Cruise inventory

RRS James Clark Ross JR20040813 (JR106)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20040813 (JR106)
Cruise period2004-08-10 — 2004-08-30
StatusCompleted
Port of departureReykjavík, Iceland
Port of returnÍsafjörður, Iceland
ObjectivesTo obtain ice thickness distributions from the upward-looking swath sonar system aboard Autosub, to validate the thickness values against other data collected simultaneously from the surface and the air, and to conduct transects across and within Fram Strait so as to obtain estimates of ice flux. An important aspect of the cruise also was the development of operating methods which are suitable for ice-covered waters.
Chief scientistPeter Wadhams (University of Cambridge Department of Applied Mathematics and Theoretical Physics)
ProjectAutosub under Arctic Sea Ice
Coordinating bodyNERC
Cruise reportRRS James Clark Ross JR20040813 (JR106) cruise report jr106a.pdf — access key 'C' (3.49 MB) 
Ocean/sea areas 
GeneralGreenland Sea
Arctic Ocean
SpecificEast Greenland- Fram strait and Belgica ban
Measurements 
Physical oceanography 
BathythermographQuantity: number of stations = 8
Description: XBT stations
CTD stationsQuantity: number of dives = 11
Description: AUTOSUB Seabird 911 CTD system.
CTD stationsQuantity: number of stations = 20
Description: CTD casts, including pressure, oxygen, altimeter, OBS and transmissometer readings
Current profiler (eg ADCP)Quantity: number of stations = 20
Description: Upward and downward looking lowered ADCPs.
Current profiler (eg ADCP)Quantity: activity duration in days = 18
Description: Continuous along-track vessel mounted RDI 150kHz ADCP measurements.
Current profiler (eg ADCP)Quantity: number of dives = 11
Description: AUTOSUB RDI 150kHz downward looking and RDI 300kHz upward looking ADCPs
Sea level (inc. bot. press., inverted echosounder)Quantity: number of dives = 11
Description: AUTOSUB Kongsberg EM2000 multibeam upward looking swath system.
Other physical oceanographic measurementsQuantity: activity duration in days = 11
Description: Sea-ice watch describing total concentration, open water distance between ice floes, and type of ice, ice thickness, floe size, ice topography, snow type and snow thickness.
Other physical oceanographic measurementsQuantity: number of stations = 3
Description: Sea ice-validation programme - including: drilling, coring EM31 electromagnetic sounding system, snow probe and satellite data.
Biology and fisheries 
PhytoplanktonQuantity: activity duration in days = 18
Description: Continuous plankton recorder
ZooplanktonQuantity: activity duration in days = 18
Description: Continuous plankton recorder
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 18
Description: Continuous along track TOPAS sub-bottom profiler.
Multi-beam echosoundingQuantity: activity duration in days = 18
Description: Continuous along-track EM-120 multi-beam swath bathymetry.
Data held at BODC 
Series/Profiles 
3  Acoustic doppler current profiler
Acoustic backscatter in the water column
Vertical velocity of the water column (currents)
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Horizontal spatial co-ordinates
Date and time
Acoustic backscatter in the water column
Vertical velocity of the water column (currents)
Metadata parameters
Vertical spatial coordinates
Horizontal velocity of the water column (currents)
Horizontal spatial co-ordinates
Date and time

BODC idDate/TimeLocationDoc.
6483852004-08-13 15:22:34  — 2004-08-16 23:55:18 64° 9' 0" N  25° 0' 37" W — 77° 13' 20" N  6° 24' 29" W  View metadata report for BODC series reference number 648385
6483972004-08-17 00:00:18  — 2004-08-27 23:55:14 75° 51' 43" N  14° 25' 8" W — 80° 38' 43" N  0° 48' 19" E  View metadata report for BODC series reference number 648397
6484042004-08-28 00:00:15  — 2004-08-29 10:25:24 69° 37' 31" N  18° 16' 11" W — 75° 50' 41" N  7° 42' 15" W  View metadata report for BODC series reference number 648404
8  Bathythermograph (MBT/XBT)
Sound velocity and travel time in the water column
Vertical spatial coordinates
Temperature of the water column
Reference numbers
Sound velocity and travel time in the water column
Vertical spatial coordinates
Temperature of the water column
Reference numbers

BODC idDate/TimeLocationDoc.
9556372004-08-14 14:32 67° 32' 3" N  22° 49' 10" W  View metadata report for BODC series reference number 955637
9556492004-08-15 10:38 70° 37' 0" N  15° 40' 10" W  View metadata report for BODC series reference number 955649
9556502004-08-15 19:23 71° 55' 21" N  12° 17' 0" W  View metadata report for BODC series reference number 955650
9556622004-08-16 18:07 76° 15' 39" N  7° 0' 16" W  View metadata report for BODC series reference number 955662
9556742004-08-18 10:27 78° 38' 18" N  0° 28' 44" E  View metadata report for BODC series reference number 955674
9556862004-08-18 16:15 78° 49' 44" N  4° 13' 25" W  View metadata report for BODC series reference number 955686
9556982004-08-21 21:10 79° 29' 31" N  14° 11' 24" W  View metadata report for BODC series reference number 955698
9557052004-08-23 18:50 80° 21' 56" N  13° 23' 12" W  View metadata report for BODC series reference number 955705
10  CTD in towed or autonomous underwater vehicle
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Reference numbers
Date and time
Dissolved oxygen parameters in the water column
Density of the water column
Vertical spatial coordinates
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Reference numbers
Date and time
Dissolved oxygen parameters in the water column

BODC idDate/TimeLocationDoc.
6677522004-08-17 09:44:36  — 2004-08-17 10:29:58 77° 37' 8" N  3° 7' 4" W — 77° 37' 8" N  3° 6' 54" W  View metadata report for BODC series reference number 667752
6677642004-08-17 18:45:51  — 2004-08-18 01:00:45 77° 37' 2" N  3° 34' 48" W — 77° 35' 17" N  3° 6' 53" W  View metadata report for BODC series reference number 667764
6677762004-08-18 22:14:05  — 2004-08-19 00:37:01 78° 50' 41" N  6° 25' 15" W — 78° 50' 43" N  6° 25' 0" W  View metadata report for BODC series reference number 667776
6677882004-08-19 20:02:13  — 2004-08-19 22:52:27 79° 24' 1" N  9° 54' 3" W — 79° 23' 50" N  9° 54' 17" W  View metadata report for BODC series reference number 667788
6678072004-08-20 13:46:01  — 2004-08-20 22:20:55 79° 29' 58" N  14° 23' 16" W — 79° 29' 47" N  14° 20' 13" W  View metadata report for BODC series reference number 667807
6678192004-08-20 23:56:45  — 2004-08-21 08:42:43 79° 29' 51" N  14° 20' 1" W — 79° 30' 6" N  14° 20' 56" W  View metadata report for BODC series reference number 667819
6678202004-08-21 18:39:18  — 2004-08-22 20:37:26 79° 29' 59" N  14° 20' 10" W — 79° 30' 53" N  14° 7' 42" W  View metadata report for BODC series reference number 667820
6678322004-08-23 14:26:32  — 2004-08-24 03:36 80° 16' 3" N  13° 5' 58" W — 80° 16' 46" N  12° 59' 54" W  View metadata report for BODC series reference number 667832
6678442004-08-25 06:05:05  — 2004-08-26 04:35:03 79° 20' 41" N  13° 50' 50" W — 79° 20' 53" N  13° 51' 2" W  View metadata report for BODC series reference number 667844
6678562004-08-26 09:23:58  — 2004-08-26 12:37:28 79° 20' 35" N  13° 50' 47" W — 79° 21' 10" N  13° 52' 17" W  View metadata report for BODC series reference number 667856
1  Meteorological data logger
Air pressure
Solar Radiation
Wind strength and direction
Atmospheric humidity
Horizontal spatial co-ordinates
Date and time
Air temperature
Visible waveband radiance and irradiance measurements in the atmosphere
Air pressure
Solar Radiation
Wind strength and direction
Atmospheric humidity
Horizontal spatial co-ordinates
Date and time
Air temperature
Visible waveband radiance and irradiance measurements in the atmosphere

BODC idDate/TimeLocationDoc.
10128342004-08-12 08:19:30  — 2004-08-30 10:00 64° 9' 0" N  25° 0' 37" W — 80° 38' 43" N  0° 48' 20" E  View metadata report for BODC series reference number 1012834
1  Ship's non-toxic supply
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Metadata parameters
Sound velocity and travel time in the water column
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Date and time
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Metadata parameters
Sound velocity and travel time in the water column
Salinity of the water column
Horizontal spatial co-ordinates
Temperature of the water column
Date and time

BODC idDate/TimeLocationDoc.
10128222004-08-12 08:19:30  — 2004-08-30 10:00 64° 9' 0" N  25° 0' 37" W — 80° 38' 43" N  0° 48' 20" E  View metadata report for BODC series reference number 1012822
1  Single-beam echosounder
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Horizontal spatial co-ordinates
Date and time

BODC idDate/TimeLocationDoc.
10128462004-08-12 08:19:30  — 2004-08-30 10:00 64° 9' 0" N  25° 0' 37" W — 80° 38' 43" N  0° 48' 20" E  View metadata report for BODC series reference number 1012846
Discrete samples 
20  CTD frame plus rosette samplerRaw suspended particulate material concentration sensor output
Density of the water column
Transmittance and attenuance of the water column
Electrical conductivity of the water column
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
9  Motorised ice-corer drilling down into iceSnow and ice mass, thickness and extent
Horizontal spatial co-ordinates