05-20 20:48 19° 41' 12" N  18° 53' 0" W  View metadata report for BODC series reference number 1248575
12485992009-05-21 09:40 19° 35' 1" N  18° 56' 8" W  View metadata report for BODC series reference number 1248599
12486312009-05-22 08:05 19° 29' 32" N  19° 8' 34" W  View metadata report for BODC series reference number 1248631
19885002009-04-29 04:44 20° 38' 42" N  18° 28' 7" W  View metadata report for BODC series reference number 1988500
19885362009-04-30 09:11 20° 35' 52" N  18° 42' 42" W  View metadata report for BODC series reference number 1988536
19885482009-05-08 05:20 21° 25' 29" N  17° 56' 8" W  View metadata report for BODC series reference number 1988548
19886772009-05-22 05:23 19° 30' 58" N  19° 6' 51" W  View metadata report for BODC series reference number 1988677
21253032009-04-23 04:38 21° 11' 44" N  17° 22' 6" W  View metadata report for BODC series reference number 2125303
21253882009-04-25 13:36:30 20° 49' 12" N  17° 41' 50" W  View metadata report for BODC series reference number 2125388
21255122009-05-09 05:17:30 21° 31' 0" N  17° 59' 36" W  View metadata report for BODC series reference number 2125512
21256282009-05-17 12:31 19° 36' 46" N  18° 21' 25" W  View metadata report for BODC series reference number 2125628
12480652009-04-23 12:58 21° 7' 38" N  17° 23' 48" W  View metadata report for BODC series reference number 1248065
12483172009-05-10 09:19 21° 36' 20" N  18° 0' 43" W  View metadata report for BODC series reference number 1248317
12484102009-05-16 12:36 19° 32' 34" N  18° 9' 20" W  View metadata report for BODC series reference number 1248410
12485262009-05-20 05:13 19° 41' 13" N  18° 46' 55" W  View metadata report for BODC series reference number 1248526
19886532009-05-20 05:13 19° 41' 13" N  18° 46' 55" W  View metadata report for BODC series reference number 1988653
21253152009-04-23 09:16:30 21° 9' 15" N  17° 22' 44" W  View metadata report for BODC series reference number 2125315
21253272009-04-24 04:38 21° 0' 21" N  17° 28' 22" W  View metadata report for BODC series reference number 2125327
21253522009-04-24 19:31:30 20° 54' 13" N  17° 33' 29" W  View metadata report for BODC series reference number 2125352
21254442009-04-27 13:05:30 20° 37' 17" N  17° 57' 43" W  View metadata report for BODC series reference number 2125444
21254562009-04-28 13:17 20° 42' 50" N  18° 18' 20" W  View metadata report for BODC series reference number 2125456
21255362009-05-10 05:20:30 21° 37' 25" N  18° 2' 5" W  View metadata report for BODC series reference number 2125536
21256532009-05-18 13:44:30 19° 43' 20" N  18° 26' 51" W  View metadata report for BODC series reference number 2125653
21256892009-05-20 05:13 19° 41' 13" N  18° 46' 55" W  View metadata report for BODC series reference number 2125689
21257572009-05-21 13:13 19° 34' 40" N  18° 58' 24" W  View metadata report for BODC series reference number 2125757
21257692009-05-22 05:22:30 19° 30' 58" N  19° 6' 51" W  View metadata report for BODC series reference number 2125769
12479892009-04-18 06:10 22° 11' 17" N  19° 8' 37" W  View metadata report for BODC series reference number 1247989
12480532009-04-23 09:17 21° 9' 15" N  17° 22' 44" W  View metadata report for BODC series reference number 1248053
12484342009-05-17 09:29 19° 36' 33" N  18° 18' 42" W  View metadata report for BODC series reference number 1248434
12485632009-05-20 16:49 19° 41' 1" N  18° 52' 12" W  View metadata report for BODC series reference number 1248563
19883882009-04-21 04:14 21° 29' 54" N  17° 14' 33" W  View metadata report for BODC series reference number 1988388
19884192009-04-23 04:38 21° 11' 44" N  17° 22' 6" W  View metadata report for BODC series reference number 1988419
19884682009-04-26 05:05 20° 41' 20" N  17° 47' 54" W  View metadata report for BODC series reference number 1988468
19886042009-05-16 05:11 19° 30' 52" N  18° 6' 21" W  View metadata report for BODC series reference number 1988604
19886412009-05-19 05:10 19° 44' 24" N  18° 37' 40" W  View metadata report for BODC series reference number 1988641
21253762009-04-25 11:35:30 20° 49' 22" N  17° 40' 57" W  View metadata report for BODC series reference number 2125376
21254682009-04-29 04:44 20° 38' 42" N  18° 28' 7" W  View metadata report for BODC series reference number 2125468
21255482009-05-10 12:35 21° 36' 30" N  18° 1' 58" W  View metadata report for BODC series reference number 2125548
21255972009-05-16 12:35:30 19° 32' 34" N  18° 9' 20" W  View metadata report for BODC series reference number 2125597
21256162009-05-17 05:15:30 19° 35' 31" N  18° 17' 45" W  View metadata report for BODC series reference number 2125616
21256902009-05-20 08:46:30 19° 40' 58" N  18° 48' 45" W  View metadata report for BODC series reference number 2125690
12480162009-04-21 04:14 21° 29' 54" N  17° 14' 33" W  View metadata report for BODC series reference number 1248016
12480282009-04-22 04:16 21° 25' 51" N  17° 15' 54" W  View metadata report for BODC series reference number 1248028
12480902009-04-24 13:08 20° 56' 16" N  17° 29' 47" W  View metadata report for BODC series reference number 1248090
12481212009-04-25 11:36 20° 49' 22" N  17° 40' 57" W  View metadata report for BODC series reference number 1248121
12482252009-04-29 04:44 20° 38' 42" N  18° 28' 7" W  View metadata report for BODC series reference number 1248225
12483292009-05-10 12:35 21° 36' 30" N  18° 1' 58" W  View metadata report for BODC series reference number 1248329
12483912009-05-16 05:11 19° 30' 52" N  18° 6' 21" W  View metadata report for BODC series reference number 1248391
12484712009-05-18 10:23 19° 43' 7" N  18° 26' 8" W  View metadata report for BODC series reference number 1248471
19884442009-04-24 09:19 20° 57' 50" N  17° 28' 47" W  View metadata report for BODC series reference number 1988444
19884932009-04-27 04:52 20° 39' 44" N  17° 54' 36" W  View metadata report for BODC series reference number 1988493
19885242009-04-30 04:50 20° 37' 59" N  18° 41' 2" W  View metadata report for BODC series reference number 1988524
19885852009-05-14 05:51 19° 52' 12" N  18° 10' 1" W  View metadata report for BODC series reference number 1988585
21252722009-04-20 04:22 21° 12' 17" N  18° 27' 44" W  View metadata report for BODC series reference number 2125272
21254932009-04-30 04:50 20° 37' 59" N  18° 41' 2" W  View metadata report for BODC series reference number 2125493
21257452009-05-21 05:15:30 19° 38' 5" N  18° 54' 24" W  View metadata report for BODC series reference number 2125745
21257702009-05-22 08:04:30 19° 29' 32" N  19° 8' 34" W  View metadata report for BODC series reference number 2125770
12480892009-04-24 09:19 20° 57' 50" N  17° 28' 47" W  View metadata report for BODC series reference number 1248089
12481452009-04-26 05:05 20° 41' 20" N  17° 47' 54" W  View metadata report for BODC series reference number 1248145
12481692009-04-26 13:05 20° 40' 51" N  17° 50' 38" W  View metadata report for BODC series reference number 1248169
12481822009-04-27 09:19 20° 37' 24" N  17° 56' 20" W  View metadata report for BODC series reference number 1248182
12483662009-05-15 09:23 19° 25' 42" N  17° 55' 52" W  View metadata report for BODC series reference number 1248366
21253392009-04-24 09:19 20° 57' 50" N  17° 28' 47" W  View metadata report for BODC series reference number 2125339
21253642009-04-25 04:58:30 20° 51' 48" N  17° 38' 7" W  View metadata report for BODC series reference number 2125364
21255732009-05-15 12:59 19° 26' 24" N  17° 57' 41" W  View metadata report for BODC series reference number 2125573
12480412009-04-23 04:38 21° 11' 44" N  17° 22' 6" W  View metadata report for BODC series reference number 1248041
12481702009-04-27 04:52 20° 39' 44" N  17° 54' 36" W  View metadata report for BODC series reference number 1248170
12482132009-04-28 13:17 20° 42' 50" N  18° 18' 20" W  View metadata report for BODC series reference number 1248213
12484092009-05-16 09:23 19° 32' 32" N  18° 8' 27" W  View metadata report for BODC series reference number 1248409
12484462009-05-17 12:31 19° 36' 46" N  18° 21' 25" W  View metadata report for BODC series reference number 1248446
12485382009-05-20 08:47 19° 40' 58" N  18° 48' 45" W  View metadata report for BODC series reference number 1248538
12486182009-05-22 05:23 19° 30' 58" N  19° 6' 51" W  View metadata report for BODC series reference number 1248618
19884562009-04-25 04:59 20° 51' 48" N  17° 38' 7" W  View metadata report for BODC series reference number 1988456
19884812009-04-26 09:21 20° 40' 2" N  17° 48' 57" W  View metadata report for BODC series reference number 1988481
19885972009-05-15 09:23 19° 25' 42" N  17° 55' 52" W  View metadata report for BODC series reference number 1988597
21254202009-04-27 04:52 20° 39' 44" N  17° 54' 36" W  View metadata report for BODC series reference number 2125420
21255002009-05-08 05:19:30 21° 25' 29" N  17° 56' 8" W  View metadata report for BODC series reference number 2125500
21255242009-05-09 12:59:30 21° 34' 18" N  18° 2' 45" W  View metadata report for BODC series reference number 2125524
21255612009-05-14 05:51 19° 52' 12" N  18° 10' 1" W  View metadata report for BODC series reference number 2125561
21255852009-05-16 05:11 19° 30' 52" N  18° 6' 21" W  View metadata report for BODC series reference number 2125585
21256042009-05-16 20:25 19° 35' 9" N  18° 12' 59" W  View metadata report for BODC series reference number 2125604
21256772009-05-19 12:34 19° 45' 1" N  18° 39' 22" W  View metadata report for BODC series reference number 2125677
21257082009-05-20 12:48:30 19° 40' 26" N  18° 50' 23" W  View metadata report for BODC series reference number 2125708
21257212009-05-20 16:49 19° 41' 1" N  18° 52' 12" W  View metadata report for BODC series reference number 2125721
21257332009-05-20 20:47:30 19° 41' 12" N  18° 53' 0" W  View metadata report for BODC series reference number 2125733
12483422009-05-13 15:34 19° 40' 28" N  18° 26' 58" W  View metadata report for BODC series reference number 1248342
12480042009-04-20 03:16 21° 12' 4" N  18° 27' 31" W  View metadata report for BODC series reference number 1248004
12481332009-04-25 13:37 20° 49' 12" N  17° 41' 50" W  View metadata report for BODC series reference number 1248133
12482012009-04-28 10:22 20° 43' 19" N  18° 15' 26" W  View metadata report for BODC series reference number 1248201
12483542009-05-14 05:51 19° 52' 12" N  18° 10' 1" W  View metadata report for BODC series reference number 1248354
12484222009-05-17 05:16 19° 35' 31" N  18° 17' 45" W  View metadata report for BODC series reference number 1248422
12484952009-05-19 05:10 19° 44' 24" N  18° 37' 40" W  View metadata report for BODC series reference number 1248495
12485872009-05-21 05:16 19° 38' 5" N  18° 54' 24" W  View metadata report for BODC series reference number 1248587
19884072009-04-22 04:16 21° 25' 51" N  17° 15' 54" W  View metadata report for BODC series reference number 1988407
12481082009-04-25 04:59 20° 51' 48" N  17° 38' 7" W  View metadata report for BODC series reference number 1248108
12481942009-04-27 13:06 20° 37' 17" N  17° 57' 43" W  View metadata report for BODC series reference number 1248194
12482372009-04-29 09:17 20° 37' 42" N  18° 31' 5" W  View metadata report for BODC series reference number 1248237
12482622009-05-08 05:20 21° 25' 29" N  17° 56' 8" W  View metadata report for BODC series reference number 1248262
12482742009-05-09 05:18 21° 31' 0" N  17° 59' 36" W  View metadata report for BODC series reference number 1248274
12482862009-05-09 09:20 21° 30' 40" N  18° 0' 8" W  View metadata report for BODC series reference number 1248286
12482982009-05-09 13:00 21° 34' 18" N  18° 2' 45" W  View metadata report for BODC series reference number 1248298
12483782009-05-15 12:59 19° 26' 24" N  17° 57' 41" W  View metadata report for BODC series reference number 1248378
12484832009-05-18 13:45 19° 43' 20" N  18° 26' 51" W  View metadata report for BODC series reference number 1248483
12485142009-05-19 12:34 19° 45' 1" N  18° 39' 22" W  View metadata report for BODC series reference number 1248514
12485512009-05-20 12:49 19° 40' 26" N  18° 50' 23" W  View metadata report for BODC series reference number 1248551
12486062009-05-21 13:13 19° 34' 40" N  18° 58' 24" W  View metadata report for BODC series reference number 1248606
19884202009-04-23 09:17 21° 9' 15" N  17° 22' 44" W  View metadata report for BODC series reference number 1988420
19884322009-04-24 04:38 21° 0' 21" N  17° 28' 22" W  View metadata report for BODC series reference number 1988432
19885612009-05-09 05:18 21° 31' 0" N  17° 59' 36" W  View metadata report for BODC series reference number 1988561
19885732009-05-10 05:21 21° 37' 25" N  18° 2' 5" W  View metadata report for BODC series reference number 1988573
19886652009-05-21 05:16 19° 38' 5" N  18° 54' 24" W  View metadata report for BODC series reference number 1988665
19885122009-04-29 09:17 20° 37' 42" N  18° 31' 5" W  View metadata report for BODC series reference number 1988512
21252962009-04-22 04:16 21° 25' 51" N  17° 15' 54" W  View metadata report for BODC series reference number 2125296
21254812009-04-29 13:24:30 20° 38' 3" N  18° 33' 27" W  View metadata report for BODC series reference number 2125481
21256412009-05-18 05:11:30 19° 40' 31" N  18° 27' 58" W  View metadata report for BODC series reference number 2125641
2  Pumped water sample
Horizontal spatial co-ordinates
Date and time
Nitrite concentration parameters in the water column
Phosphate concentration parameters in 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
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Date and time
Nitrite concentration parameters in the water column
Phosphate concentration parameters in 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
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
21213512009-04-17 15:00  — 2009-05-22 13:18 19° 21' 50" N  19° 47' 37" W — 22° 24' 25" N  17° 14' 36" W  View metadata report for BODC series reference number 2121351
13604222009-04-17 13:37  — 2009-05-13 19:32 18° 47' 22" N  19° 48' 44" W — 22° 8' 29" N  17° 8' 12" W  View metadata report for BODC series reference number 1360422
Discrete samples 
897  All plastic clean surface pumped supplyOrganosulphur and organoselenium species concentration parameters in water bodies
Nitrite concentration parameters in the water column
Phytoplankton taxonomic abundance in water bodies
Phosphate concentration parameters in the water column
Silicate concentration parameters in the water column
Bacteria generic abundance in water bodies
Ammonium and ammonia concentration parameters in water bodies
Bacteria taxonomic abundance in water bodies
Phytoplankton generic abundance in water bodies
Nitrate concentration parameters in the water column
102  CTD frame plus rosette samplerTransmittance and attenuance of the water column
Organosulphur and organoselenium species concentration parameters in water bodies
Nitrite concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Phytoplankton taxonomic abundance in water bodies
Phosphate concentration parameters in the water column
Salinity of 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
Surfactant concentrations in water bodies
Density of the water column
Ammonium and ammonia concentration parameters in water bodies
Bacteria taxonomic abundance in water bodies
Raw oxygen sensor output
Phytoplankton generic abundance in water bodies
Raw suspended particulate material concentration sensor output
Microzooplankton generic abundance in water bodies
Nitrate concentration parameters in the water column
Dissolved concentration parameters for other gases in the water column
Carbon monoxide and dioxide concentrations in the atmosphere
Chlorophyll pigment concentrations in water bodies
98  Sample taken from ship's non-toxic supplySalinity of the water column
Chlorophyll pigment concentrations in water bodies
11  Surfactant concentrations in water bodies