Deutsches Ozeanographisches
Datenzentrum
Inventur der Polarstern-Reise PS114 (DOD-Ref-No.20180004)
Inventory of Polarstern Cruise PS114 (DOD-Ref-No.20180004)
Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
---|---|---|---|---|
Polarstern | PS114 | 10.07.2018 - 03.08.2018 | TIEFSEE-OBSERVATORIUM HAUSGARTEN |
Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
---|---|---|---|---|---|
von Appen Wilken-Jon | Alfred-Wegener-Institut fur Polar- und Meeresforschung | Bremerhaven | Troms? |
Ziel der Reise / Objectives of Cruise:
On July 16th, Polarstern arrived in the working area: Fram Strait between Svalbard and Greenland. In detail, on July 16th three moorings were recovered at the Hausgarten Central (HG4) station followed by full a biological station with 4 CTDs (deep, shallow, 2 water collections for incubations), multinet, LOKI, TVMUC during the night. On July 17th three moorings were deployed at the Hausgarten Central station followed by station sampling at the HG-S3 station during the night. On July 18th, two moorings were recovered at the F4 station on the western side of the West Spitsbergen Current followed by station sampling (including water for incubations) at F4 and a low resolution CTD section across the West Spitsbergen Current. On July 19th, three moorings were deployed at the F4 station followed a transit to the prime meridian and the beginning of a CTD section along the prime meridian. On July 20th moorings R1 and R2 on the prime meridian at 78?10'N respectively 78?50'N were recovered combined with LOKI and deep CTD casts at the mooring locations. On July 21st sea-ice was encountered for the first time as mooring R3 on the prime meridian at 79?30'N was recovered followed by a transit to the Hausgarten North area during the night and CTD, TVMUC, and an OFOS transect at HG-N5. On July 22nd, a mooring was recovered and deployed at HG-N4 followed by CTD and TVMUC and then CTD and TVMUC at HG-N3 during the night. On July 23rd, the work at HG-N3 was finished with an OFOS transect and then a transit north into heavy pack ice started. During the early hours of July 24th, the northern most location of the cruise at 81?10'N was reached with a continuation of the CTD section along the prime meridian. Throughout the day, the ship had to wait for favorable ice conditions in order to recover mooring R5 on the prime meridian at 80?50'N; also water for incubations was collected. On July 25th similarly challenging ice conditions were encountered during the recovery of mooring R4 at 80?10'N. The CTD section with LOKI and deep CTDs at the moorings along the prime meridian was then concluded overnight with one station missing. On July 26th, a mooring at HG-EG4 was recovered followed by snow collection by zodiac and station sampling plus OFOS transect. During the night a TVMUC only at HG-EG2 (HG-EG3 had to be skipped) was collected. On July 27th a mooring was deployed at HG-EG1 together with large station sampling including water for incubations and snow recovery by mummy chair. Satellite products indicated that the fast ice situation in the vicinity of the 79North Glacier was extremely unfavorable. Regardless, it was decided to attempt a minimal program there resulting in a transit to the Greenland coast overnight. July 28th started with heavy fog, but the fog lifted and satellite products indicated that a big ice floe of previous fast ice had moved just enough to probably make mooring recoveries in Westwind Trough at approximately 79?40'N possible. With flight conditions in the afternoon snow could be recovered by helicopter and ice reconnaissance showed that three moorings could be recovered, which was done during the afternoon and evening followed by water column station work. The ice reconnaissance however also indicated that mooring 79N2 1km from the calving front of the 79North Glacier was 20km into fast ice resulting in the decision to not invest a disproportionate amount of ship time to possibly recover and redeploy it. July 29th was taken up by transit including snow recovery by mummy chair. On July 30th three moorings at the mouth of Norske Trough along 10?W were recovered followed by a CTD section across the shelfbreak into the Greenland Sea. On July 31st the final mooring of PS114 on the continental slope was recovered and the CTD section was finished before the scientific work of PS114 was concluded by a deep CTD in the Greenland Sea.
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 | von Appen Wilken-Jon | 11 | hauls | B09 Zooplankton |
multinet hauls | no |
AWI | von Appen Wilken-Jon | 8 | stations | G04 Core-soft bottom (no. of cores) |
multicorer stations | no |
AWI | von Appen Wilken-Jon | 59 | samples | H10 CTD-Stations |
CTD profiles | no |
AWI | von Appen Wilken-Jon | 11 | samples | M71 Atmospheric chemistry |
air samples | 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 | B73 | EGC-5 | 78° 59.7' N | 5° 23.6' W | - |
AWI | von Appen Wilken-Jon | B73 | FEVI-37 | 79° 44.5' N | 4° 31.4' E | - |
AWI | von Appen Wilken-Jon | B73 | FEVI-38 | 79° 0.0' N | 4° 20.0' E | - |
AWI | von Appen Wilken-Jon | D01 | F4-18 | 79° 0.0' N | 7° 0.0' E | - |
AWI | von Appen Wilken-Jon | D01 | F4S-3 | 79° 0.7' N | 6° 57.8' E | - |
AWI | von Appen Wilken-Jon | D01 | F4W-1 | 79° 0.7' N | 7° 2.1' E | - |
AWI | von Appen Wilken-Jon | D01 | HG-IV-S-3 | 79° 1.4' N | 4° 15.7' E | - |
AWI | von Appen Wilken-Jon | D01 | SWIPS-2018 | 79° 1.4' N | 4° 24.3' E | - |