| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Heincke | HE387 | 19.08.2012 - 16.09.2012 | Norwegian Sea |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Sahling H. | Universitat Bremen, Zentrum fur Marine Umweltwissenschaften | Longyearbyen | Bremerhaven |
Ziel der Reise / Objectives of Cruise:
The major objectives during R/V Heincke cruise 387 were, to use hydroacoustic techniques (multibeam EM 710, fish finder EK 60) in order to map the distribution of gas bubble emissions at the continental margin west of Spitzbergen. Using the remotely operated vehicle (ROV) Cherokee, we intended to map and quantify bubble streams at the seafloor in order to estimate the flux of methane into the ocean. The objectives were largely fulfilled, about 1920 nauticle miles of hydroacoustic surveys were acquired as well as nine ROV dives. We could map the distribution of gas emissions and quantified several bubble streams.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| GEOUNB | Sahling H. | 4 | deployment | G04 Core-soft bottom (no. of cores) |
Sediments recovered | no |
| GEOUNB | Sahling H. | 9 | diving(s) | G71 In-situ sea floor measurements |
Dives with remotely operated vehicle (ROV) Cherokee for seafloor observation and sampling | no |
| GEOUNB | Sahling H. | 3450 | km | G73 Single-beam echosounding |
EK 60 fish finding sonar was running must of the time during the cruise | no |
| GEOUNB | Sahling H. | 3450 | km | G74 Multi-beam echosounding |
The multibeam EM 710 was recording all the time during the cruise | no |
| GEOUNB | Sahling H. | 20 | profiles | H10 CTD-Stations |
CTD stations with Niskin water samples taken for isotope studies of methane | no |
| GEOUNB | Sahling H. | 3450 | km | H33 Other dissolved gases |
Continuous methane and carbon dioxide measurement in surface waters during the cruise | no |
| GEOUNB | Sahling H. | 3450 | km | H71 Surface measurements underway (T, S) |
The thermosalinograph was running all the time | no |