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RRS Discovery D309-310

Cruise summary report

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Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD309-310
Cruise period2006-08-18 — 2006-09-05
StatusCompleted
Port of departureSt. John's, Canada
Port of returnReykjavík, Iceland
PurposeResearch
ObjectivesA Deep Western Boundary Current array of seven moorings was recovered and a replacement array of five moorings was deployed. For IFREMER, one mooring and one glider were recovered; one IfM-GEOMAR and three NIOZ moorings were recovered, serviced and redeployed. Hydrographic work comprised 25 CTD/LADCP stations, and three tows of the Moving Vessel Profiler (MVP); water samples were captured on each station for the measurement of salinity.
Continuous underway measurements comprised: navigation; currents, using ship-mounted ADCPs (75 and 150 kHz); meteorology; sea surface temperature and salinity; and bathymetry. D309-310 (CFER-2) is a part of the project "Cape Farewell and Eirik Ridge: Interannual to Millennial Thermohaline Circulation Variability", funded by the UK Natural Environment Research Council as part of its "Rapid Climate Change" Directed Research Programme.
Chief scientistSheldon Bacon (National Oceanography Centre, Southampton)
ProjectRAPID
Coordinating bodyNERC
Cruise reportRRS Discovery D309-310 cruise report d309.pdf (3.10 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
SpecificCape Farewell, Southern Greenland and Eirik Ridge. Irminger Sea.
Track chartsRRS Discovery D309-310 cruise track — d309trk.pdf (0.07 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 19
Description: Surfmet package. TSG measurements (temp, cond, transmission), meteorology (PAR, TIR, humidity, air temp, wind speed) and oxygen/carbon dioxide analyser.
Water bottle stationsDescription: Discrete salinity samples taken from CTD bottles for calibration of CTD salinity (number of samples unknown)
Water bottle stationsDescription: Discrete salinity samples taken from non-toxic water supply for TSG salinity calibration (number of samples not known)
CTD stationsQuantity: number of stations = 25
Description: CTD casts. Seabird 911+ with dual temp/cond sensors. Transmissometer, fluorometer, backscatter, oxygen SBE43.
Transparency (eg transmissometer)Quantity: number of stations = 25
Description: CTD casts. Seabird 911+ with dual temp/cond sensors. Transmissometer, fluorometer, backscatter, oxygen SBE43.
Current profiler (eg ADCP)Quantity: activity duration in days = 19
Description: VMADCP (75 and 150 kHz)
Current profiler (eg ADCP)Quantity: number of stations = 25
Description: LADCP (x2) attached to CTD frame.
Other physical oceanographic measurementsQuantity: number of deployments = 3
Description: Moving vessel profiler (BOT MVP 300). CTD, fluorometer, SBE23 oxygen sensor, PAR sensors (x2).
Chemical oceanography 
OxygenQuantity: number of stations = 25
Description: CTD casts. Seabird 911+ with dual temp/cond sensors. Transmissometer, fluorometer, backscatter, oxygen SBE43.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of stations = 25
Description: CTD casts. Seabird 911+ with dual temp/cond sensors. Transmissometer, fluorometer, backscatter, oxygen SBE43.
Meteorology 
Incident radiationQuantity: activity duration in days = 19
Description: Surfmet package. TSG measurements (temp, cond, transmission), meteorology (PAR, TIR, humidity, air temp, wind speed) and oxygen/carbon dioxide analyser.
Routine standard measurementsQuantity: activity duration in days = 19
Description: Surfmet package. TSG measurements (temp, cond, transmission), meteorology (PAR, TIR, humidity, air temp, wind speed) and oxygen/carbon dioxide analyser.
Moorings, landers, buoys 
Physical oceanography 
Current meters59° 11' 10" N  40° 21' 20" W — RAPID mooring C. Deployed 25/08/2006 11:21:45. 2908 metres depth.
Current meters59° 33' 10" N  33° 54' 2" W — RAPID mooring A. Deployed 29/08/2006 09:39:30.
Current meters59° 14' 12" N  36° 23' 58" W — NIOZ mooring LOCO3-4 deployment on 01/09/2006 13:20
Current meters59° 34' 1" N  41° 32' 59" W — RAPID mooring A. Recovered 23/08/2006 11:50
Current meters59° 11' 45" N  39° 30' 36" W — NIOZ mooring LOCO2-4 deployment on 27/08/2006 20:10.
Current meters59° 14' 53" N  36° 34' 4" W — NIOZ mooring LOCO3-3 recovery.
Current meters59° 26' 33" N  41° 9' 34" W — RAPID mooring H (second attempt at redeployment on cruise). Deployed 29/08/2006 11:56. 2450 metres water depth.
Current meters59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Current meters59° 19' 58" N  40° 49' 15" W — RAPID mooring B. Recovered 22/08/2006 20:12
Current meters59° 26' 55" N  41° 8' 56" W — RAPID mooring H. Recovered 23/08/2006 08:42.
Current meters59° 11' 6" N  40° 21' 0" W — RAPID mooring C. Recovered 25/08/2006 09:44
Current meters59° 3' 2" N  39° 55' 8" W — RAPID mooring D. Recovered 25/08/2006 14:44
Current meters58° 52' 43" N  39° 24' 47" W — RAPID mooring E. Recovered 25/08/2006 18:01.
Current meters58° 34' 47" N  38° 30' 0" W — RAPID mooring G. Recovered 31/08/2006 23:34.
Current meters59° 47' 7" N  42° 17' 30" W — RAPID mooring F. Deployed 23/08/2006 16:05.
Current meters59° 20' 0" N  40° 49' 14" W — RAPID mooring B. Deployed 25/08/2006 06:04:40.
Current meters59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Current meters59° 3' 6" N  39° 54' 50" W — RAPID mooring D. Deployed 25/08/2006 20:35. Acoustic release failed upon deployment - no attempt to redeploy was made.
Current meters59° 27' 26" N  41° 9' 21" W — RAPID mooring H. Deployed 27/08/2006 12:58:30. Acoustic release failed - mooring surfaced.
Current profiler (eg ADCP)59° 14' 12" N  36° 23' 58" W — NIOZ mooring LOCO3-4 deployment on 01/09/2006 13:20
Current profiler (eg ADCP)59° 47' 7" N  42° 17' 30" W — RAPID mooring F. Deployed 23/08/2006 16:05.
Current profiler (eg ADCP)59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Current profiler (eg ADCP)59° 12' 11" N  39° 30' 28" W — NIOZ mooring LOCO2-3 recovery.
Current profiler (eg ADCP)59° 11' 45" N  39° 30' 36" W — NIOZ mooring LOCO2-4 deployment on 27/08/2006 20:10.
Current profiler (eg ADCP)59° 34' 19" N  42° 35' 41" W — Recovery of IFREMER mooring lander E on 26/08/2006 13:30
Current profiler (eg ADCP)59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Other physical oceanographic measurements59° 14' 12" N  36° 23' 58" W — NIOZ mooring LOCO3-4 deployment on 01/09/2006 13:20
Other physical oceanographic measurements59° 11' 45" N  39° 30' 36" W — NIOZ mooring LOCO2-4 deployment on 27/08/2006 20:10.
Other physical oceanographic measurements59° 14' 53" N  36° 34' 4" W — NIOZ mooring LOCO3-3 recovery.
Other physical oceanographic measurements59° 12' 11" N  39° 30' 28" W — NIOZ mooring LOCO2-3 recovery.
Other physical oceanographic measurements59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Other physical oceanographic measurements59° 34' 19" N  42° 35' 41" W — Recovery of IFREMER mooring lander E on 26/08/2006 13:30
Other physical oceanographic measurements59° 33' 38" N  39° 44' 42" W — Recovery of IFREMER spray glider on 24/08/2006 08:16
Other physical oceanographic measurements59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Chemical oceanography 
Carbon dioxide59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Carbon dioxide59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Phosphate59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Phosphate59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Nitrate59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Nitrate59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Nitrite59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Nitrite59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Silicate59° 40' 2" N  39° 43' 21" W — IfM GEOMAR mooring CIS06 deployed 29/08/2006 20:30.
Silicate59° 40' 0" N  39° 41' 56" W — IfM GEOMAR mooring CIS05 recovered on 29/08/2006 20:30.
Geology and geophysics 
In-situ seafloor measurement/sampling59° 14' 51" N  39° 39' 28" W — NIOZ RAPID VAMOC mooring IRM4 deployed on 28/08/2006 00:41
In-situ seafloor measurement/sampling59° 15' 23" N  39° 37' 59" W — Recovery of NIOZ RAPID VAMOC mooring IRM3.
Data held at BODC Get data
Series/Profiles 
4  Acoustic current meter
Reference numbers
Temperature of the water column
Moored instrument depth
Horizontal velocity of the water column (currents)
Date and time
[Show series]
Reference numbers
Temperature of the water column
Moored instrument depth
Horizontal velocity of the water column (currents)
Date and time
[Hide series]

BODC idDate/TimeLocationDoc.
9072172006-08-29 14:00  — 2008-09-11 08:00 59° 26' 19" N  41° 9' 20" W  View metadata report for BODC series reference number 907217
9071982006-08-25 08:00  — 2008-09-11 08:00 59° 19' 59" N  40° 49' 9" W  View metadata report for BODC series reference number 907198
9071862006-08-25 08:00  — 2008-09-11 08:00 59° 19' 59" N  40° 49' 9" W  View metadata report for BODC series reference number 907186
9072052006-08-29 14:00  — 2008-09-11 08:00 59° 26' 19" N  41° 9' 20" W  View metadata report for BODC series reference number 907205
17  Acoustic doppler current profiler
Horizontal platform movement
Metadata parameters
Horizontal spatial co-ordinates
Acoustic backscatter in the water column
Vertical velocity of the water column (currents)
Reference numbers
Raw current meter output parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time
[Show series]
Horizontal platform movement
Metadata parameters
Horizontal spatial co-ordinates
Acoustic backscatter in the water column
Vertical velocity of the water column (currents)
Reference numbers
Raw current meter output parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Date and time
[Hide series]

BODC idDate/TimeLocationDoc.
8089382006-08-29 20:03:20  — 2006-08-30 20:01:22 59° 39' 59" N  39° 42' 12" W — 59° 29' 36" N  41° 20' 11" W  View metadata report for BODC series reference number 808938
8088102006-08-18 23:03:35  — 2006-08-19 23:00:49 48° 12' 32" N  51° 38' 23" W — 52° 7' 53" N  48° 5' 37" W  View metadata report for BODC series reference number 808810
8088832006-08-24 20:03:09  — 2006-08-25 20:01:02 59° 12' 17" N  39° 31' 0" W — 59° 3' 44" N  39° 53' 11" W  View metadata report for BODC series reference number 808883
8089142006-08-27 20:05:10  — 2006-08-28 20:03:13 59° 10' 43" N  39° 30' 6" W — 59° 14' 51" N  37° 24' 39" W  View metadata report for BODC series reference number 808914
8089512006-08-30 20:03:21  — 2006-08-31 20:01:26 59° 29' 15" N  41° 19' 30" W — 58° 41' 15" N  38° 52' 26" W  View metadata report for BODC series reference number 808951
8088222006-08-19 23:02:50  — 2006-08-20 23:00:52 52° 8' 15" N  48° 5' 23" W — 55° 16' 47" N  46° 8' 56" W  View metadata report for BODC series reference number 808822
8088342006-08-21 00:02:52  — 2006-08-21 20:00:57 55° 23' 19" N  46° 4' 43" W — 58° 8' 7" N  44° 14' 46" W  View metadata report for BODC series reference number 808834
8089022006-08-26 20:03:07  — 2006-08-27 20:03:10 59° 42' 20" N  42° 23' 31" W — 59° 10' 39" N  39° 30' 4" W  View metadata report for BODC series reference number 808902
8089262006-08-28 20:05:13  — 2006-08-29 20:01:20 59° 15' 3" N  37° 26' 42" W — 59° 39' 57" N  39° 42' 22" W  View metadata report for BODC series reference number 808926
8089872006-09-02 18:03:33  — 2006-09-03 20:03:38 60° 7' 46" N  36° 57' 22" W — 62° 8' 55" N  30° 5' 45" W  View metadata report for BODC series reference number 808987
8088092006-08-18 17:03:37  — 2006-08-18 23:01:37 47° 32' 43" N  52° 34' 56" W — 48° 12' 16" N  51° 38' 46" W  View metadata report for BODC series reference number 808809
8088582006-08-22 20:03:13  — 2006-08-24 05:47:21 59° 19' 36" N  40° 49' 37" W — 59° 33' 56" N  39° 41' 53" W  View metadata report for BODC series reference number 808858
8088462006-08-21 20:02:56  — 2006-08-22 20:01 58° 8' 28" N  44° 14' 32" W — 59° 19' 37" N  40° 49' 32" W  View metadata report for BODC series reference number 808846
8088952006-08-25 20:03  — 2006-08-26 20:01:07 59° 3' 45" N  39° 53' 19" W — 59° 42' 28" N  42° 23' 28" W  View metadata report for BODC series reference number 808895
8088712006-08-24 05:47:09  — 2006-08-24 20:01:09 59° 33' 56" N  39° 41' 53" W — 59° 12' 19" N  39° 30' 56" W  View metadata report for BODC series reference number 808871
8089632006-08-31 20:03:27  — 2006-09-01 20:01:29 58° 40' 52" N  38° 51' 11" W — 59° 23' 24" N  36° 50' 54" W  View metadata report for BODC series reference number 808963
8089752006-09-01 20:03:28  — 2006-09-02 18:01:32 59° 23' 24" N  36° 50' 53" W — 60° 7' 29" N  36° 58' 19" W  View metadata report for BODC series reference number 808975
25  CTD/STD cast
Chlorophyll pigment concentrations in water bodies
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Density of the water column
Raw suspended particulate material concentration sensor output
Dissolved oxygen parameters in the water column
[Show series]
Chlorophyll pigment concentrations in water bodies
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Vertical spatial coordinates
Density of the water column
Raw suspended particulate material concentration sensor output
Dissolved oxygen parameters in the water column
[Hide series]

BODC idDate/TimeLocationDoc.
10736442006-08-20 11:33 54° 17' 40" N  46° 45' 14" W  View metadata report for BODC series reference number 1073644
10737002006-08-26 21:19 59° 44' 24" N  42° 30' 18" W  View metadata report for BODC series reference number 1073700
10738892006-09-01 18:36 59° 23' 25" N  36° 50' 27" W  View metadata report for BODC series reference number 1073889
10737732006-08-29 21:14 59° 40' 1" N  39° 43' 22" W  View metadata report for BODC series reference number 1073773
10738412006-08-31 07:39 59° 9' 49" N  40° 26' 53" W  View metadata report for BODC series reference number 1073841
10738532006-08-31 11:45 59° 3' 38" N  40° 8' 5" W  View metadata report for BODC series reference number 1073853
10737122006-08-26 23:02 59° 42' 37" N  42° 23' 46" W  View metadata report for BODC series reference number 1073712
10736812006-08-24 22:21 59° 12' 2" N  39° 33' 46" W  View metadata report for BODC series reference number 1073681
10736932006-08-26 14:23 59° 53' 50" N  43° 2' 3" W  View metadata report for BODC series reference number 1073693
10737482006-08-27 08:31 59° 34' 1" N  41° 41' 26" W  View metadata report for BODC series reference number 1073748
10738652006-08-31 23:07 58° 35' 17" N  38° 29' 58" W  View metadata report for BODC series reference number 1073865
10738902006-09-02 00:59 59° 28' 37" N  37° 36' 32" W  View metadata report for BODC series reference number 1073890
10736562006-08-24 01:16 59° 39' 22" N  39° 42' 19" W  View metadata report for BODC series reference number 1073656
10737242006-08-27 01:23 59° 40' 23" N  42° 21' 0" W  View metadata report for BODC series reference number 1073724
10738282006-08-31 03:32 59° 15' 35" N  40° 45' 1" W  View metadata report for BODC series reference number 1073828
10737852006-08-29 22:49 59° 40' 30" N  39° 44' 4" W  View metadata report for BODC series reference number 1073785
10738042006-08-30 12:41 59° 28' 47" N  41° 26' 40" W  View metadata report for BODC series reference number 1073804
10738772006-09-01 14:09 59° 14' 55" N  36° 23' 56" W  View metadata report for BODC series reference number 1073877
10736322006-08-18 17:16 47° 32' 43" N  52° 34' 56" W  View metadata report for BODC series reference number 1073632
10736682006-08-24 09:33 59° 33' 18" N  39° 45' 18" W  View metadata report for BODC series reference number 1073668
10737362006-08-27 04:39 59° 39' 30" N  42° 10' 21" W  View metadata report for BODC series reference number 1073736
10737612006-08-28 13:34 59° 17' 12" N  36° 25' 57" W  View metadata report for BODC series reference number 1073761
10737972006-08-30 09:34 59° 33' 55" N  41° 41' 49" W  View metadata report for BODC series reference number 1073797
10738162006-08-30 23:12 59° 22' 39" N  41° 6' 17" W  View metadata report for BODC series reference number 1073816
10739082006-09-02 07:49 59° 34' 37" N  38° 46' 24" W  View metadata report for BODC series reference number 1073908
2  Paddle wheel current meter
Salinity of the water column
Reference numbers
Temperature of the water column
Moored instrument depth
Horizontal velocity of the water column (currents)
Electrical conductivity of the water column
Date and time
[Show series]
Salinity of the water column
Reference numbers
Temperature of the water column
Moored instrument depth
Horizontal velocity of the water column (currents)
Electrical conductivity of the water column
Date and time
[Hide series]

BODC idDate/TimeLocationDoc.
9071742006-08-29 14:00  — 2008-09-11 08:00 59° 26' 19" N  41° 9' 20" W  View metadata report for BODC series reference number 907174
9071622006-08-25 08:00  — 2008-09-11 08:00 59° 19' 59" N  40° 49' 9" W  View metadata report for BODC series reference number 907162
Discrete samples 
25  CTD frame plus rosette samplerChlorophyll pigment concentrations in water bodies
Transmittance and attenuance of the water column
Salinity of the water column
Temperature of the water column
Density of the water column
Raw suspended particulate material concentration sensor output
Dissolved oxygen parameters in the water column
11  Instrument mooring
3  Moving Vessel Profiler instrument
35  Sample taken from ship's non-toxic supplySalinity of the water column

 

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