Deutsches Ozeanographisches
Datenzentrum
Inventur der Discovery-Reise 311 (DOD-Ref-No.20070010)
Inventory of Discovery Cruise 311 (DOD-Ref-No.20070010)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Discovery | 311 | 09.09.2006 - 05.10.2006 | ASOF-N |
Denmark Strait North Atlantic Ocean |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
Quadfasel Detlef | Institut fur Meereskunde der Universitat Hamburg | Reykjavik | Reykjavik |
Ziel der Reise / Objectives of Cruise:
The objective of the Discovery cruise D311 was to study different aspects of the Denmark Strait overflow. The first part of the cruise was concentrated to examine the water masses at the sill and the upstream conditions in the East Greenland Current and in the Iceland Sea. Two pathways of overflow water have been discovered north of Denmark Strait. One flows along the Greenland continental slope and involves waters from the Arctic Ocean, Fram Strait and the Greenland Sea. The other runs on the northwestern Iceland shelf and apparantly carries the densest overflow water. The origin of this water mass is not yet determined. Does it derive from the Iceland Sea or does it come from farther north? To resolve this question the water mass characteristics in the East Greenland Current and in the Iceland Sea will be examined by CTD observations and weater sampling involving CFCs, H3, He3, O2, O18. In addition attempts to recover moorings with ROV have be made. The first leg ended in Reykjavik, where exchange of scientific personnel took place. After the exchange Discovery continued to the Greenland slope, where the VEINS and ASOF CTD sections were be taken and the mooring array at Angmassalik recovered and redeployed. The purpose of these sections south of the sill in Denmark Strait is to study the evolution, strength and variability of the overflow plume - how the different water masses from north of the sill mix on their way to the south.
Messungen / Measurements
Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
IFMHH | Quadfasel Detlef | 25 | day(s) | D71 Current profiler (e.g. ADCP) |
RDI - Ship ADCP | no |
IFMHH | Quadfasel Detlef | 50 | stations | D71 Current profiler (e.g. ADCP) |
LADCP - on CTD+ROSETTE | no |
IFMHH | Quadfasel Detlef | 88 | stations | H09 Water bottle stations |
Different numbers of salinity- and oxygen (H21) - samples for calibration | no |
IFMHH | Quadfasel Detlef | 88 | stations | H10 CTD-Stations |
SEABIRD CTD+ROSETTE | no |
WHOI | Winsor P. | 9 | stations | H10 CTD-Stations |
Microstructure - CTD (SEABIRD) | no |
IFMHH | Quadfasel Detlef | 88 | stations | H21 Oxygen |
Different numbers of salinity- and oxygen (H21) - samples for calibration | no |
IFMHH | Quadfasel Detlef | 25 | day(s) | H71 Surface measurements underway (T, S) |
SEABIRD - Thermosalinograph | no |
LDEO | Newton Bob | 37 | stations | H90 Other chemical oceanographic measurements |
CFC, He, Tritium, O18 | no |
IFMHH | Quadfasel Detlef | 25 | day(s) | M06 Routine standard measurements |
Routine standard measurements | no |
Verankerungen / Moorings
Institut Institute |
Wissenschaftler Scientist |
Typ der Messungen Type of measurements |
Kommentar Comments |
geogr.Breite Latitude |
geogr.Länge Longitude |
Daten im DOD Data in DOD |
---|---|---|---|---|---|---|
CEFAS | Dye Stephen | D01 | F12deployed 26.09.2006 | 63° 35.0' N | 36° 40.0' W | - |
CEFAS | Dye Stephen | D01 | F12-05recovery 22.09.2206 | 63° 35.0' N | 36° 39.0' W | - |
CEFAS | Dye Stephen | D01 | G1deployed 26.09.2006 | 63° 22.0' N | 36° 4.0' W | - |
CEFAS | Dye Stephen | D01 | G1-05recovery22.09.2006 | 63° 22.0' N | 35° 4.0' W | - |
CEFAS | Dye Stephen | D01 | UK1deployed 26.09.2006 | 63° 29.0' N | 36° 18.0' W | - |
CEFAS | Dye Stephen | D01 | UK1-05recovery22.09.2006 | 63° 29.0' N | 36° 18.0' W | - |
CEFAS | Dye Stephen | D01 | UK2deployed 26.09.2006 | 63° 17.0' N | 35° 53.0' W | - |
CEFAS | Dye Stephen | D01 | UK2-05 recovery 22.09.2006 | 63° 17.0' N | 35° 52.0' W | - |
CEFAS | Dye Stephen | D71 | ADCPdeployed 25.09.2006 | 63° 1.0' N | 40° 31.0' W | - |
CEFAS | Dye Stephen | D71 | ADCPrecovery23.09.2006 | 63° 1.0' N | 40° 32.0' W | - |
IFMHH | Quadfasel Detlef | D90 | TUBE-28 deployed 23.09.2006 | 63° 0.0' N | 40° 33.0' W | - |
WHOI | Winsor P. | D90 | Glider deployed 25.09.2006 | 63° 1.0' N | 39° 39.0' W | - |
UGENT | Henriet Jean-Pierre | G08 | ROV - Test | 64° 40.0' N | 23° 14.0' W | - |