| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Maria S. Merian | MSM99-2 | 26.03.2021 - 05.04.2021 | DAM-MGF-NORDSEE |
North Sea German Bight |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Schmidt Christopher | Helmholtz Centre for Ocean Research Kiel (GEOMAR) | Emden | Emden |
Ziel der Reise / Objectives of Cruise:
The aim of cruise MSM99/2 was to investigate the periodic formation of pockmarks north of Helgoland in the North Sea. It is generally assumed that the pockmarks form during the occurrence of large storms. The proposed mechanism is based on the fact that wave movements lead to pressure changes in the sediment and thus free gas is formed in the upper sediment and can be stimulated to rise. To test this hypothesis, sampling stations in two working areas were planned for the cruise. The first working area is located north of Helgoland. In this area pockmarks were described for the first time in 2015. The second working area is located south of Helgoland in the so-called "Helgoland Mud Area". The investigations in both working areas included high-resolution mapping of the study areas as well as a targeted geo-chemical sampling of sediments and pore water.
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| GEOMAH | Schmidt Christopher | 10 | stations | G02 Grab |
Grab samples | no |
| GEOMAH | Schmidt Christopher | 28 | stations | G04 Core-soft bottom (no. of cores) |
Sediment Cores (GC) | no |
| GEOMAH | Schmidt Christopher | 35 | stations | G04 Core-soft bottom (no. of cores) |
Sediment Cores (Mini-MUC) | no |
| IFGGKI | Bottner Christoph | 2037 | km | G74 Multi-beam echosounding |
Shipboard Multibeam Surveys (EM712) | no |
| IFGGKI | Bottner Christoph | 2037 | km | G74 Multi-beam echosounding |
Shipboard Parasound Surveys(PS70) | no |
| GEOMAH | Schmidt Christopher | 1 | n miles | G90 Other geological or geophysical measurements |
EM712, SVP, Parasound-MkII | yes |
| GEOMAH | Schmidt Mark | 64 | stations | H00 Stations |
- | yes |
| GEOMAH | Schmidt Mark | 11 | stations | H10 CTD-Stations |
CTD cats with | no |
| GEOMAH | Schmidt Christopher | 1 | n miles | H80 Other physical measurements |
Underway measurements udring the whole trip such as coordinates, depth, meteorological parameter and so on | yes |