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Cruise reports

[30.01.2013]

Overview of the cruises: Dec. 2011-Nov.2012

This document lists the cruises undertaken in the last period of the THOR project and provides links to all detailed reports. The document is an integral part of the last report to the Commission on the activities implemented during the 3rd (and final) period of the project. Download the Word file

Cruises listed in the document: MSM 21/1 A, MSM 21/1 B, POS 437-1, POS 437-2, Discovery D379, RB1201,Di382, MH1202, MH1224, MH1220, MH1234, MH1236, M85/2, B10-2011, B2-2012, B5-2012, B9-2012, 64PE358, Cruise 1611S,Cruise 1312S

Institutions in charge: UHAM, NERC, HAV, SAMS and subcontractor, MRI, NIOZ, GEOMAR, FMI, SIO, CEFAS

[30.11.2012]

RV Pelagia Shipboard Report (24 July- 19 August 2012)

Cruise number: 64PE358
Goals: (a) to sample hydrographic stations in the framework of the GEOTRACES programme and (b) to recover, service, and redeploy the LOCO2 mooring in the central Irminger Sea in the framework of the THOR programme. 7 days of ship time were attributed to the THOR part (station time and transit). Additional activities during a multi-purpose geochemical cruise with RV Pelagia.
Organization: NIOZ
Activities undertaken: Recovery mooring LOCO2-9, data from the recovered instruments uploaded to on board computers, servicing of instruments, deployment of mooring LOCO2-10, CTD cast for calibration of the mooring T-S sensors, and to extend the reference data set for the central Irminger Sea.

Cruise report and track: download here PDF

RV Pelagia on Facebook

[20.9.2011]

RV Pelagia Shipboard Report (24 July- 8 August 2011)

The research cruise 64PE342 of RV Pelagia was carried out by THOR partner NIOZ (Royal Netherlands Institute for Sea Research).

Goals: The re-survey of former WOCE Hydrographic Program Repeat Section
A1/AR7E between Ireland and the recovery and redeployment of a long term
mooring in the Irminger Sea as part of the EU THOR programme.

Chief Scientist: Hendrik M. van Aken

The Cruise Report is now available to download 

To cruise website

[20.9.2011]

RV METEOR Cruise M85-2 St. John's Reykjavik Summary cruise report (5 -25 August 2011)

The Meteor M85/2 expedition was carried out jointly by the IFM-GEOMAR at the University of Kiel and the Institut für Meereskunde at the KlimaCampus of the University of Hamburg. The main objectives of the cruise were related to studies on water mass transformation processes and transports in the northern North Atlantic.

Chief Scientist: Johannes Karstensen

Captain: Michael Schneider

The cruise report is now available to download 

[6.12.2010]

Faroe Bank Channel Overflow still goes strong

New technical reports on ADCP deployments in Faroe Bank Channel (FBC) are released from Faroe Marine Research Institute (HAV). The reports document nine ADCP deployments in Faroese waters in 2008-2009 and 2009-2010 respectively. Aanderaa Current Meters are included in two, and Microcats in two of the
deployments. Each deployment is identified by an 8-character label where the first four characters indicate the site while the last characters show year and month of deployment. Most of the moorings were located at standard (Nordic WOCE) sites... click on the report to view more details:

TecRep 2009-2010    |     TeRep 2008-2009

 

 

M82-1 cruise report METEOR (2 July-2 August 2010)

Click on the track to read the weekly briefing (in German only)

18-19 June 2010, Open-Ship in Hamburg
Planned cruise tracks and working areas of METEOR M 82

M82 Cruise METEO: two legs

METEOR cruise M82 consists of two legs to be carried out in the subpolar North Atlantic dealing with the circulation and transport variations of deep water, as well as one leg focusing on the hydrothermal system at the Mid-Atlantic Ridge near the Azores. (fig. 1) Processes to be investigated are related to different disciplines of marine sciences such as physical and chemical oceanography, biogeochemistry, hydrothermal processes, petrology, chemistry of fluids and microbial ecology.

Leg M 82/1 (2 July-2 August 2010)

The overflow water flowing across the Greenland-Scotland Ridge sinks south of the sill down to depths of approximately 3000 m. Thereby, less dense ambient water is mixed into the sinking overflow plume, by small scale processes and vortex formation, approximately doubling its volume transport. During the first part of this cruise leg the long term observations of the overflow volume transport with moorings will be extended; in the Denmark Strait itself and also 500 km further south off Angmassalik. Other programme points are small scale mixing studies and the exchange of moorings in the southern Irminger Sea, which are used to estimate the water mass formation and transformation there.

About one third of the North Atlantic Deep water is formed in the Labrador Sea. The variability of the production rate and of the export are linked to the Meridional Overturning Circulation (MOC) and short time scale variabilities are not de-coupled by topographically barriers. In order to determine the fluctuations of this contribution to the thermohaline circulation it is important to continuously measure the formation and export rates of the Labrador Sea Water (LSW). Core activities during the second part of this leg are therefore detailed CTDO2 station work accompanied by current observations on station (lowered ADCP) and underway (shipboard ADCP) as well as the exchange of moorings in the boundary current at the Labrador shelf break and in the convection area in the central Labrador Sea. This is a continuous activity (since 1996) providing long time series of water mass transformation and export.
Fig. 2: Bold lines indicate CTDO2-lADCP sections. Points show the positions of moorings to be serviced

Download the cruise brochure

More information on the cruise: http://www.ifm.zmaw.de/de

RV Pelagia (22 September - 15 October 2009)

The research cruise 64PE312 of RV Pelagia was carreid out by THOR partner NIOZ (Royal Netherlands Institute for Sea Research) surveying the AR7E section from Greenland to Ireland, including servicing a mooring in the central Irminger Sea. The Cruise Report is now available to download 

To cruise website

FRV Scotia (1-20 October 2009)

The FRV Scotia is a research vessel of Marine Scotland, formerly the Scottish Fisheries Research Services.  Some of the work to be undertaken during the trip feeds into THOR WP 3 "Observation of the North Atlantic THC" and will be jointly carried out by THOR's subcontractor Marine Scotland, partners SAMS UK and KNMI Netherlands.
Click here to view the trip blog
...

 

MSM12-1 Cruise Report on RV MARIA S. MERIAN

13 July 2009

In the present state of our climate the northern North Atlantic is one of the major sources for the deep waters of the World Oceans and thus influences or even determines the global deep ocean circulation. Dense water from the Nordic Seas and the Labrador Sea move southward at depth and is replenished near the surface by a northward flow of warm water. During RV MARIA S MERIAN cruise MSM12-1 we studied the three major sources of North Atlantic Deep Water: the overflow through Denmark Strait, the
entrainment of ambient waters into the overflow plume and the production and export of deep water from the Labrador Sea... read more

Posters on research results can be viewed here

 

THOR on tour 

MARIA S. MERIAN | 13 May 2009-15 June 2009  |   |

Leg MSM12/1 | During the cruise (Ponta Delgada-Reykjavik) the research team led by Professor Detleft Quadfasel from the Institute of Oceanography of University of Hamburg plans to study three major sources of North Atlantic Deep Water: the production and export of deep water from the Labrador Sea, the Overflow through Denmark Strait and the environment of ambient waters into the overflow plume. The work focuses on the recovery and redeployment of long-term current meter moornings, but synoptic hydrographic work is done as well. The major part of this research tour is funded by the North Atlantic project of the Ministry of Science and Technology in Germany and the EU project THOR.

The weekly briefing (German version only) on MSM 12/1 Pt. Delgada - Reykjavik is now available to download:

Test
05-1105-18 05-25
06-0206-09 06-15

Click here to read more about Maria S. Merian Cruise. The scientific programme of Leg MSM 12 can be viewed in page 13-16.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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