| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Polarstern | PS131 ATWAICE | 27.06.2022 - 17.08.2022 | Fram strait |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Kanzow Torsten | Alfred-Wegener-Institut fur Polar- und Meeresforschung | Bremerhaven | Bremerhaven |
Ziel der Reise / Objectives of Cruise:
The expedition PS131 ATlantic WAter pathways to the ICE in the Nansen Basin and Fram Strait (ATWAICE) addressed important goals defined in the new programme POF IV of the research field "Earth and Environment" of the Helmholtz Association with a focus on Topic 2: "Ocean and Cryosphere in Climate" and Topic 6: "Marine and Polar Life". Our work was divided into four major aims. The prime objective 1 was a multidisciplinary process study of ocean controls on sea ice melt and the couplings to biogeochemistry, biology and the atmosphere in the marginal ice zone (MIZ) north of Svalbard. Objective 2 of ATWAICE represents the continuation of the mooring-based long-term monitoring of the exchange flows in Fram Strait (as part of AWI's interdisciplinary FRAM infrastructure in the Arctic Ocean) - realizing the strong need for long-term year-round monitoring programmes at key ocean sites in order to quantify anthropogenically-introduced changes. Objective 3 targeted ocean impacts on major marine-terminating glaciers in (North)east Greenland. Objective 4 constituted a lithospheric study in the Aurora vent field at the western end of Gakkel Ridge. We were very successful with objectives 1, 2 and 4, while a fast ice area and foggy conditions at the Greenlandic coast impeded our work towards objective 3 severely.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| AWI | Niehoff Barbara | 16 | hauls | B09 Zooplankton |
MultiNet and LOKI (Lightframe On-sight Key species Investigation) | no |
| AWI | Havermans Charlotte | 25 | stations | B90 Other biological / fishery measurements |
eDNA samples from water samples | no |
| AWI | Hoppmann Mario | 64 | profiles | D71 Current profiler (e.g. ADCP) |
CTD SBE911 | no |
| UIB | Fer Ilker | 19 | profiles | D90 Other physical oceanographic measurements |
Microstructurer profiles Sea & Sun MSS90L profiler | no |
| AWI | von Appen Wilken-Jon | 7 | diving(s) | D90 Other physical oceanographic measurements |
Triaxus (Towed underwater vehicle) CTD measurement | no |
| AWI | von Appen Wilken-Jon | 42 | day(s) | D90 Other physical oceanographic measurements |
VM-ADCP RDI Ocean Surveyor 150 KHz ADCP | no |
| AWI | von Appen Wilken-Jon | 64 | profiles | D90 Other physical oceanographic measurements |
LADCP RDI 300 KHz ADCP | no |
| AWI | McPherson Rebecca | 119 | stations | H00 Stations |
- | yes |
| AWI | McPherson Rebecca | 67 | stations | H10 CTD-Stations |
Ice CTD RBR Concerto CTD | no |
| AWI | Bracher Astrid | 13 | profiles | H17 Optics (e.g. underwater light levels) |
Hyperspectral up- and downwelling radiation in the water with RAMSES radiometers and for hyperspectral total absorption and attenuation with the ACS spectrophotometer. | no |
| AWI | Torres-Valdes Sinhue | 500 | samples | H21 Oxygen |
Water samples | no |
| AWI | Torres-Valdes Sinhue | 1207 | samples | H24 Nitrates |
Water samples | no |
| MIK | Ebell Kerstin | 45 | day(s) | M02 Incident radiation |
HATPRO radiometer | no |
| AWI | Haas Christian | 7 | flight(s) | M04 Ice observations |
Sea ice thickness survey, Electromagnetic measurements by helicopter EM Bird | no |
| AWI | Haas Christian | 22 | day(s) | M04 Ice observations |
Sea ice thickness survey, Underway measurements from ship SIMS | no |
| MARUM | Spreen Gunnar | 7 | survey | M04 Ice observations |
Sea ice surface properties radiation Camera and laser scanner by helicopter | no |
| MIK | Ebell Kerstin | 46 | day(s) | M04 Ice observations |
Ice surface properties | no |
| IFT | Suja Aarun Babu | 45 | day(s) | M71 Atmospheric chemistry |
Atmospheric aerosol measurements, particle size distribution SMPS and APS | 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 |
|---|---|---|---|---|---|---|
| AWI | von Appen Wilken-Jon | D01 | EGC-7 | 78° 59.5' N | 5° 22.0' W | - |
| AWI | von Appen Wilken-Jon | D01 | F2-20 | 79° 0.6' N | 8° 20.3' E | - |
| AWI | von Appen Wilken-Jon | D01 | F3-19 | 79° 0.0' N | 8° 0.3' E | - |
| AWI | von Appen Wilken-Jon | D01 | F4-20 | 80° 0.6' N | 7° 0.6' E | - |
| AWI | von Appen Wilken-Jon | D01 | F4-OZA-2 | 79° 10.0' N | 6° 20.6' E | - |
| AWI | von Appen Wilken-Jon | D01 | F4S-5 | 79° 1.2' N | 6° 58.4' E | - |
| AWI | von Appen Wilken-Jon | D01 | F4W-3 | 79° 1.2' N | 7° 2.1' E | - |
| AWI | von Appen Wilken-Jon | D01 | F5-19 | 79° 0.0' N | 5° 40.0' E | - |
| AWI | von Appen Wilken-Jon | D01 | FEVI-42 | 79° 0.6' N | 4° 20.5' E | - |
| AWI | von Appen Wilken-Jon | D01 | SCO1-1 | 71° 17.6' N | 25° 9.4' W | - |
| AWI | von Appen Wilken-Jon | D01 | SCO2-1 | 71° 14.4' N | 25° 18.6' W | - |
| AWI | von Appen Wilken-Jon | D01 | SCO3-1 | 79° 21.4' N | 22° 0.3' W | - |