Cruise inventory

RRS Discovery DY039

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74EQ)
Cruise identifierDY039
Cruise period2015-10-17 — 2015-12-01
StatusCompleted
Port of departureSouthampton, United Kingdom
Port of returnNassau, Bahamas
PurposeResearch
ObjectivesThe objective of cruise DY039 was to service the moorings of the RAPID 26°N project that are deployed to monitor the Atlantic Meridional Overturning Circulation. For each mooring instruments were recovered, data were downloaded and instruments were redeployed. A number of CTDs were made to calibrate the instruments from the moorings.

In addition to the standard instruments used in previous years on the RAPID array, biogeochemical instruments were deployed for the ABC Fluxes project, along with some additional temperature sensors and ADCPs for the MerMeed project.

During passage from Southampton to Tenerife trial CTDs were completed in international waters. After a short port call in Santa Cruz de Tenerife, departing on the 26th October work commenced on the eastern boundary sub-array comprising of moorings EBH4, EBH4L, EBH3, EBH2, EBH1, EBH1L, EBHi, EB1 and EB1L. A lander was deployed alongside EBHi to provide delayed-mode data telemetry through timed data pod release.

Work on the MAR sub-array commenced on 7th November at mooring MAR3. The other moorings in this sub-array (MAR3L, MAR1, MAR1L, MAR2 and MAR0) were all completed by 12th November. The NOG mooring was also recovered and redeployed as part of the MAR sub-array servicing.

Mooring WB6 was serviced on 19th November before transiting to Nassau for customs clearance. The remaining western boundary sub-array moorings (WBADCP, WBAL, WB1, WB2, WB2L, WBH2, WB4 and WB4L) were serviced between the 22nd November and the 30th November before docking in Nassau on the 1st December.
Chief scientistDarren Rayner (National Oceanography Centre, Southampton)
ProjectRapid Climate Change Programme
Cruise reportRRS Discovery DY039 cruise report dy039.pdf — access key 'C' (130.92 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
SpecificSubtropical north Atlantic
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 45
Description: Continuous underway measurements
Water bottle stationsQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
CTD stationsQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
Transparency (eg transmissometer)Quantity: activity duration in days = 45
Description: Continuous underway measurements
Chemical oceanography 
OxygenQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
Carbon dioxideQuantity: activity duration in days = 45
Description: Continuous underway measurements
Total - PQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
NitriteQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
AlkalinityQuantity: number of stations = 25
Description: CTD profiles from ship with oxygen sensor present throughout. In addition to the standard sampling for salinity and oxygen calibration of the sensors some casts had samples taken for later analysis of nutrients and total alkalinity.
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 45
Description: Continuous underway measurements
Meteorology 
Incident radiationQuantity: activity duration in days = 45
Description: Continuous underway meteorology measurements
Other meteorological measurementsQuantity: activity duration in days = 45
Description: Continuous underway meteorology measurements
Geology and geophysics 
Single-beam echosoundingQuantity: activity duration in days = 45
Description: Continuous underway measurements
Multi-beam echosoundingQuantity: activity duration in days = 45
Description: Continuous underway measurements
Moorings, landers, buoys 
Physical oceanography 
Current meters26° 30' 0" N  70° 31' 0" W — Mooring WB6. Recovered 19/11/2015
Current meters26° 30' 0" N  76° 49' 0" W — Mooring WB1. Recovered 29/11/2015
Current meters23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Current meters24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Current meters26° 28' 59" N  75° 42' 0" W — Mooring WB4. Deployed 22/11/2015, 21:52
Current meters24° 10' 59" N  49° 46' 0" W — Mooring MAR2. Recovered 12/11/2015
Current meters27° 51' 0" N  13° 31' 59" W — Mooring EBH4. Recovered 27/10/2015
Current meters27° 37' 0" N  14° 13' 0" W — Mooring EBH2. Recovered 28/10/2015
Current meters24° 55' 59" N  21° 16' 0" W — Mooring EBHi. Recovered 31/10/2015
Current meters26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Current meters27° 48' 0" N  13° 45' 0" W — Mooring EBH3. Recovered 27/10/2015
Current meters27° 13' 0" N  15° 25' 0" W — Mooring EBH1. Recovered 29/10/2015
Current meters23° 46' 0" N  41° 6' 0" W — Mooring NOG. Recovered 09/11/2015
Current meters26° 31' 0" N  76° 43' 59" W — Mooring WB2. Recovered 29/11/2015
Current meters27° 48' 0" N  13° 45' 0" W — Mooring EBH3. Deployed 27/10/2015, 13:59
Current meters27° 51' 0" N  13° 31' 59" W — Mooring EBH4. Deployed 28/10/2015, 09:41
Current meters27° 37' 0" N  14° 13' 0" W — Mooring EBH2. Deployed 28/10/2015, 18:23
Current meters27° 13' 0" N  15° 25' 0" W — Mooring EBH1. Deployed 29/10/2015, 12:21
Current meters24° 55' 59" N  21° 16' 0" W — Mooring EBHi. Deployed 31/10/2015, 11:37
Current meters24° 55' 59" N  21° 16' 0" W — Mooring EBHiM. Deployed 31/10/2015, 13:54
Current meters23° 52' 0" N  41° 4' 59" W — Mooring MAR3. Deployed 08/11/2015, 15:13
Current meters25° 7' 59" N  52° 1' 0" W — Mooring MAR0. Deployed 13/11/2015, 21:47
Current meters26° 30' 0" N  70° 31' 0" W — Mooring WB6. Deployed 19/11/2015, 21:05
Current meters26° 31' 0" N  76° 43' 59" W — Mooring WB2. Deployed 30/11/2015, 14:56
Current meters23° 45' 0" N  41° 6' 0" W — Mooring NOG. Deployed 09/11/2015, 15:39
Current meters26° 28' 59" N  75° 42' 0" W — Mooring WB4. Recovered 22/11/2015
Current meters26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Recovered 23/11/2015
Current meters25° 7' 59" N  52° 1' 59" W — Mooring MAR0. Recovered 13/11/2015
Current meters24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Recovered 11/11/2015
Current meters23° 52' 0" N  41° 6' 0" W — Mooring MAR3. Recovered 07/11/2015
Current meters23° 45' 0" N  24° 10' 0" W — Mooring EB1. Recovered 02/11/2015
Current profiler (eg ADCP)26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Current profiler (eg ADCP)26° 31' 59" N  76° 52' 0" W — Mooring WBADCP. Recovered 24/11/2015
Current profiler (eg ADCP)26° 31' 59" N  76° 52' 0" W — Mooring WBADCP. Deployed 24/11/2015, 20:07
Current profiler (eg ADCP)26° 28' 59" N  75° 42' 0" W — Mooring WB4. Deployed 22/11/2015, 21:52
Sea level (inc. bot. press., inverted echosounder)26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Sea level (inc. bot. press., inverted echosounder)27° 52' 0" N  13° 31' 0" W — Mooring EBH4L4. Recovered 28/10/2015
Sea level (inc. bot. press., inverted echosounder)26° 30' 0" N  76° 43' 59" W — Mooring WB2L11. Deployed 24/11/2015, 18:00
Sea level (inc. bot. press., inverted echosounder)27° 13' 0" N  15° 24' 0" W — Mooring EBH1L9. Recovered 29/10/2015
Sea level (inc. bot. press., inverted echosounder)26° 28' 0" N  75° 42' 0" W — Mooring WB4L9. Recovered 23/11/2015
Sea level (inc. bot. press., inverted echosounder)23° 48' 0" N  24° 7' 0" W — Mooring EB1L11. Deployed 03/11/2015, 15:37
Sea level (inc. bot. press., inverted echosounder)23° 51' 0" N  41° 6' 0" W — Mooring MAR3L8. Recovered 07/11/2015
Sea level (inc. bot. press., inverted echosounder)26° 30' 0" N  76° 43' 59" W — Mooring WB2L9. Recovered 24/11/2015
Sea level (inc. bot. press., inverted echosounder)24° 11' 59" N  49° 43' 0" W — Mooring MAR1L8. Recovered 11/11/2015
Sea level (inc. bot. press., inverted echosounder)27° 52' 59" N  13° 31' 0" W — Mooring EBH4L6. Deployed 28/10/2015, 10:28
Sea level (inc. bot. press., inverted echosounder)27° 13' 0" N  15° 25' 59" W — Mooring EBH1L11. Deployed 29/10/2015, 12:49
Sea level (inc. bot. press., inverted echosounder)23° 51' 0" N  41° 6' 0" W — Mooring MAR3L10. Deployed 08/11/2015, 15:54
Sea level (inc. bot. press., inverted echosounder)24° 10' 59" N  49° 43' 59" W — Mooring MAR1L10. Deployed 12/11/2015, 18:43
Sea level (inc. bot. press., inverted echosounder)26° 28' 0" N  75° 42' 0" W — Mooring WB4L11. Deployed 23/11/2015, 13:07
Sea level (inc. bot. press., inverted echosounder)26° 31' 59" N  76° 52' 0" W — Mooring WBAL6. Deployed 24/11/2015, 20:32
Other physical oceanographic measurements26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Other physical oceanographic measurements26° 30' 0" N  70° 31' 0" W — Mooring WB6. Recovered 19/11/2015
Other physical oceanographic measurements24° 10' 59" N  49° 46' 0" W — Mooring MAR2. Recovered 12/11/2015
Other physical oceanographic measurements27° 52' 0" N  13° 31' 0" W — Mooring EBH4L4. Recovered 28/10/2015
Other physical oceanographic measurements23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Other physical oceanographic measurements24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Other physical oceanographic measurements26° 28' 59" N  75° 42' 0" W — Mooring WB4. Deployed 22/11/2015, 21:52
Other physical oceanographic measurements26° 30' 0" N  76° 43' 59" W — Mooring WB2L11. Deployed 24/11/2015, 18:00
Other physical oceanographic measurements26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Other physical oceanographic measurements27° 48' 0" N  13° 45' 0" W — Mooring EBH3. Recovered 27/10/2015
Other physical oceanographic measurements27° 13' 0" N  15° 24' 0" W — Mooring EBH1L9. Recovered 29/10/2015
Other physical oceanographic measurements26° 28' 0" N  75° 42' 0" W — Mooring WB4L9. Recovered 23/11/2015
Other physical oceanographic measurements23° 48' 0" N  24° 7' 0" W — Mooring EB1L11. Deployed 03/11/2015, 15:37
Other physical oceanographic measurements27° 13' 0" N  15° 25' 0" W — Mooring EBH1. Recovered 29/10/2015
Other physical oceanographic measurements23° 51' 0" N  41° 6' 0" W — Mooring MAR3L8. Recovered 07/11/2015
Other physical oceanographic measurements26° 30' 0" N  76° 43' 59" W — Mooring WB2L9. Recovered 24/11/2015
Other physical oceanographic measurements23° 46' 0" N  41° 6' 0" W — Mooring NOG. Recovered 09/11/2015
Other physical oceanographic measurements26° 31' 0" N  76° 43' 59" W — Mooring WB2. Recovered 29/11/2015
Other physical oceanographic measurements24° 11' 59" N  49° 43' 0" W — Mooring MAR1L8. Recovered 11/11/2015
Other physical oceanographic measurements27° 48' 0" N  13° 45' 0" W — Mooring EBH3. Deployed 27/10/2015, 13:59
Other physical oceanographic measurements27° 51' 0" N  13° 31' 59" W — Mooring EBH4. Deployed 28/10/2015, 09:41
Other physical oceanographic measurements27° 52' 59" N  13° 31' 0" W — Mooring EBH4L6. Deployed 28/10/2015, 10:28
Other physical oceanographic measurements27° 37' 0" N  14° 13' 0" W — Mooring EBH2. Deployed 28/10/2015, 18:23
Other physical oceanographic measurements27° 13' 0" N  15° 25' 0" W — Mooring EBH1. Deployed 29/10/2015, 12:21
Other physical oceanographic measurements27° 13' 0" N  15° 25' 59" W — Mooring EBH1L11. Deployed 29/10/2015, 12:49
Other physical oceanographic measurements24° 55' 59" N  21° 16' 0" W — Mooring EBHi. Deployed 31/10/2015, 11:37
Other physical oceanographic measurements24° 55' 59" N  21° 16' 0" W — Mooring EBHiM. Deployed 31/10/2015, 13:54
Other physical oceanographic measurements23° 52' 0" N  41° 4' 59" W — Mooring MAR3. Deployed 08/11/2015, 15:13
Other physical oceanographic measurements23° 51' 0" N  41° 6' 0" W — Mooring MAR3L10. Deployed 08/11/2015, 15:54
Other physical oceanographic measurements24° 10' 59" N  49° 43' 59" W — Mooring MAR1L10. Deployed 12/11/2015, 18:43
Other physical oceanographic measurements25° 7' 59" N  52° 1' 0" W — Mooring MAR0. Deployed 13/11/2015, 21:47
Other physical oceanographic measurements26° 30' 0" N  70° 31' 0" W — Mooring WB6. Deployed 19/11/2015, 21:05
Other physical oceanographic measurements26° 28' 0" N  75° 42' 0" W — Mooring WB4L11. Deployed 23/11/2015, 13:07
Other physical oceanographic measurements26° 31' 59" N  76° 52' 0" W — Mooring WBAL6. Deployed 24/11/2015, 20:32
Other physical oceanographic measurements26° 31' 0" N  76° 43' 59" W — Mooring WB2. Deployed 30/11/2015, 14:56
Other physical oceanographic measurements23° 45' 0" N  41° 6' 0" W — Mooring NOG. Deployed 09/11/2015, 15:39
Other physical oceanographic measurements26° 28' 59" N  75° 42' 0" W — Mooring WB4. Recovered 22/11/2015
Other physical oceanographic measurements26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Recovered 23/11/2015
Other physical oceanographic measurements25° 7' 59" N  52° 1' 59" W — Mooring MAR0. Recovered 13/11/2015
Other physical oceanographic measurements24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Recovered 11/11/2015
Other physical oceanographic measurements23° 52' 0" N  41° 6' 0" W — Mooring MAR3. Recovered 07/11/2015
Other physical oceanographic measurements23° 45' 0" N  24° 10' 0" W — Mooring EB1. Recovered 02/11/2015
Other physical oceanographic measurements24° 55' 59" N  21° 16' 0" W — Mooring EBHi. Recovered 31/10/2015
Other physical oceanographic measurements27° 37' 0" N  14° 13' 0" W — Mooring EBH2. Recovered 28/10/2015
Other physical oceanographic measurements27° 51' 0" N  13° 31' 59" W — Mooring EBH4. Recovered 27/10/2015
Other physical oceanographic measurements26° 30' 0" N  76° 49' 0" W — Mooring WB1. Recovered 29/11/2015
Chemical oceanography 
Oxygen26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Oxygen23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Oxygen24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Oxygen26° 28' 59" N  75° 42' 0" W — Mooring WB4. Deployed 22/11/2015, 21:52
Oxygen26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Oxygen26° 28' 59" N  75° 42' 0" W — Mooring WB4. Recovered 22/11/2015
Oxygen26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Recovered 23/11/2015
Oxygen26° 30' 0" N  76° 49' 0" W — Mooring WB1. Recovered 29/11/2015
Carbon dioxide23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Carbon dioxide24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Carbon dioxide26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Total - P26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Total - P23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Total - P24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Total - P26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Total - N26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Total - N23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Total - N24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Total - N26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Alkalinity26° 28' 59" N  76° 37' 59" W — Mooring WBH2. Deployed 24/11/2015, 14:58
Alkalinity23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
Alkalinity24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
Alkalinity26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
pH23° 45' 0" N  24° 10' 0" W — Mooring EB1. Deployed 03/11/2015, 14:46
pH24° 10' 0" N  49° 45' 0" W — Mooring MAR1. Deployed 12/11/2015, 17:54
pH26° 30' 0" N  76° 49' 0" W — Mooring WB1. Deployed 30/11/2015, 18:07
Biology and fisheries 
Sediment traps23° 46' 0" N  41° 6' 0" W — Mooring NOG. Recovered 09/11/2015
Sediment traps23° 45' 0" N  41° 6' 0" W — Mooring NOG. Deployed 09/11/2015, 15:39