Resources

RRS Challenger CH120

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Challenger (74CH)
Cruise identifierCH120
Cruise period1995-07-18 — 1995-08-06
StatusCompleted
Port of departurePlymouth, United Kingdom
Port of returnArdrossan, United Kingdom
PurposeResearch
Objectives1) To service the DML LOIS Shelf Edge Study (SES) current mooring Y in the Tiree Passage.
2) To work the Anton Dohrn to Rockall Seamount CTD/nutrient/chlorophyll section (Ellett Line).
3) To recover the DML WOCE current meter mooring at station M (57° 18' N, 10° 23' W). This was not achieved.
4) To work CTD and water sampling sections along the SES lines N and S.
5) To measure rates of nitrogen fixation in the euphotic zone west of Scotland.
6) To collect large water samples over the shelf for Cs and Th isotope analysis.
7) To recover SES moorings from the shelf and slope regions.
8) To obtain multi-cores, gravity cores and box cores at SES stations S700, R1000, N1500 and N2000.
9) To trawl with an Agassiz trawl at deep and slope stations.
10) To obtain epibenthic sledge samples at station M in the Rockall Trough.
Chief scientistAnton Edwards (Dunstaffnage Marine Laboratory)
ProjectLOIS-SES
Coordinating bodyPlymouth Marine Laboratory
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificNW Scotland
Track chartsRRS Challenger CH120 cruise track — ch120trk.html
Measurements 
Physical oceanography 
CTD stationsQuantity: number of stations = 52
Description: Oxygen received, but rejected
Chemical oceanography 
PhosphateQuantity: number of stations = 39
Description: Water bottle stations for nutrients and chlorophyll. Chlorophyll not held at BODC.
NitrateQuantity: number of stations = 39
Description: Water bottle stations for nutrients and chlorophyll. Chlorophyll not held at BODC.
AmmoniaQuantity: number of stations = 39
Description: Water bottle stations for nutrients and chlorophyll. Chlorophyll not held at BODC.
SilicateQuantity: number of stations = 39
Description: Water bottle stations for nutrients and chlorophyll. Chlorophyll not held at BODC.
RadioactivityQuantity: number of samples = 5
Description: Surface water samples for 137Cs
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 39
Description: Water bottle stations for nutrients and chlorophyll. Chlorophyll not held at BODC.
ZoobenthosQuantity: number of stations = 2
Description: Benthic trawls
ZoobenthosQuantity: number of stations = 4
Description: Macrobenthos biomass
Other biological/fisheries measurementQuantity: number of stations = 3
Description: Sediment oxygen demand and sulphate reduction rate incubations. SOD held by BODC.
Data held at BODC Get data
Series/Profiles 
42  Bottle station
Reference numbers
Vertical spatial coordinates
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
Quality control flags
Reference numbers
Vertical spatial coordinates
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
Quality control flags

BODC idDate/TimeLocationDoc.
12872611995-07-27 00:52 56° 44' 12" N  9° 26' 56" W  View metadata report for BODC series reference number 1287261
12868231995-07-27 08:25 56° 27' 8" N  9° 19' 59" W  View metadata report for BODC series reference number 1286823
12868601995-07-27 22:28 56° 27' 29" N  9° 4' 5" W  View metadata report for BODC series reference number 1286860
12868961995-07-29 14:21 56° 40' 1" N  6° 8' 3" W  View metadata report for BODC series reference number 1286896
12869761995-07-30 01:37 56° 47' 7" N  8° 0' 4" W  View metadata report for BODC series reference number 1286976
12871561995-08-01 06:00 57° 30' 29" N  12° 15' 0" W  View metadata report for BODC series reference number 1287156
12869521995-07-29 22:33 56° 43' 58" N  7° 30' 4" W  View metadata report for BODC series reference number 1286952
12870151995-07-30 07:44 56° 59' 59" N  8° 59' 58" W  View metadata report for BODC series reference number 1287015
12870271995-07-25 23:25 56° 37' 26" N  9° 1' 30" W  View metadata report for BODC series reference number 1287027
12870521995-07-30 12:42 57° 4' 14" N  9° 19' 37" W  View metadata report for BODC series reference number 1287052
12868721995-07-27 23:33 56° 27' 31" N  9° 3' 0" W  View metadata report for BODC series reference number 1286872
12870391995-07-30 09:05 57° 1' 32" N  9° 6' 2" W  View metadata report for BODC series reference number 1287039
12870881995-07-31 00:31 57° 13' 58" N  10° 2' 48" W  View metadata report for BODC series reference number 1287088
12871201995-07-26 01:49 56° 38' 8" N  9° 3' 56" W  View metadata report for BODC series reference number 1287120
12871321995-07-31 17:46 57° 27' 0" N  11° 5' 3" W  View metadata report for BODC series reference number 1287132
12871931995-07-26 03:12 56° 38' 35" N  9° 7' 30" W  View metadata report for BODC series reference number 1287193
12868591995-07-27 19:47 56° 27' 25" N  9° 6' 42" W  View metadata report for BODC series reference number 1286859
12870401995-07-30 10:23 57° 3' 0" N  9° 13' 2" W  View metadata report for BODC series reference number 1287040
12871191995-07-31 11:59 57° 21' 46" N  10° 39' 17" W  View metadata report for BODC series reference number 1287119
12872241995-07-27 00:52 56° 44' 12" N  9° 26' 56" W  View metadata report for BODC series reference number 1287224
12868111995-07-25 19:54 56° 36' 19" N  8° 56' 19" W  View metadata report for BODC series reference number 1286811
12868351995-07-27 11:54 56° 27' 13" N  9° 15' 5" W  View metadata report for BODC series reference number 1286835
12868841995-07-28 02:15 56° 27' 8" N  8° 58' 16" W  View metadata report for BODC series reference number 1286884
12869031995-07-29 15:49 56° 41' 12" N  6° 17' 16" W  View metadata report for BODC series reference number 1286903
12869271995-07-25 21:57 56° 37' 0" N  9° 0' 34" W  View metadata report for BODC series reference number 1286927
12869881995-07-30 03:52 56° 50' 15" N  8° 19' 50" W  View metadata report for BODC series reference number 1286988
12870031995-07-30 06:18 56° 57' 0" N  8° 46' 59" W  View metadata report for BODC series reference number 1287003
12870641995-07-30 14:53 57° 6' 1" N  9° 25' 0" W  View metadata report for BODC series reference number 1287064
12870761995-07-30 19:15 57° 7' 30" N  9° 32' 14" W  View metadata report for BODC series reference number 1287076
12871441995-07-31 23:09 57° 29' 13" N  11° 32' 53" W  View metadata report for BODC series reference number 1287144
12871071995-07-31 06:29 57° 17' 55" N  10° 23' 3" W  View metadata report for BODC series reference number 1287107
12868471995-07-27 14:35 56° 28' 52" N  9° 8' 51" W  View metadata report for BODC series reference number 1286847
12869391995-07-29 18:21 56° 44' 1" N  6° 44' 52" W  View metadata report for BODC series reference number 1286939
12869401995-07-29 21:11 56° 43' 58" N  7° 19' 58" W  View metadata report for BODC series reference number 1286940
12872121995-07-26 07:39 56° 40' 51" N  9° 14' 55" W  View metadata report for BODC series reference number 1287212
12872361995-07-27 04:19 56° 27' 6" N  9° 39' 0" W  View metadata report for BODC series reference number 1287236
12869151995-07-29 16:39 56° 43' 58" N  6° 26' 56" W  View metadata report for BODC series reference number 1286915
12869641995-07-30 00:18 56° 44' 21" N  7° 40' 49" W  View metadata report for BODC series reference number 1286964
12871681995-08-01 16:28 57° 34' 0" N  13° 19' 59" W  View metadata report for BODC series reference number 1287168
12871811995-08-01 20:42 57° 32' 26" N  12° 52' 5" W  View metadata report for BODC series reference number 1287181
12872001995-07-26 06:02 56° 39' 49" N  9° 9' 58" W  View metadata report for BODC series reference number 1287200
12872481995-07-27 14:35 56° 28' 52" N  9° 8' 51" W  View metadata report for BODC series reference number 1287248
52  CTD/STD cast
Dissolved oxygen parameters in the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Vertical spatial coordinates
Salinity of the water column
Temperature of the water column

BODC idDate/TimeLocationDoc.
3876691995-08-05 02:26 55° 55' 58" N  7° 59' 42" W  View metadata report for BODC series reference number 387669
3876701995-08-05 04:22 55° 55' 59" N  7° 30' 0" W  View metadata report for BODC series reference number 387670
3901431995-07-25 21:57 56° 37' 0" N  9° 0' 34" W  View metadata report for BODC series reference number 390143
3903151995-07-29 18:21 56° 44' 1" N  6° 44' 52" W  View metadata report for BODC series reference number 390315
3903391995-07-29 21:11 56° 43' 58" N  7° 19' 58" W  View metadata report for BODC series reference number 390339
3904681995-07-30 19:15 57° 7' 30" N  9° 32' 14" W  View metadata report for BODC series reference number 390468
3905241995-07-31 15:55 57° 24' 1" N  10° 52' 4" W  View metadata report for BODC series reference number 390524
3876821995-08-05 07:00 55° 56' 7" N  6° 59' 46" W  View metadata report for BODC series reference number 387682
3901671995-07-26 01:49 56° 38' 8" N  9° 3' 56" W  View metadata report for BODC series reference number 390167
3901791995-07-26 03:12 56° 38' 35" N  9° 7' 30" W  View metadata report for BODC series reference number 390179
3902721995-07-27 23:33 56° 27' 31" N  9° 3' 0" W  View metadata report for BODC series reference number 390272
3904561995-07-30 14:53 57° 6' 1" N  9° 25' 0" W  View metadata report for BODC series reference number 390456
3904811995-07-30 21:29 57° 8' 59" N  9° 41' 57" W  View metadata report for BODC series reference number 390481
3905001995-07-31 06:29 57° 17' 55" N  10° 23' 3" W  View metadata report for BODC series reference number 390500
3905851995-08-01 06:00 57° 30' 29" N  12° 15' 0" W  View metadata report for BODC series reference number 390585
3906161995-08-01 18:25 57° 32' 59" N  13° 0' 0" W  View metadata report for BODC series reference number 390616
3906281995-08-01 20:42 57° 32' 26" N  12° 52' 5" W  View metadata report for BODC series reference number 390628
3902351995-07-27 11:54 56° 27' 13" N  9° 15' 5" W  View metadata report for BODC series reference number 390235
3902591995-07-27 19:47 56° 27' 25" N  9° 6' 42" W  View metadata report for BODC series reference number 390259
3902841995-07-29 14:21 56° 40' 1" N  6° 8' 3" W  View metadata report for BODC series reference number 390284
3903271995-07-29 19:32 56° 44' 30" N  6° 59' 55" W  View metadata report for BODC series reference number 390327
3906531995-08-04 21:37 55° 55' 36" N  9° 0' 0" W  View metadata report for BODC series reference number 390653
3902961995-07-29 15:49 56° 41' 12" N  6° 17' 16" W  View metadata report for BODC series reference number 390296
3904201995-07-30 09:05 57° 1' 32" N  9° 6' 2" W  View metadata report for BODC series reference number 390420
3904321995-07-30 10:23 57° 3' 0" N  9° 13' 2" W  View metadata report for BODC series reference number 390432
3905481995-07-31 20:17 57° 27' 54" N  11° 18' 52" W  View metadata report for BODC series reference number 390548
3905611995-07-31 23:09 57° 29' 13" N  11° 32' 53" W  View metadata report for BODC series reference number 390561
3905731995-08-01 02:32 57° 29' 31" N  11° 51' 20" W  View metadata report for BODC series reference number 390573
3905971995-08-01 15:10 57° 34' 46" N  13° 35' 32" W  View metadata report for BODC series reference number 390597
3906411995-08-01 22:41 57° 31' 57" N  12° 38' 1" W  View metadata report for BODC series reference number 390641
3901551995-07-25 23:25 56° 37' 26" N  9° 1' 30" W  View metadata report for BODC series reference number 390155
3903031995-07-29 16:39 56° 43' 58" N  6° 26' 56" W  View metadata report for BODC series reference number 390303
3903761995-07-30 03:52 56° 50' 15" N  8° 19' 50" W  View metadata report for BODC series reference number 390376
3904071995-07-30 06:18 56° 57' 0" N  8° 46' 59" W  View metadata report for BODC series reference number 390407
3904441995-07-30 12:42 57° 4' 14" N  9° 19' 37" W  View metadata report for BODC series reference number 390444
3906041995-08-01 16:28 57° 34' 0" N  13° 19' 59" W  View metadata report for BODC series reference number 390604
3906651995-08-04 23:35 55° 55' 51" N  8° 30' 19" W  View metadata report for BODC series reference number 390665
3901801995-07-26 06:02 56° 39' 49" N  9° 9' 58" W  View metadata report for BODC series reference number 390180
3903521995-07-30 00:18 56° 44' 21" N  7° 40' 49" W  View metadata report for BODC series reference number 390352
3901311995-07-25 19:54 56° 36' 19" N  8° 56' 19" W  View metadata report for BODC series reference number 390131
3901921995-07-26 07:39 56° 40' 51" N  9° 14' 55" W  View metadata report for BODC series reference number 390192
3902471995-07-27 14:35 56° 28' 52" N  9° 8' 51" W  View metadata report for BODC series reference number 390247
3902601995-07-27 22:28 56° 27' 29" N  9° 4' 5" W  View metadata report for BODC series reference number 390260
3903641995-07-30 01:37 56° 47' 7" N  8° 0' 4" W  View metadata report for BODC series reference number 390364
3904931995-07-31 00:31 57° 13' 58" N  10° 2' 48" W  View metadata report for BODC series reference number 390493
3902111995-07-27 00:52 56° 44' 12" N  9° 26' 56" W  View metadata report for BODC series reference number 390211
3902231995-07-27 04:19 56° 27' 6" N  9° 39' 0" W  View metadata report for BODC series reference number 390223
3903401995-07-29 22:33 56° 43' 58" N  7° 30' 4" W  View metadata report for BODC series reference number 390340
3903881995-07-30 04:52 56° 57' 0" N  8° 30' 0" W  View metadata report for BODC series reference number 390388
3904191995-07-30 07:44 56° 59' 59" N  8° 59' 58" W  View metadata report for BODC series reference number 390419
3905121995-07-31 11:59 57° 21' 46" N  10° 39' 17" W  View metadata report for BODC series reference number 390512
3905361995-07-31 17:46 57° 27' 0" N  11° 5' 3" W  View metadata report for BODC series reference number 390536
2  Fluorometers
Date and time
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies
Date and time
Raw fluorometer output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
4760581995-07-25 12:02:57  — 1995-08-15 10:02:57 56° 26' 52" N  9° 2' 45" W  View metadata report for BODC series reference number 476058
4761631995-07-24 20:09:18  — 1995-08-15 13:02:57 56° 27' 57" N  8° 57' 6" W  View metadata report for BODC series reference number 476163
2  Paddle wheel current meter
Date and time
Salinity of the water column
Temperature of the water column
Horizontal velocity of the water column (currents)
Date and time
Salinity of the water column
Temperature of the water column
Horizontal velocity of the water column (currents)

BODC idDate/TimeLocationDoc.
5081731995-07-29 14:45  — 1995-12-12 19:15 56° 37' 3" N  6° 24' 22" W  View metadata report for BODC series reference number 508173
5081001995-07-29 14:45  — 1995-12-15 23:45 56° 37' 3" N  6° 24' 22" W  View metadata report for BODC series reference number 508100
1  Thermistor chain
Date and time
Vertical spatial coordinates
Temperature of the water column
Date and time
Vertical spatial coordinates
Temperature of the water column

BODC idDate/TimeLocationDoc.
4394961995-07-24 17:30  — 1995-08-15 10:30 56° 27' 57" N  8° 57' 6" W  View metadata report for BODC series reference number 439496
1  Transmissometer
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column

BODC idDate/TimeLocationDoc.
4960601995-07-24 17:15  — 1995-08-11 09:21 56° 27' 57" N  8° 57' 6" W  View metadata report for BODC series reference number 496060
1  radiometers
Date and time
Raw light meter output
Chlorophyll pigment concentrations in water bodies
Date and time
Raw light meter output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
5060621995-07-25 12:01  — 1995-08-14 12:01 56° 27' 57" N  8° 57' 6" W  View metadata report for BODC series reference number 506062
Discrete samples 
3  Box coreZoobenthos taxonomy-related wet weight biomass per unit area of the bed
Zoobenthos non taxonomy-related wet weight biomass per unit area of the bed
54  CTD frame plus rosette samplerDissolved total and organic nitrogen concentrations in the water column
Dissolved total or organic phosphorus concentration in the water column
Temperature of the water column
Phosphate concentration parameters in the water column
Salinity of the water column
Silicate concentration parameters in the water column
Density of the water column
Ammonium and ammonia concentration parameters in water bodies
Radioactivity in water bodies
Nitrate concentration parameters in the water column
3  Instrument mooring
8  MulticorerConcentration of organic matter in sediments
Other fluxes between the bed and the water column
Stable isotopes in sediment
Sediment water content, porosity and surface area
Concentration of inorganic sulphur species in sediment
Sediment grain size parameters
5  Sample taken from ship's non-toxic supplyRadioactivity in water bodies