Cruise inventory

RRS Challenger CH54

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH54
Cruise period1989-06-09 — 1989-06-22
StatusCompleted
Port of departureGreat Yarmouth, United Kingdom
PurposeResearch
ObjectivesThis was a joint operation between the RRS Challenger and the German research vessel Victor Hensen. At the start of the cruise both vessels were involved in two days of intensive sampling. Challenger made CTD profiles to determine the physical conditions likely to be favourable for fish larvae. Sampling continued in the German Bight for most of the rest of the cruise, with two final stations in the central and southern Norh Sea.

On 14th June, Challenger surveyed a grid 20 x 10km as sea truth for the European Imaging Spectroscopy Campaign (EISAC), conducted by the European Space Agency and the Joint Research Centre, Ispra. The survey was undertaken using an undulator equipped with light, chlorophyll, temperature and depth sensors. Data was also obtained from pumped surface samples from instruments, including a transmissometer, fluorometer, thermosalingoaph, particle counter and spectrophotometer. Aircraft surveyed 3 transects and it was hoped that the Challenger would be on Line 1 as the aircraft flew over. However, timing was difficult to achieve and so Line 2 was flown over the actual position of the ship. Line 3 included a "red tide" sampled by Challenger 3 hours after the overflight. The cruise was very successful, with over 85 CTD profiles and 80 plankton hauls. All objectives were achieved.

Results:
1. 10 undulator tows were completed, 4 with plankton samples taken.Temperature stratification was observed and chlorophyll concentration wasa measured.
2. 2 CTD transects, W-E and N-S were worked in collaboration with RV Victor Hensen. Physical mapping and particle characterisation in a series of CTD profiles. Samples of fish larvae were preserved for various analyses of nutritional condition.
3. Particle size measurements were made by Coulter Counter from surface and vertical profile samples.
4. The in-situ light meter and 14C incubation rig was deployed on 8 days to determine the productivity of different size fractions of phytoplankton and the light a
Chief scientistIan Joint (Plymouth Marine Laboratory)
ProjectNorth Sea Project
Coordinating bodyNERC
Cruise reportRRS Challenger CH54 cruise report ch54_89.pdf — access key 'C' (0.32 MB) 
Ocean/sea areas 
GeneralNorth Sea
SpecificNorth Sea
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Description: cont.
Water bottle stationsQuantity: number of samples = 85
Description: surface only
CTD stationsQuantity: number of profiles = 91
Transparency (eg transmissometer)Quantity: number of profiles = 85
Optics (eg underwater light levels)Quantity: number of profiles = 10
Chemical oceanography 
OxygenQuantity: number of profiles = 85
Biology and fisheries 
Primary productivityQuantity: number of experiments = 9
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 90
PhytoplanktonQuantity: number of samples = 20
ZooplanktonQuantity: number of samples = 80
Eggs and larvaeQuantity: number of samples = 80
Description: distribution,energy transfers
Pelagic bacteria/micro-organismsQuantity: number of profiles = 90
Meteorology 
Incident radiationDescription: cont.
Data held at BODC 
Series/Profiles 
11  Bottle station
Quality control flags
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Reference numbers
Quality control flags
Chlorophyll pigment concentrations in water bodies
Vertical spatial coordinates
Reference numbers

BODC idDate/TimeLocationDoc.
16536981989-06-19 06:06 53° 57' 44" N  7° 58' 48" E  View metadata report for BODC series reference number 1653698
16537051989-06-20 04:18 54° 10' 0" N  3° 45' 7" E  View metadata report for BODC series reference number 1653705
16537171989-06-21 09:17 52° 43' 41" N  2° 29' 31" E  View metadata report for BODC series reference number 1653717
16536131989-06-11 04:25 53° 59' 54" N  6° 12' 59" E  View metadata report for BODC series reference number 1653613
16536251989-06-12 04:18 54° 6' 4" N  7° 50' 25" E  View metadata report for BODC series reference number 1653625
16536371989-06-13 04:46 54° 2' 35" N  7° 51' 8" E  View metadata report for BODC series reference number 1653637
16536491989-06-14 04:12 54° 7' 38" N  8° 10' 1" E  View metadata report for BODC series reference number 1653649
16536501989-06-15 04:15 54° 26' 56" N  6° 51' 10" E  View metadata report for BODC series reference number 1653650
16536621989-06-16 05:28 54° 47' 58" N  6° 3' 20" E  View metadata report for BODC series reference number 1653662
16536741989-06-17 04:23 55° 19' 8" N  4° 52' 12" E  View metadata report for BODC series reference number 1653674
16536861989-06-18 04:45 55° 18' 5" N  7° 12' 40" E  View metadata report for BODC series reference number 1653686
91  CTD/STD cast
Density of the water column
Visible waveband radiance and irradiance measurements in 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
Visible waveband radiance and irradiance measurements in 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.
8179051989-06-10 04:29 53° 20' 8" N  4° 48' 19" E  View metadata report for BODC series reference number 817905
8179171989-06-11 04:17 53° 59' 54" N  6° 12' 59" E  View metadata report for BODC series reference number 817917
8179291989-06-11 11:47 53° 59' 57" N  6° 7' 13" E  View metadata report for BODC series reference number 817929
8179301989-06-11 17:49 53° 59' 51" N  6° 13' 54" E  View metadata report for BODC series reference number 817930
8179421989-06-11 20:36 53° 59' 55" N  6° 9' 55" E  View metadata report for BODC series reference number 817942
8179541989-06-12 04:17 54° 6' 4" N  7° 50' 25" E  View metadata report for BODC series reference number 817954
8179661989-06-12 12:14 54° 6' 2" N  8° 1' 37" E  View metadata report for BODC series reference number 817966
8179781989-06-12 17:03 54° 5' 56" N  8° 11' 59" E  View metadata report for BODC series reference number 817978
8179911989-06-12 22:09 54° 8' 20" N  7° 47' 37" E  View metadata report for BODC series reference number 817991
8180051989-06-13 04:39 54° 2' 35" N  7° 51' 9" E  View metadata report for BODC series reference number 818005
8180171989-06-13 07:06 54° 6' 4" N  7° 50' 58" E  View metadata report for BODC series reference number 818017
8180291989-06-13 10:19 54° 0' 52" N  7° 50' 43" E  View metadata report for BODC series reference number 818029
8180301989-06-13 11:50 53° 59' 52" N  7° 50' 30" E  View metadata report for BODC series reference number 818030
8180421989-06-13 14:41 53° 55' 54" N  7° 51' 11" E  View metadata report for BODC series reference number 818042
8180541989-06-13 15:44 53° 53' 53" N  7° 51' 12" E  View metadata report for BODC series reference number 818054
8180661989-06-13 19:46 54° 5' 8" N  7° 49' 50" E  View metadata report for BODC series reference number 818066
8180781989-06-14 04:07 54° 7' 38" N  8° 10' 1" E  View metadata report for BODC series reference number 818078
8180911989-06-14 19:07 54° 39' 55" N  7° 32' 55" E  View metadata report for BODC series reference number 818091
8181091989-06-15 04:14 54° 26' 55" N  6° 51' 10" E  View metadata report for BODC series reference number 818109
8181101989-06-15 11:05 54° 26' 58" N  6° 52' 32" E  View metadata report for BODC series reference number 818110
8181221989-06-15 16:04 54° 27' 19" N  6° 49' 20" E  View metadata report for BODC series reference number 818122
8181341989-06-15 21:50 54° 27' 28" N  6° 50' 8" E  View metadata report for BODC series reference number 818134
8181461989-06-16 05:20 54° 47' 58" N  6° 3' 20" E  View metadata report for BODC series reference number 818146
8181581989-06-16 11:04 54° 47' 8" N  6° 3' 44" E  View metadata report for BODC series reference number 818158
8181711989-06-16 17:52 54° 41' 53" N  6° 17' 25" E  View metadata report for BODC series reference number 818171
8181831989-06-17 04:15 55° 19' 8" N  4° 52' 12" E  View metadata report for BODC series reference number 818183
8181951989-06-17 10:43 55° 19' 13" N  4° 54' 38" E  View metadata report for BODC series reference number 818195
8182021989-06-17 13:47 55° 15' 17" N  4° 45' 56" E  View metadata report for BODC series reference number 818202
8182141989-06-17 16:30 55° 26' 50" N  5° 2' 51" E  View metadata report for BODC series reference number 818214
8182261989-06-17 18:31 55° 17' 30" N  4° 54' 14" E  View metadata report for BODC series reference number 818226
8182381989-06-18 04:40 55° 18' 5" N  7° 12' 40" E  View metadata report for BODC series reference number 818238
8182511989-06-18 06:24 55° 17' 44" N  7° 1' 0" E  View metadata report for BODC series reference number 818251
8182631989-06-18 09:11 55° 17' 56" N  7° 35' 33" E  View metadata report for BODC series reference number 818263
8182751989-06-18 12:32 55° 14' 31" N  7° 13' 42" E  View metadata report for BODC series reference number 818275
8182871989-06-18 18:45 55° 14' 34" N  7° 9' 42" E  View metadata report for BODC series reference number 818287
8182991989-06-19 04:13 54° 5' 43" N  7° 53' 16" E  View metadata report for BODC series reference number 818299
8183061989-06-19 04:57 54° 3' 4" N  7° 55' 11" E  View metadata report for BODC series reference number 818306
8183181989-06-19 05:32 54° 0' 22" N  7° 57' 1" E  View metadata report for BODC series reference number 818318
8183311989-06-19 06:04 53° 57' 44" N  7° 58' 48" E  View metadata report for BODC series reference number 818331
8183431989-06-19 06:44 53° 54' 54" N  8° 0' 2" E  View metadata report for BODC series reference number 818343
8183551989-06-19 07:14 53° 52' 58" N  7° 58' 29" E  View metadata report for BODC series reference number 818355
8183671989-06-19 10:57 53° 56' 26" N  7° 26' 6" E  View metadata report for BODC series reference number 818367
8183791989-06-19 11:50 54° 1' 3" N  7° 22' 55" E  View metadata report for BODC series reference number 818379
8183801989-06-19 12:42 54° 5' 44" N  7° 19' 20" E  View metadata report for BODC series reference number 818380
8183921989-06-19 18:07 54° 10' 21" N  6° 0' 55" E  View metadata report for BODC series reference number 818392
8184111989-06-20 04:11 54° 10' 0" N  3° 45' 7" E  View metadata report for BODC series reference number 818411
8184231989-06-20 09:05 54° 10' 1" N  3° 47' 57" E  View metadata report for BODC series reference number 818423
8184351989-06-20 09:58 54° 9' 34" N  3° 48' 21" E  View metadata report for BODC series reference number 818435
8184471989-06-20 13:38 54° 9' 10" N  3° 48' 47" E  View metadata report for BODC series reference number 818447
8184591989-06-20 16:42 54° 15' 52" N  3° 43' 13" E  View metadata report for BODC series reference number 818459
8184601989-06-20 20:46 54° 10' 27" N  3° 48' 20" E  View metadata report for BODC series reference number 818460
8184721989-06-21 09:11 52° 43' 41" N  2° 29' 31" E  View metadata report for BODC series reference number 818472
8184841989-06-21 11:25 52° 43' 54" N  2° 50' 55" E  View metadata report for BODC series reference number 818484
8184961989-06-21 13:50 52° 30' 34" N  2° 49' 4" E  View metadata report for BODC series reference number 818496
8185031989-06-21 15:59 52° 30' 57" N  2° 29' 58" E  View metadata report for BODC series reference number 818503
8185151989-06-11 07:41 53° 59' 14" N  6° 8' 20" E  View metadata report for BODC series reference number 818515
8185271989-06-12 10:11 54° 5' 56" N  7° 52' 44" E  View metadata report for BODC series reference number 818527
8185391989-06-12 10:36 54° 5' 59" N  7° 54' 31" E  View metadata report for BODC series reference number 818539
8185401989-06-12 11:01 54° 5' 58" N  7° 56' 19" E  View metadata report for BODC series reference number 818540
8185521989-06-12 11:25 54° 6' 0" N  7° 58' 5" E  View metadata report for BODC series reference number 818552
8185641989-06-12 11:51 54° 6' 2" N  7° 59' 48" E  View metadata report for BODC series reference number 818564
8185761989-06-12 14:53 54° 6' 2" N  8° 3' 33" E  View metadata report for BODC series reference number 818576
8185881989-06-12 15:14 54° 6' 2" N  8° 5' 23" E  View metadata report for BODC series reference number 818588
8186071989-06-12 15:38 54° 5' 58" N  8° 7' 15" E  View metadata report for BODC series reference number 818607
8186191989-06-12 16:23 54° 5' 53" N  8° 9' 24" E  View metadata report for BODC series reference number 818619
8186201989-06-12 16:44 54° 5' 57" N  8° 10' 22" E  View metadata report for BODC series reference number 818620
8186321989-06-13 07:42 54° 5' 7" N  7° 50' 58" E  View metadata report for BODC series reference number 818632
8186441989-06-13 08:38 54° 4' 3" N  7° 50' 50" E  View metadata report for BODC series reference number 818644
8186561989-06-13 09:07 54° 3' 0" N  7° 50' 37" E  View metadata report for BODC series reference number 818656
8186681989-06-13 09:47 54° 1' 56" N  7° 50' 51" E  View metadata report for BODC series reference number 818668
8186811989-06-13 12:25 53° 58' 57" N  7° 50' 39" E  View metadata report for BODC series reference number 818681
8186931989-06-13 13:15 53° 57' 53" N  7° 50' 45" E  View metadata report for BODC series reference number 818693
8187001989-06-13 13:46 53° 56' 57" N  7° 50' 50" E  View metadata report for BODC series reference number 818700
8187121989-06-13 15:05 53° 54' 58" N  7° 51' 10" E  View metadata report for BODC series reference number 818712
8187241989-06-13 16:10 53° 53' 1" N  7° 51' 7" E  View metadata report for BODC series reference number 818724
8187361989-06-14 14:33 54° 8' 51" N  8° 1' 49" E  View metadata report for BODC series reference number 818736
8187481989-06-16 12:49 54° 47' 31" N  6° 3' 45" E  View metadata report for BODC series reference number 818748
8187611989-06-16 13:37 54° 46' 13" N  6° 6' 25" E  View metadata report for BODC series reference number 818761
8187731989-06-16 14:17 54° 44' 58" N  6° 9' 11" E  View metadata report for BODC series reference number 818773
8187851989-06-16 16:18 54° 44' 14" N  6° 11' 27" E  View metadata report for BODC series reference number 818785
8187971989-06-16 17:07 54° 43' 18" N  6° 14' 29" E  View metadata report for BODC series reference number 818797
8188041989-06-17 06:28 55° 18' 21" N  4° 54' 45" E  View metadata report for BODC series reference number 818804
8188161989-06-17 07:14 55° 18' 19" N  4° 52' 10" E  View metadata report for BODC series reference number 818816
8188281989-06-17 08:02 55° 20' 9" N  4° 52' 42" E  View metadata report for BODC series reference number 818828
8188411989-06-17 08:46 55° 20' 5" N  4° 56' 25" E  View metadata report for BODC series reference number 818841
8188531989-06-17 09:29 55° 18' 9" N  4° 56' 59" E  View metadata report for BODC series reference number 818853
8188651989-06-19 09:36 53° 49' 1" N  7° 31' 6" E  View metadata report for BODC series reference number 818865
8188771989-06-19 10:11 53° 52' 9" N  7° 29' 1" E  View metadata report for BODC series reference number 818877
8188891989-06-19 13:31 54° 10' 43" N  7° 19' 9" E  View metadata report for BODC series reference number 818889
8188901989-06-21 18:00 52° 30' 51" N  2° 9' 58" E  View metadata report for BODC series reference number 818890
8189081989-06-21 20:04 52° 41' 43" N  2° 10' 2" E  View metadata report for BODC series reference number 818908
Discrete samples 
91  CTD frame plus rosette samplerDensity of the water column
Visible waveband radiance and irradiance measurements in the water column
Transmittance and attenuance of the water column
Metadata parameters
Chlorophyll pigment concentrations in water bodies
Primary production in the water column
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
25  Sample taken from ship's non-toxic supplyChlorophyll pigment concentrations in water bodies
Phaeopigment concentrations in the water column