Resources

RRS James Clark Ross JR19960916 (AMT3, JR15)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR19960916 (AMT3, JR15)
Cruise period1996-09-16 — 1996-10-25
StatusCompleted
Port of departureGrimsby, United Kingdom
Port of returnStanley, Falkland Islands (Malvinas)
ObjectivesThe Atlantic Meridional Transects (AMTs) were conceived as a means of acquiring a time series of oceanographic, biological, chemical and optical data over large latitudinal ranges (50° N to 50° S) and through a number of contrasting oceanographic provinces. The core scientific objectives are to refine out understanding of the role of the ocean biota in the biogeochemical processes, carbon fluxes and ultimately global climate and to develop remotely-sensed measurements of global primary production.

The AMTs take advantage of the twice yearly passage of the NERC vessel, RRS James Clark Ross, operated by the British Antarctic Survey, during its passage to and from Antarctica each year. Since the only ship costs involved are to cover the additional time required for course deviations and station work, the AMT is a highly cost-effective project for fundamental marine science. AMT-3 is the third Atlantic transect in the current series.

Aims:
1. To improve our undestanding of the relationship between physical processes and biological production.
2. Identify, define and quantify latitudinal changes in biogeochemical provinces.
3. Determine phytoplankton characteristics and photosynthetic parameters.
4. Identify nutrient regimes and their role in biogeochemical cycles.
5. Characterise plankton community structure, including the accurate determination of carbon values
6. Relate the partial pressure of CO2 (pCO2) in surface waters with the biological production
7. Acquire data for the calibration of remotely sensed obersvations (primary validation).
Chief scientistTony Bale (Plymouth Marine Laboratory)
ProjectAMT
Cruise reportRRS James Clark Ross JR19960916 (AMT3, JR15) cruise report jr_amt3.pdf (3.46 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
South Atlantic Ocean
Track chartsRRS James Clark Ross JR19960916 (AMT3, JR15) cruise track — jr_amt3track.pdf (0.02 MB) 
Measurements 
Physical oceanography 
BathythermographDescription: XBT's were deployed and temperatute profiles were obtained upto depths of 1830m. No. of deployments not noted.
Water bottle stationsQuantity: number of stations = 30
Description: A number of stations were sampled. CTD/rosette deployments were made. Water bottle samples were taken. Vericle hauls were taken for zooplankton samples. Sea and sky photographs were taken.
CTD stationsQuantity: number of stations = 30
Description: A number of stations were sampled. CTD/rosette deployments were made. Water bottle samples were taken. Vericle hauls were taken for zooplankton samples. Sea and sky photographs were taken.
Subsurface temperature and salinity measurementsDescription: Underway measurements were made. Salinity, temperature and fluroescence were recorded. Meteorological data was also logged. No. of measurements not noted.
Subsurface temperature and salinity measurementsDescription: Salinity and temperature calibrations recorded. No. of samples not noted.
Optics (eg underwater light levels)Description: Ocean colour optical data was gathered. No. of samples not noted.
Contamination 
Suspended matterQuantity: number of samples = 1
Description: Particulates and zooplankton samples were taken. No. of samples not taken.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Description: Chlorophyll samples were also taken. No. of samples not noted
ZooplanktonQuantity: number of stations = 30
Description: A number of stations were sampled. CTD/rosette deployments were made. Water bottle samples were taken. Vericle hauls were taken for zooplankton samples. Sea and sky photographs were taken.
ZooplanktonQuantity: number of samples = 1
Description: Particulates and zooplankton samples were taken. No. of samples not taken.
Data held at BODC Get data
Series/Profiles 
25  Bottle station
Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags
Reference numbers
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags

BODC idDate/TimeLocationDoc.
10939221996-09-26 11:51 38° 10' 9" N  20° 0' 50" W  View metadata report for BODC series reference number 1093922
10937741996-10-12 12:14 26° 36' 56" S  39° 36' 2" W  View metadata report for BODC series reference number 1093774
10938291996-09-25 11:45 42° 54' 10" N  19° 59' 31" W  View metadata report for BODC series reference number 1093829
10939461996-09-29 11:44 24° 40' 42" N  21° 24' 14" W  View metadata report for BODC series reference number 1093946
10938661996-10-07 11:15 6° 28' 56" S  29° 16' 15" W  View metadata report for BODC series reference number 1093866
10938781996-10-10 12:16 18° 51' 43" S  35° 2' 49" W  View metadata report for BODC series reference number 1093878
10938171996-09-24 10:52 47° 21' 54" N  18° 12' 19" W  View metadata report for BODC series reference number 1093817
10938301996-10-23 13:26 43° 34' 38" S  55° 0' 13" W  View metadata report for BODC series reference number 1093830
10938911996-10-25 11:16 51° 55' 52" S  57° 53' 41" W  View metadata report for BODC series reference number 1093891
10937861996-10-24 13:18 48° 0' 12" S  55° 52' 36" W  View metadata report for BODC series reference number 1093786
10940101996-10-08 12:12 10° 46' 37" S  31° 14' 35" W  View metadata report for BODC series reference number 1094010
10938421996-09-22 08:37 49° 40' 47" N  5° 41' 35" W  View metadata report for BODC series reference number 1093842
10939711996-10-02 11:18 12° 45' 44" N  20° 32' 26" W  View metadata report for BODC series reference number 1093971
10937981996-10-13 12:14 29° 51' 12" S  42° 54' 49" W  View metadata report for BODC series reference number 1093798
10939101996-10-15 12:58 35° 42' 46" S  49° 35' 12" W  View metadata report for BODC series reference number 1093910
10939581996-09-30 15:06 20° 5' 9" N  20° 38' 2" W  View metadata report for BODC series reference number 1093958
10940091996-10-06 11:13 2° 23' 6" S  27° 27' 17" W  View metadata report for BODC series reference number 1094009
10937621996-10-11 12:34 22° 55' 24" S  36° 57' 24" W  View metadata report for BODC series reference number 1093762
10939091996-10-14 12:15 32° 47' 51" S  46° 7' 4" W  View metadata report for BODC series reference number 1093909
10937501996-10-09 12:34 14° 53' 44" S  33° 7' 25" W  View metadata report for BODC series reference number 1093750
10938051996-10-16 12:10 37° 48' 29" S  52° 11' 34" W  View metadata report for BODC series reference number 1093805
10938541996-10-04 11:17 5° 10' 20" N  24° 0' 56" W  View metadata report for BODC series reference number 1093854
10939341996-09-28 11:50 29° 29' 49" N  21° 48' 30" W  View metadata report for BODC series reference number 1093934
10939831996-10-03 11:14 9° 3' 13" N  22° 16' 33" W  View metadata report for BODC series reference number 1093983
10939951996-10-05 11:14 1° 17' 35" N  25° 46' 50" W  View metadata report for BODC series reference number 1093995
49  CTD/STD cast
Temperature of the water column
Vertical spatial coordinates
Salinity of the water column
Density of the water column
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
Temperature of the water column
Vertical spatial coordinates
Salinity of the water column
Density of the water column
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
10720381996-10-14 12:58 32° 47' 27" S  46° 7' 1" W  View metadata report for BODC series reference number 1072038
10722841996-10-03 11:02 9° 3' 13" N  22° 16' 33" W  View metadata report for BODC series reference number 1072284
10723151996-10-04 11:52 5° 10' 34" N  24° 0' 49" W  View metadata report for BODC series reference number 1072315
10724201996-10-09 13:13 14° 53' 21" S  33° 7' 16" W  View metadata report for BODC series reference number 1072420
10724811996-10-12 12:01 26° 36' 56" S  39° 36' 2" W  View metadata report for BODC series reference number 1072481
10721551996-09-26 11:38 38° 10' 9" N  20° 0' 51" W  View metadata report for BODC series reference number 1072155
10722231996-09-29 11:31 24° 40' 41" N  21° 24' 14" W  View metadata report for BODC series reference number 1072223
10722471996-09-30 14:52 20° 5' 9" N  20° 38' 2" W  View metadata report for BODC series reference number 1072247
10723391996-10-05 11:49 1° 18' 24" N  25° 46' 32" W  View metadata report for BODC series reference number 1072339
10723401996-10-06 11:02 2° 23' 6" S  27° 27' 16" W  View metadata report for BODC series reference number 1072340
10723521996-10-06 11:51 2° 22' 18" S  27° 27' 10" W  View metadata report for BODC series reference number 1072352
10723761996-10-07 11:55 6° 28' 38" S  29° 16' 10" W  View metadata report for BODC series reference number 1072376
10724071996-10-08 12:51 10° 46' 6" S  31° 14' 50" W  View metadata report for BODC series reference number 1072407
10724321996-10-10 12:04 18° 51' 43" S  35° 2' 49" W  View metadata report for BODC series reference number 1072432
10719871996-10-24 14:02 48° 0' 13" S  55° 52' 19" W  View metadata report for BODC series reference number 1071987
10720141996-10-13 12:55 29° 51' 36" S  42° 55' 0" W  View metadata report for BODC series reference number 1072014
10720511996-10-15 12:44 35° 42' 46" S  49° 35' 12" W  View metadata report for BODC series reference number 1072051
10722721996-10-02 12:01 12° 45' 57" N  20° 32' 10" W  View metadata report for BODC series reference number 1072272
10722961996-10-03 11:52 9° 3' 43" N  22° 16' 38" W  View metadata report for BODC series reference number 1072296
10719511996-10-23 13:11 43° 34' 38" S  55° 0' 13" W  View metadata report for BODC series reference number 1071951
10721431996-09-25 11:34 42° 54' 10" N  19° 59' 31" W  View metadata report for BODC series reference number 1072143
10723031996-10-04 11:05 5° 10' 20" N  24° 0' 56" W  View metadata report for BODC series reference number 1072303
10723881996-10-08 12:00 10° 46' 37" S  31° 14' 35" W  View metadata report for BODC series reference number 1072388
10724561996-10-11 12:21 22° 55' 24" S  36° 57' 24" W  View metadata report for BODC series reference number 1072456
10719751996-10-24 13:06 48° 0' 12" S  55° 52' 36" W  View metadata report for BODC series reference number 1071975
10720021996-10-13 12:01 29° 51' 13" S  42° 54' 49" W  View metadata report for BODC series reference number 1072002
10720631996-10-15 13:39 35° 42' 57" S  49° 37' 18" W  View metadata report for BODC series reference number 1072063
10721061996-09-24 10:39 47° 21' 54" N  18° 12' 19" W  View metadata report for BODC series reference number 1072106
10722591996-09-30 15:52 20° 5' 10" N  20° 38' 52" W  View metadata report for BODC series reference number 1072259
10720261996-10-14 12:02 32° 47' 51" S  46° 7' 4" W  View metadata report for BODC series reference number 1072026
10720871996-10-16 12:53 37° 48' 47" S  52° 11' 21" W  View metadata report for BODC series reference number 1072087
10721791996-09-27 11:29 34° 1' 46" N  21° 15' 25" W  View metadata report for BODC series reference number 1072179
10722111996-09-28 12:32 29° 29' 58" N  21° 48' 37" W  View metadata report for BODC series reference number 1072211
10722351996-09-29 12:36 24° 41' 1" N  21° 24' 27" W  View metadata report for BODC series reference number 1072235
10724441996-10-10 12:56 18° 51' 22" S  35° 2' 55" W  View metadata report for BODC series reference number 1072444
10719631996-10-23 14:08 43° 34' 7" S  55° 0' 0" W  View metadata report for BODC series reference number 1071963
10719991996-10-25 11:08 51° 55' 52" S  57° 53' 41" W  View metadata report for BODC series reference number 1071999
10720991996-10-12 12:55 26° 36' 56" S  39° 35' 58" W  View metadata report for BODC series reference number 1072099
10721671996-09-26 12:40 38° 10' 17" N  20° 0' 55" W  View metadata report for BODC series reference number 1072167
10721801996-09-27 12:36 34° 2' 11" N  21° 15' 27" W  View metadata report for BODC series reference number 1072180
10721921996-09-28 11:42 29° 29' 49" N  21° 48' 31" W  View metadata report for BODC series reference number 1072192
10722601996-10-02 11:05 12° 45' 44" N  20° 32' 26" W  View metadata report for BODC series reference number 1072260
10723271996-10-05 11:02 1° 17' 35" N  25° 46' 50" W  View metadata report for BODC series reference number 1072327
10723641996-10-07 11:03 6° 28' 56" S  29° 16' 14" W  View metadata report for BODC series reference number 1072364
10724191996-10-09 12:21 14° 53' 44" S  33° 7' 25" W  View metadata report for BODC series reference number 1072419
10724681996-10-11 13:14 22° 54' 38" S  36° 57' 43" W  View metadata report for BODC series reference number 1072468
10720751996-10-16 11:56 37° 48' 29" S  52° 11' 34" W  View metadata report for BODC series reference number 1072075
10721311996-09-25 10:39 42° 54' 1" N  19° 59' 29" W  View metadata report for BODC series reference number 1072131
10721181996-09-24 11:46 47° 21' 22" N  18° 11' 2" W  View metadata report for BODC series reference number 1072118
1  Meteorological data logger
Horizontal spatial co-ordinates
Air pressure
Visible waveband radiance and irradiance measurements in the atmosphere
Date and time
Air temperature
Wind strength and direction
Solar Radiation
Horizontal spatial co-ordinates
Air pressure
Visible waveband radiance and irradiance measurements in the atmosphere
Date and time
Air temperature
Wind strength and direction
Solar Radiation

BODC idDate/TimeLocationDoc.
12228181996-09-21 12:16  — 1996-10-25 13:20 50° 47' 57" N  1° 7' 9" W — 51° 56' 1" S  58° 28' 52" W  View metadata report for BODC series reference number 1222818
1  Multiple instrument types
Horizontal spatial co-ordinates
Date and time
Salinity of the water column
Temperature of the water column
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Date and time
Salinity of the water column
Temperature of the water column
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
12228311996-09-21 12:16  — 1996-10-25 13:20 50° 47' 57" N  1° 7' 9" W — 51° 56' 1" S  58° 28' 52" W  View metadata report for BODC series reference number 1222831
1  Pumped water sample
Horizontal spatial co-ordinates
Date and time
Chlorophyll pigment concentrations in water bodies
Horizontal spatial co-ordinates
Date and time
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
16871971996-09-22 07:00  — 1996-10-25 11:00 51° 55' 57" S  57° 53' 42" W — 49° 43' 44" N  5° 21' 6" W  View metadata report for BODC series reference number 1687197
1  Single-beam echosounder
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation

BODC idDate/TimeLocationDoc.
12228061996-09-21 12:16  — 1996-10-25 13:20 50° 47' 57" N  1° 7' 9" W — 51° 56' 1" S  58° 28' 52" W  View metadata report for BODC series reference number 1222806
Discrete samples 
50  CTD frame plus rosette samplerReference numbers
Carotenoid and flavenoid pigment concentrations in water bodies
Particulate total and organic nitrogen concentrations in the water column
Nitrite concentration parameters in the water column
Temperature of the water column
Total metal concentrations in water bodies
Phytoplankton taxonomic abundance in water bodies
Phosphate concentration parameters in the water column
Salinity of the water column
Bacteria non taxonomy-related biomass expressed as carbon per unit volume of the water column
Phytoplankton taxonomic biomass in water bodies
Silicate concentration parameters in the water column
Bacteria generic abundance in water bodies
Density of the water column
Plankton biomass expressed as carbon per unit volume of the water column
Plankton abundance per unit volume of the water column
Metadata parameters
Raw fluorometer output
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Particulate total and organic carbon concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Dissolved metal concentrations in the water column
Primary production in the water column
117  Expendable BathythermographTemperature of the water column
333  Sample taken from ship's non-toxic supplyCarotenoid and flavenoid pigment concentrations in water bodies
Total metal concentrations in water bodies
Phaeopigment concentrations in the water column
Chlorophyll pigment concentrations in water bodies
Dissolved metal concentrations in the water column
98  WP-2 zooplankton net
53  Wetlabs 9 channel transmissometer