Resources

RV Seward Johnson SJ-08-03 Leg 2

Cruise summary report

Cruise Info. 
Ship name (ship code)RV Seward Johnson (33SW)
Cruise identifierSJ-08-03 Leg 2
Cruise period2008-04-22 — 2008-04-30
StatusCompleted
Port of departureFreeport, Bahamas
Port of returnFort Pierce, United States
PurposeResearch
ObjectivesThe RAPID/MOCHA program is a joint research effort between the National
Oceanography Centre (Southampton, UK), the University of Miami's Rosenstiel School of Marine and Atmospheric Science (RSMAS), and NOAA's Atlantic Oceanographic and Meteorological Laboratory (AOML). The objective of this program is to establish a pre-operational measurement system to continuously observe the strength and structure of the Atlantic meridional overturning circulation across the basin at 26º N. The UK program is referred to as RAPID-MOC and is a part of the UK Rapid Climate Change Program (RAPID) funded by the NERC. The
US program is referred to as MOCHA (Meridional Overturning Circulation and Heatflux Array) and is funded by the NSF.

This cruise was leg 2 from Freeport to Fort Pierce during which the UK
moorings were serviced. UK mooring gear was loaded on at Freeport and the recovered US mooring gear (from leg1) offloaded.
Chief scientistTorsten Kanzow (National Oceanography Centre, Southampton)
ProjectRAPID
Coordinating bodyNatural Environment Research Council (NERC)
Cruise reportRV Seward Johnson SJ-08-03 Leg 2 cruise report sewardjohnson08_03-2.pdf (4.57 MB) 
Ocean/sea areas 
GeneralNorth West Atlantic Ocean (limit 40W)
SpecificNorth West Atlantic
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 9
Description: Underway meteorology and surface data
Water bottle stationsQuantity: number of stations = 7
Description: Discrete salinity samples
CTD stationsQuantity: number of stations = 7
Description: CTD casts of temperature, salinity, pressure.
Current profiler (eg ADCP)Quantity: number of stations = 7
Description: LADCP casts
Moorings, landers, buoys 
Physical oceanography 
Current meters26° 29' 53" N  76° 49' 17" W — 23/04/08 WB1 recovery: 15 CTDs at 50,100,175,250,325,400,500,600,700,800,900,1000,1100,1200,1380m; 4 RCM at 100,400,800,1200 m
Current meters27° 0' 0" N  76° 8' 38" W — 27/04/08 WB4 recovery: 15 CTDs at 50,100,250,400,600,800,1000,1200,1600,2000,2500,3000,3500,4000,4500m; 7 RCMs at 100,400,800,1200,2000,3000,4000m
Current meters26° 28' 19" N  76° 38' 50" W — 26/04/08 WBH2 deployment: 3 CTDs at 3800,4300,4780m; 5 RCMs at 1500,2200,3000,3800,4600m
Current meters26° 29' 56" N  76° 49' 15" W — 23/04/08 WB1 deployment: 15 CTDs at 50,100,175,250,325,400,500,600,700,800,900,1000,1100,1200,1320m; 4 RCMs at 100,400,800,1200m
Current meters26° 30' 37" N  76° 44' 21" W — 26/04/08 WB2 deployment: 16 CTDs at 50,100,175,325,500,700,900,1100,1300,1500,1700,1900,2300,2800,3300,3750m; 7 RCMs at 100,175,375,800,1200,2050,3000m
Current meters26° 24' 54" N  75° 41' 53" W — 28/04/08 WB4 deployment: 15 CTDs at 50,100,250,400,600,800,1000,1200,1600,2000,2500,3000,3500,4000,4500m; 7 RCMs at 100,400,800,1200,2000,3000,4000m
Current meters26° 30' 37" N  76° 44' 39" W — 24/04/08 WB2 recovery: 16 CTDs at 50.100,175,325,500,700,900,1100,1300,1500,1700,1900,2300,28,,3300,3850m; 6 RCMs at 100,175,400,800,1200,2050m.
Current profiler (eg ADCP)26° 29' 47" N  76° 49' 8" W — 23/04/08 WBADCP recovery: 1 ADCP at 550m
Current profiler (eg ADCP)26° 30' 29" N  76° 50' 34" W — 23/04/08 WB0 deployment: ADCP and CMs
Current profiler (eg ADCP)26° 31' 31" N  76° 52' 6" W — 23/04/08 WBADCP deployment: 1 ADCP at 598m
Sea level (inc. bot. press., inverted echosounder)26° 30' 1" N  76° 2' 56" W — 27/04/08 WBL4 recovery: 1 BPR at 4810m
Sea level (inc. bot. press., inverted echosounder)27° 0' 0" N  76° 44' 39" W — 24/04/08 WBL3 recovery: 2 BPRs at 3900m
Sea level (inc. bot. press., inverted echosounder)26° 29' 55" N  76° 29' 38" W — 24/04/08 WBLB deployment: 2 BPRs at 4857m
Sea level (inc. bot. press., inverted echosounder)26° 24' 14" N  75° 42' 35" W — 28/04/08 WBL4 deployment: 1 BPR at 4705m
Sea level (inc. bot. press., inverted echosounder)26° 30' 24" N  76° 44' 39" W — 24/04/08 WBL3 deployment: 2 BPRs at 3887m
Sea level (inc. bot. press., inverted echosounder)26° 28' 19" N  76° 38' 50" W — 26/04/08 WBH2 deployment: 3 CTDs at 3800,4300,4780m; 5 RCMs at 1500,2200,3000,3800,4600m
Sea level (inc. bot. press., inverted echosounder)26° 30' 37" N  76° 44' 21" W — 26/04/08 WB2 deployment: 16 CTDs at 50,100,175,325,500,700,900,1100,1300,1500,1700,1900,2300,2800,3300,3750m; 7 RCMs at 100,175,375,800,1200,2050,3000m
Sea level (inc. bot. press., inverted echosounder)26° 29' 56" N  76° 49' 15" W — 23/04/08 WB1 deployment: 15 CTDs at 50,100,175,250,325,400,500,600,700,800,900,1000,1100,1200,1320m; 4 RCMs at 100,400,800,1200m
Sea level (inc. bot. press., inverted echosounder)26° 24' 54" N  75° 41' 53" W — 28/04/08 WB4 deployment: 15 CTDs at 50,100,250,400,600,800,1000,1200,1600,2000,2500,3000,3500,4000,4500m; 7 RCMs at 100,400,800,1200,2000,3000,4000m
Other physical oceanographic measurements26° 30' 37" N  76° 44' 39" W — 24/04/08 WB2 recovery: 16 CTDs at 50.100,175,325,500,700,900,1100,1300,1500,1700,1900,2300,28,,3300,3850m; 6 RCMs at 100,175,400,800,1200,2050m.
Other physical oceanographic measurements27° 0' 0" N  76° 8' 38" W — 27/04/08 WB4 recovery: 15 CTDs at 50,100,250,400,600,800,1000,1200,1600,2000,2500,3000,3500,4000,4500m; 7 RCMs at 100,400,800,1200,2000,3000,4000m
Other physical oceanographic measurements26° 30' 29" N  76° 50' 34" W — 23/04/08 WB0 deployment: ADCP and CMs
Other physical oceanographic measurements26° 29' 53" N  76° 49' 17" W — 23/04/08 WB1 recovery: 15 CTDs at 50,100,175,250,325,400,500,600,700,800,900,1000,1100,1200,1380m; 4 RCM at 100,400,800,1200 m
Data held at BODC Get data
Series/Profiles 
25  Acoustic current meter
Reference numbers
Moored instrument depth
Date and time
Temperature of the water column
Horizontal velocity of the water column (currents)
Reference numbers
Moored instrument depth
Date and time
Temperature of the water column
Horizontal velocity of the water column (currents)

BODC idDate/TimeLocationDoc.
10156842008-04-28 16:29  — 2009-04-27 10:15 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015684
10158072008-04-26 17:54  — 2009-04-29 10:21 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015807
10157882008-04-26 17:59  — 2009-04-29 10:29 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015788
10157272008-04-25 23:59  — 2009-04-30 09:58 26° 30' 0" N  76° 49' 15" W  View metadata report for BODC series reference number 1015727
10157392008-04-25 23:59  — 2009-04-30 10:00 26° 30' 0" N  76° 49' 15" W  View metadata report for BODC series reference number 1015739
10157522008-04-26 00:00  — 2009-04-10 00:05 26° 30' 0" N  76° 49' 15" W  View metadata report for BODC series reference number 1015752
10159852008-04-26 23:59  — 2009-04-28 16:51 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 1015985
10160482008-04-23 14:00  — 2009-12-03 17:00 26° 30' 20" N  76° 50' 29" W  View metadata report for BODC series reference number 1016048
10159482008-04-26 23:59  — 2009-04-28 16:49 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 1015948
10159612008-04-26 23:59  — 2009-04-28 16:51 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 1015961
10160612008-04-23 14:00  — 2009-12-03 17:00 26° 30' 20" N  76° 50' 29" W  View metadata report for BODC series reference number 1016061
10158202008-04-26 17:59  — 2009-04-29 10:25 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015820
10157032008-04-28 16:29  — 2009-04-27 10:22 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015703
10157152008-04-28 16:00  — 2009-04-27 10:26 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015715
10157402008-04-26 00:00  — 2009-04-30 09:33 26° 30' 0" N  76° 49' 15" W  View metadata report for BODC series reference number 1015740
10158322008-04-26 17:59  — 2009-04-29 10:25 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015832
10159972008-04-26 23:54  — 2009-04-28 16:44 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 1015997
10158192008-04-26 17:59  — 2009-04-29 10:17 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015819
10156592008-04-28 16:29  — 2009-04-27 10:22 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015659
10156722008-04-28 16:29  — 2009-04-27 10:20 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015672
10156602008-04-28 16:29  — 2009-04-27 10:28 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015660
10156962008-04-28 16:29  — 2009-04-27 10:21 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 1015696
10159732008-04-26 23:59  — 2009-04-28 16:56 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 1015973
10158562008-04-26 17:59  — 2009-04-29 10:25 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015856
10158442008-04-26 17:59  — 2009-04-29 10:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 1015844
2  Acoustic doppler current profiler
Reference numbers
Date and time
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Reference numbers
Date and time
Vertical spatial coordinates
Horizontal velocity of the water column (currents)

BODC idDate/TimeLocationDoc.
10156232008-04-23 14:00  — 2009-12-03 17:00 26° 30' 20" N  76° 50' 29" W  View metadata report for BODC series reference number 1015623
10156352008-04-24 00:30  — 2009-04-18 13:00 26° 31' 31" N  76° 52' 7" W  View metadata report for BODC series reference number 1015635
1  Bottom pressure sensor tide gauge
Reference numbers
Date and time
Temperature of the water column
Sea level
Reference numbers
Date and time
Temperature of the water column
Sea level

BODC idDate/TimeLocationDoc.
11373432008-04-24 22:15  — 2010-04-01 10:00 26° 30' 24" N  76° 44' 39" W  View metadata report for BODC series reference number 1137343
48  Moored CTD
Reference numbers
Moored instrument depth
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Reference numbers
Moored instrument depth
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column

BODC idDate/TimeLocationDoc.
9733312008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973331
9733802008-04-25 23:00  — 2009-04-30 09:30:02 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973380
9733922008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973392
9734352008-04-25 23:00  — 2009-04-30 10:00 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973435
9734842008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973484
9735032008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973503
9738892008-04-27 00:00  — 2009-04-28 16:30 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 973889
9733062008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973306
9734602008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973460
9735152008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973515
9737732008-04-28 16:00:01  — 2009-04-27 10:30 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973773
9736322008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973632
9734112008-04-25 23:00  — 2009-04-30 10:00 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973411
9734232008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973423
9734962008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973496
9735392008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973539
9736192008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973619
9737122008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973712
9737972008-04-28 16:00:01  — 2009-04-27 10:30 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973797
9734592008-04-25 23:00  — 2009-04-30 09:30:02 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973459
9735402008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973540
9736072008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973607
9736202008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973620
9736812008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973681
9737362008-04-28 16:00:01  — 2009-04-27 10:30 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973736
9737482008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973748
9737612008-04-28 16:00  — 2009-04-27 10:30 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973761
9738902008-04-27 00:00  — 2009-04-28 16:30:02 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 973890
9733432008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973343
9733672008-04-25 23:00  — 2009-04-30 09:30:02 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973367
9734472008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973447
9734722008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973472
9738772008-04-27 00:00  — 2009-04-28 16:30 26° 28' 19" N  76° 38' 50" W  View metadata report for BODC series reference number 973877
9733182008-04-25 23:00  — 2009-04-30 09:30:02 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973318
9733792008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973379
9735882008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973588
9736442008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973644
9737852008-04-28 16:00:01  — 2009-04-27 10:30:03 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973785
9736562008-04-28 16:00:01  — 2009-04-27 10:30 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973656
9737242008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973724
9733552008-04-25 23:00  — 2009-04-30 09:30 26° 31' 31" N  76° 49' 15" W  View metadata report for BODC series reference number 973355
9735272008-04-26 18:00  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973527
9736682008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973668
9736932008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973693
9737002008-04-28 16:00:01  — 2009-04-27 10:30:02 26° 24' 54" N  75° 41' 53" W  View metadata report for BODC series reference number 973700
9735762008-04-26 18:00  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973576
9735522008-04-26 18:00:02  — 2009-04-29 10:00:01 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973552
9735642008-04-26 18:00:02  — 2009-04-29 10:00:02 26° 30' 37" N  76° 44' 21" W  View metadata report for BODC series reference number 973564
Discrete samples 
7  CTD frame plus rosette sampler
9  Instrument mooring