| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| Meteor | M121 | 22.11.2015 - 26.12.2015 | GEOTRACES |
Angola Basin SE Atlantic (Limit 20?W) Cape Basin |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Frank Martin | Helmholtz Centre for Ocean Research Kiel (GEOMAR) | Walvis Bay | Walvis Bay |
Ziel der Reise / Objectives of Cruise:
Main scientific focus of this cruise in the frame of the international GEOTRACES programme (Cruise No. GA08) was the investigation the full water column distribution of dissolved and particulate trace metals and their isotopes (TEIs) along a near shore and an offshore N-S section in the Angola Basin and the northernmost Cape Basin, which were connected by two section perpendicular to the coastline at 3?S and 30?S. The newly acquired trace metal clean rosette and mobile winch of GEOMAR were successfully applied to sample the full water column at a total of 51 stations in the Angola Basin and Northern Cape Basin. This will enable investigation of the TEI signatures of major water masses, of the continental inputs (particulates, dust aerosols, precipitation, and freshwater of the Congo River), as well as of the biogeochemical cycling of the TEIs on the continental shelves of West Africa and within the Benguela Upwelling. In addition to the section work, two new 500 litre GEOTRACES reference samples were taken in the open Angola Basin.
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 | Achterberg Eric | 51 | stations | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
. | no |
| GEOMAH | Frank Martin | 35 | day(s) | D71 Current profiler (e.g. ADCP) |
ships own ADCP . | no |
| GEOMAH | Frank Martin | 35 | day(s) | G74 Multi-beam echosounding |
only bathymetry along cruise track . | no |
| GEOMAH | Frank Martin | 1 | n miles | G90 Other geological or geophysical measurements |
EM 122, ADCP | yes |
| GEOMAH | Frank Martin | 196 | stations | H00 Stations |
- | yes |
| GEOMAH | Frank Martin | 51 | stations | H10 CTD-Stations |
51 stations with deployment of standard and trace metal clean CTD rosette sampler . | no |
| GEOMAH | Frank Martin | 35 | day(s) | H13 Bathythermograph drops |
ship's thermosalinometer . | no |
| GEOMAH | Achterberg Eric | 51 | stations | H22 Phosphates |
and all other nutrients . | no |
| UNIBRE | Koschinsky Andrea | 51 | stations | H30 Trace elements |
HFSE trace metals . | no |
| GEOMAH | Achterberg Eric | 35 | day(s) | H30 Trace elements |
aerosol collectors. | no |
| GEOMAH | Achterberg Eric | 35 | day(s) | H30 Trace elements |
in situ pumps. | no |
| GEOMAH | Achterberg Eric | 35 | day(s) | H30 Trace elements |
rain collectors. | no |
| GEOMAH | Achterberg Eric | 51 | stations | H30 Trace elements |
trace metal samples taken. | no |
| UNIOX | Henderson Gideon | 30 | stations | H31 Radioactivity |
Pa and Th isotopes . | no |
| GEOMAH | Frank Martin | 51 | stations | H32 Isotopes |
radiogenic and and stable isotopes. | no |
| MPICMZ | Galer Steve | 7 | stations | H32 Isotopes |
Pb/Cd isotopes. | no |
| GEOMAH | Frank Martin | 1 | n miles | H80 Other physical measurements |
Underway measurements during the whole trip such as coordinates, depth, meteorological parameter and so on | yes |
| GEOMAH | Frank Martin | 1 | no unit | M90 Other meteorological measurements |
Analysen, Ballonaufstiege, meteorologische Daten, Satelitenbilder, Trajektorien, Wetterberichte | yes |
| GEOMAH | Achterberg Eric | 35 | stations | P01 Suspended matter |
samples for trace metal analyses. | no |