| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Poseidon | 272 | 01.04.2001 - 14.04.2001 | NE Atlantic (Limit 40?W) |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Meggers Helge | Fachbereich Geowissenschaften der Universitat Bremen | Las Palmas | Las Palmas | Karte Map |
Ziel der Reise / Objectives of Cruise:
Upwelling off NW-Africa produces large gradients of temperature and prigment concentrations at the sea surface, which is also mirrored in underlying sediments. Particularly striking in satellite pictures are several ... filaments of .... pigment-rich waters between Cap Ghir and Cap Blanc extending several hundred kilometers offshore. These filaments transport "Upwelling-Finger-Prints" into the open oligotrophic ocean. The Poseidon cruise 272 served to study both the particle flux in the water column and the influence of the filaments on accumulation rates in the sediment in 4 transects of the NW-African upwelling region ( between Cap Blanc, Cabo Barbas, Dakhla and Cap Bojador).
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 | Ratmeyer V. | 18 | casts | B90 Other biological / fishery measurements |
Particle camera casts | no |
| GEOUNB | Fischer Gerhard | 1 | mooring(s) | D01 Current meters |
Recovery of mooring Recovery of mooring CB11 (21? 17' N , 20? 43' W) with two sediment traps and current meters; Deployment of mooring Recovery of mooring CB12 (21? 16' N , 20? 47' W) with two sediment traps and current meters. | no |
| GEOUNB | Meggers Helge | 18 | cont. | G02 Grab |
Multicorer | no |
| GEOUNB | Meggers Helge | 18 | casts | G08 Bottom photography |
Underwater video | no |
| GEOUNB | Meggers Helge | 1 | cont. | G73 Single-beam echosounding |
12 and 18 kHz echosounder | no |
| GEOUNB | Meggers Helge | 31 | stations | H00 Stations |
- | no |
| GEOUNB | Ratmeyer V. | 18 | casts | H10 CTD-Stations |
CTD on particle camera frame | no |
| GEOUNB | Ratmeyer V. | 18 | casts | H16 Transparency (e.g. transmissometer) |
Transmissiometer on frame | no |
