Cruise inventory

RRS Discovery D223A

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD223A
Cruise period1996-09-28 — 1996-10-21
StatusCompleted
Port of departureFalmouth, United Kingdom
Port of returnReykjavík, Iceland
PurposeResearch
Objectives1. To determine the current status of the circulation, water mass distribution and eddy activity in the northern North Atlantic, including a repeat of the VIVALDI CTD and SeaSoar grid surveyed in 1991.
2. Undertake CTD sections through the Rockall Trough (Ellett Line), Lousy Bank and Iceland (Extended Ellett Line)
3. Assess the primary productivity in the region and the measurement of surface fluxes of heat and fresh water.
Chief scientistHarry Leach (University of Liverpool Department of Earth Sciences)
Coordinating bodyWOCE
Cruise reportRRS Discovery D223A cruise report d223.pdf — access key 'C' (9.33 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificRockall Trough, Lousy Bank, Iceland Basin
Track chartsRRS Discovery D223A cruise track — d223trk.pdf (0.11 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 60
Description: CTD vertical profiles
Subsurface temperature and salinity measurementsQuantity: track kilometres = 2069
Description: Seasoar surveying to 400m
Optics (eg underwater light levels)Quantity: track kilometres = 2069
Description: Seasoar surveying to 400m
Geochemical tracers (eg freons)Quantity: number of stations = 41
Description: freons
Current profiler (eg ADCP)Quantity: activity duration in days = 24
Description: Underway current profiling
Chemical oceanography 
OxygenQuantity: number of stations = 60
Description: CTD - bottle samples
PhosphateQuantity: activity duration in days = 24
Description: Discrete samples from non-toxic supply, hourly nutrients n(NO2, NO3, Si, PO4)
PhosphateQuantity: number of stations = 60
Description: CTD - bottle samples
NitrateQuantity: activity duration in days = 24
Description: Discrete samples from non-toxic supply, hourly nutrients n(NO2, NO3, Si, PO4)
NitrateQuantity: number of stations = 60
Description: CTD - bottle samples
SilicateQuantity: number of stations = 60
Description: CTD - bottle samples
SilicateQuantity: activity duration in days = 24
Description: Discrete samples from non-toxic supply, hourly nutrients n(NO2, NO3, Si, PO4)
IsotopesQuantity: number of stations = 60
Description: CTD - bottle samples
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: track kilometres = 2069
Description: Seasoar surveying to 400m
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 24
Description: Simrad EA500 echo-sounder data
Data held at BODC 
Series/Profiles 
54  Bottle station
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers
Quality control flags
Silicate concentration parameters in the water column
Vertical spatial coordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Reference numbers

BODC idDate/TimeLocationDoc.
12630251996-10-05 04:03 58° 43' 32" N  13° 49' 33" W  View metadata report for BODC series reference number 1263025
12630371996-10-05 07:30 58° 55' 37" N  13° 50' 40" W  View metadata report for BODC series reference number 1263037
12630491996-10-05 10:42 59° 12' 52" N  13° 39' 43" W  View metadata report for BODC series reference number 1263049
12630501996-10-05 13:29 59° 24' 39" N  13° 30' 11" W  View metadata report for BODC series reference number 1263050
12630621996-10-05 16:16 59° 35' 9" N  13° 23' 19" W  View metadata report for BODC series reference number 1263062
12630741996-10-05 18:53 59° 45' 14" N  13° 14' 17" W  View metadata report for BODC series reference number 1263074
12630861996-10-05 21:09 59° 54' 58" N  13° 7' 46" W  View metadata report for BODC series reference number 1263086
12630981996-10-05 23:28 60° 5' 59" N  12° 56' 51" W  View metadata report for BODC series reference number 1263098
12631051996-10-06 01:57 60° 16' 58" N  12° 51' 12" W  View metadata report for BODC series reference number 1263105
12631171996-10-06 04:32 60° 28' 56" N  12° 42' 2" W  View metadata report for BODC series reference number 1263117
12631291996-10-06 07:18 60° 33' 35" N  12° 52' 53" W  View metadata report for BODC series reference number 1263129
12631301996-10-06 09:29 60° 39' 0" N  13° 3' 6" W  View metadata report for BODC series reference number 1263130
12631421996-10-06 14:56 60° 44' 24" N  13° 12' 52" W  View metadata report for BODC series reference number 1263142
12631541996-10-06 18:10 60° 50' 39" N  13° 25' 21" W  View metadata report for BODC series reference number 1263154
12631661996-10-10 01:52 60° 54' 24" N  13° 34' 53" W  View metadata report for BODC series reference number 1263166
12631781996-10-10 08:18 61° 23' 19" N  14° 34' 54" W  View metadata report for BODC series reference number 1263178
12631911996-10-10 14:37 61° 49' 12" N  15° 35' 26" W  View metadata report for BODC series reference number 1263191
12632091996-10-10 20:04 62° 17' 50" N  16° 18' 36" W  View metadata report for BODC series reference number 1263209
12632101996-10-11 00:39 62° 40' 49" N  16° 48' 8" W  View metadata report for BODC series reference number 1263210
12632221996-10-11 03:43 62° 54' 7" N  17° 1' 11" W  View metadata report for BODC series reference number 1263222
12632341996-10-11 06:23 63° 6' 22" N  17° 15' 1" W  View metadata report for BODC series reference number 1263234
12632461996-10-11 08:08 63° 11' 55" N  17° 21' 52" W  View metadata report for BODC series reference number 1263246
12632581996-10-14 17:05 60° 10' 25" N  19° 50' 32" W  View metadata report for BODC series reference number 1263258
12632711996-10-16 08:34 56° 59' 56" N  22° 39' 42" W  View metadata report for BODC series reference number 1263271
12632831996-10-17 18:17 60° 17' 14" N  26° 13' 56" W  View metadata report for BODC series reference number 1263283
12632951996-10-18 14:47 61° 38' 10" N  29° 59' 59" W  View metadata report for BODC series reference number 1263295
12633021996-10-19 03:52 62° 16' 56" N  32° 12' 57" W  View metadata report for BODC series reference number 1263302
12633141996-10-20 04:10 63° 23' 2" N  26° 22' 52" W  View metadata report for BODC series reference number 1263314
12627531996-09-30 12:38 56° 47' 4" N  8° 0' 26" W  View metadata report for BODC series reference number 1262753
12627651996-09-30 14:27 56° 50' 11" N  8° 20' 14" W  View metadata report for BODC series reference number 1262765
12627771996-09-30 15:47 56° 53' 3" N  8° 30' 14" W  View metadata report for BODC series reference number 1262777
12627891996-09-30 17:27 56° 57' 10" N  8° 46' 52" W  View metadata report for BODC series reference number 1262789
12627901996-09-30 18:48 57° 0' 2" N  8° 59' 47" W  View metadata report for BODC series reference number 1262790
12628081996-09-30 20:21 57° 3' 13" N  9° 12' 46" W  View metadata report for BODC series reference number 1262808
12628211996-10-01 02:08 57° 7' 19" N  9° 26' 43" W  View metadata report for BODC series reference number 1262821
12628331996-10-01 05:29 57° 8' 27" N  9° 41' 20" W  View metadata report for BODC series reference number 1262833
12628451996-10-01 09:24 57° 13' 39" N  10° 4' 25" W  View metadata report for BODC series reference number 1262845
12628571996-10-01 12:51 57° 18' 19" N  10° 22' 32" W  View metadata report for BODC series reference number 1262857
12628691996-10-01 16:09 57° 21' 33" N  10° 39' 22" W  View metadata report for BODC series reference number 1262869
12628701996-10-01 18:34 57° 23' 48" N  10° 51' 49" W  View metadata report for BODC series reference number 1262870
12628821996-10-02 01:57 57° 26' 59" N  11° 5' 50" W  View metadata report for BODC series reference number 1262882
12628941996-10-02 04:00 57° 28' 21" N  11° 18' 56" W  View metadata report for BODC series reference number 1262894
12629011996-10-02 06:30 57° 29' 28" N  11° 31' 15" W  View metadata report for BODC series reference number 1262901
12629131996-10-02 09:32 57° 29' 36" N  11° 49' 43" W  View metadata report for BODC series reference number 1262913
12629251996-10-02 12:53 57° 31' 7" N  12° 14' 54" W  View metadata report for BODC series reference number 1262925
12629371996-10-02 16:40 57° 31' 50" N  12° 36' 59" W  View metadata report for BODC series reference number 1262937
12629491996-10-02 19:13 57° 32' 28" N  12° 52' 6" W  View metadata report for BODC series reference number 1262949
12629501996-10-02 21:04 57° 32' 58" N  13° 0' 32" W  View metadata report for BODC series reference number 1262950
12629621996-10-02 22:57 57° 34' 6" N  13° 20' 15" W  View metadata report for BODC series reference number 1262962
12629741996-10-03 00:31 57° 34' 4" N  13° 38' 7" W  View metadata report for BODC series reference number 1262974
12629861996-10-03 03:32 57° 58' 4" N  13° 45' 1" W  View metadata report for BODC series reference number 1262986
12629981996-10-03 06:00 58° 12' 5" N  13° 45' 30" W  View metadata report for BODC series reference number 1262998
12630011996-10-03 09:01 58° 22' 46" N  13° 47' 11" W  View metadata report for BODC series reference number 1263001
12630131996-10-05 00:24 58° 34' 18" N  13° 48' 39" W  View metadata report for BODC series reference number 1263013
57  CTD/STD cast
Density of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Density of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
10145271996-09-30 12:26 56° 47' 4" N  8° 0' 26" W  View metadata report for BODC series reference number 1014527
10145391996-09-30 14:10 56° 50' 11" N  8° 20' 15" W  View metadata report for BODC series reference number 1014539
10145401996-09-30 15:33 56° 53' 3" N  8° 30' 13" W  View metadata report for BODC series reference number 1014540
10145521996-09-30 17:14 56° 57' 10" N  8° 46' 52" W  View metadata report for BODC series reference number 1014552
10145641996-09-30 18:33 57° 0' 2" N  8° 59' 47" W  View metadata report for BODC series reference number 1014564
10145761996-09-30 19:57 57° 3' 13" N  9° 12' 46" W  View metadata report for BODC series reference number 1014576
10145881996-10-01 01:02 57° 7' 19" N  9° 26' 43" W  View metadata report for BODC series reference number 1014588
10146071996-10-01 04:24 57° 8' 28" N  9° 41' 20" W  View metadata report for BODC series reference number 1014607
10146191996-10-01 08:13 57° 13' 40" N  10° 4' 25" W  View metadata report for BODC series reference number 1014619
10146201996-10-01 11:41 57° 18' 19" N  10° 22' 32" W  View metadata report for BODC series reference number 1014620
10145031996-09-29 12:26 54° 16' 41" N  5° 6' 10" W  View metadata report for BODC series reference number 1014503
10145151996-09-29 13:15 54° 16' 55" N  5° 6' 40" W  View metadata report for BODC series reference number 1014515
10146321996-10-01 15:12 57° 21' 33" N  10° 39' 22" W  View metadata report for BODC series reference number 1014632
10146441996-10-01 18:01 57° 23' 48" N  10° 51' 49" W  View metadata report for BODC series reference number 1014644
10146561996-10-02 01:21 57° 26' 59" N  11° 5' 50" W  View metadata report for BODC series reference number 1014656
10146681996-10-02 03:23 57° 28' 21" N  11° 18' 56" W  View metadata report for BODC series reference number 1014668
10146811996-10-02 05:33 57° 29' 28" N  11° 31' 14" W  View metadata report for BODC series reference number 1014681
10146931996-10-02 08:43 57° 29' 35" N  11° 49' 43" W  View metadata report for BODC series reference number 1014693
10147001996-10-02 11:56 57° 31' 7" N  12° 14' 53" W  View metadata report for BODC series reference number 1014700
10147121996-10-02 15:52 57° 31' 50" N  12° 37' 0" W  View metadata report for BODC series reference number 1014712
10147241996-10-02 18:36 57° 32' 28" N  12° 52' 5" W  View metadata report for BODC series reference number 1014724
10147361996-10-02 20:47 57° 32' 58" N  13° 0' 32" W  View metadata report for BODC series reference number 1014736
10147481996-10-02 22:42 57° 34' 6" N  13° 20' 15" W  View metadata report for BODC series reference number 1014748
10147611996-10-03 00:17 57° 34' 4" N  13° 38' 7" W  View metadata report for BODC series reference number 1014761
10147731996-10-03 03:20 57° 58' 4" N  13° 45' 1" W  View metadata report for BODC series reference number 1014773
10147851996-10-03 05:44 58° 12' 5" N  13° 45' 30" W  View metadata report for BODC series reference number 1014785
10147971996-10-03 08:14 58° 22' 46" N  13° 47' 12" W  View metadata report for BODC series reference number 1014797
10148041996-10-04 23:42 58° 34' 18" N  13° 48' 39" W  View metadata report for BODC series reference number 1014804
10148161996-10-05 03:23 58° 43' 32" N  13° 49' 34" W  View metadata report for BODC series reference number 1014816
10148281996-10-05 07:08 58° 55' 37" N  13° 50' 40" W  View metadata report for BODC series reference number 1014828
10148411996-10-05 10:05 59° 12' 52" N  13° 39' 43" W  View metadata report for BODC series reference number 1014841
10148531996-10-05 12:40 59° 24' 39" N  13° 30' 11" W  View metadata report for BODC series reference number 1014853
10148651996-10-05 15:22 59° 35' 9" N  13° 23' 19" W  View metadata report for BODC series reference number 1014865
10148771996-10-05 18:17 59° 45' 14" N  13° 14' 17" W  View metadata report for BODC series reference number 1014877
10148891996-10-05 20:37 59° 54' 58" N  13° 7' 46" W  View metadata report for BODC series reference number 1014889
10148901996-10-05 23:02 60° 5' 59" N  12° 56' 51" W  View metadata report for BODC series reference number 1014890
10149081996-10-06 01:33 60° 16' 58" N  12° 51' 13" W  View metadata report for BODC series reference number 1014908
10149211996-10-06 04:10 60° 28' 57" N  12° 42' 2" W  View metadata report for BODC series reference number 1014921
10149331996-10-06 06:47 60° 33' 35" N  12° 52' 53" W  View metadata report for BODC series reference number 1014933
10149451996-10-06 08:47 60° 39' 0" N  13° 3' 6" W  View metadata report for BODC series reference number 1014945
10149571996-10-06 14:10 60° 44' 24" N  13° 12' 52" W  View metadata report for BODC series reference number 1014957
10149691996-10-06 17:17 60° 50' 40" N  13° 25' 21" W  View metadata report for BODC series reference number 1014969
10149701996-10-10 00:55 60° 54' 24" N  13° 34' 53" W  View metadata report for BODC series reference number 1014970
10149821996-10-10 07:19 61° 23' 19" N  14° 34' 55" W  View metadata report for BODC series reference number 1014982
10149941996-10-10 13:35 61° 49' 12" N  15° 35' 26" W  View metadata report for BODC series reference number 1014994
10150081996-10-10 19:08 62° 17' 50" N  16° 18' 36" W  View metadata report for BODC series reference number 1015008
10150211996-10-10 23:54 62° 40' 49" N  16° 48' 8" W  View metadata report for BODC series reference number 1015021
10150331996-10-11 03:03 62° 54' 7" N  17° 1' 11" W  View metadata report for BODC series reference number 1015033
10150451996-10-11 05:56 63° 6' 22" N  17° 15' 1" W  View metadata report for BODC series reference number 1015045
10150571996-10-11 07:44 63° 11' 55" N  17° 21' 52" W  View metadata report for BODC series reference number 1015057
10150691996-10-14 16:04 60° 10' 25" N  19° 50' 33" W  View metadata report for BODC series reference number 1015069
10150701996-10-16 07:18 56° 59' 55" N  22° 39' 42" W  View metadata report for BODC series reference number 1015070
10150821996-10-17 17:27 60° 17' 15" N  26° 13' 56" W  View metadata report for BODC series reference number 1015082
10150941996-10-18 14:00 61° 38' 10" N  29° 59' 58" W  View metadata report for BODC series reference number 1015094
10151011996-10-19 02:49 62° 16' 56" N  32° 12' 58" W  View metadata report for BODC series reference number 1015101
10151131996-10-20 03:37 63° 23' 2" N  26° 22' 52" W  View metadata report for BODC series reference number 1015113
10151251996-10-20 08:47 63° 12' 54" N  27° 16' 56" W  View metadata report for BODC series reference number 1015125
1  Pumped water sample
Silicate concentration parameters in the water column
Horizontal spatial co-ordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Date and time
Silicate concentration parameters in the water column
Horizontal spatial co-ordinates
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Date and time

BODC idDate/TimeLocationDoc.
13604091996-10-08 10:59  — 1996-10-20 15:34 56° 59' 12" N  32° 13' 22" W — 63° 35' 3" N  13° 33' 8" W  View metadata report for BODC series reference number 1360409
Discrete samples 
57  CTD frame plus rosette samplerDensity of the water column
Transmittance and attenuance of the water column
Chlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Temperature of the water column
Nitrate concentration parameters in the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
666  Sample taken from ship's non-toxic supplyChlorophyll pigment concentrations in water bodies
Silicate concentration parameters in the water column
Salinity of the water column
Nitrate concentration parameters in the water column
Phosphate concentration parameters in the water column
Phaeopigment concentrations in the water column
529  SeaSoar profile from gridded dataVisible waveband radiance and irradiance measurements in the water column
Chlorophyll pigment concentrations in water bodies
Salinity of the water column
Temperature of the water column