| Plattform Platform |
Reise-Nr. Cruise-No. |
Zeitraum Period |
Projekt Project |
Arbeitsgebiet Working area |
|---|---|---|---|---|
| A. v. Humboldt | 04-01 | 07.01.2004 - 23.01.2004 | NAMIBGAS |
SE Atlantic (Limit 20?W) |
| Fahrtleiter Chief Scientist | Institut Institute | Auslaufhafen Port of departure | Einlaufhafen Port of return | Stationskarte Station map | Schiffsroute Trackchart |
|---|---|---|---|---|---|
| Lass Ulrich | Leibniz-Institut fur Ostseeforschung, Warnemunde | Walvis Bay | Walvis Bay |
Ziel der Reise / Objectives of Cruise:
The cruise aims at a study of the processes which control the outbreaks of hydrogen sulphur on the shelf off Namibia during austral summer with particular emphasis on the hydrographic conditions in the water column. The focus of the cruise is on the observation and compilation of the hydrographic, hydro chemical, and hydro optical key processes which control the formation of hydrogen sulfide in the water column. The results of the cruise are in context with two further cruises which are focussed on the distribution of the gas content of the sediments and the fluxes of matter through the water sediment interface on the Namibian shelf. Project AHAB_1
Messungen / Measurements
| Institut Institute |
Wissenschaftler Scientist |
Anzahl Number |
Einheit Unit |
Typ der Messungen Type of measurements |
Kommentar Comments |
Daten im DOD Data in DOD |
|---|---|---|---|---|---|---|
| IOW | Siegel Herbert | 120 | samples | B02 Phytoplankton pigments (e.g. chlorophyll, fluorescence) |
Water samples for chlorophyl_a estimation | no |
| MPIMHB | Kuypers Marcel | 3 | casts | B71 Particulate organic matter (e.g. POC, PON) |
In Situ Pumps sampling particulate matter at six selected depths | no |
| GEOUNB | Zabel Matthias | 320 | samples | B71 Particulate organic matter (e.g. POC, PON) |
Water samples for particular organic matter | no |
| IOW | Lass Ulrich | 14 | casts | D71 Current profiler (e.g. ADCP) |
Lowered ADCP | no |
| GEOUNB | Zabel Matthias | 25 | casts | G04 Core-soft bottom (no. of cores) |
Multicorer | no |
| MPIMHB | Lavik Gaute | 27 | casts | H10 CTD-Stations |
Pump CTD pumping continuously seawater during the cast into the ships laboratory | no |
| IOW | Lass Ulrich | 109 | casts | H10 CTD-Stations |
CTD with supplementary sensors for oxygen and fluorecece | no |
| IOW | Siegel Herbert | 15 | day(s) | H17 Optics (e.g. underwater light levels) |
Spectral radiometer for radiance and irradiance measuring continuously during the cruise | no |
| IOW | Siegel Herbert | 53 | casts | H17 Optics (e.g. underwater light levels) |
SATLANTIC optical profiler | no |
| MPIMHB | Lavik Gaute | 1143 | samples | H22 Phosphates |
Autoanalyzer for phosphate, nitrate, silica, sulfide, nitrite and ammonia | no |
| MPIMHB | Lavik Gaute | 1143 | samples | H23 Total - P |
Spectral radiometer for radiance and irradiance measuring continuously during the cruise | no |
| MPIMHB | Lavik Gaute | 1143 | samples | H24 Nitrates |
Spectral radiometer for radiance and irradiance measuring continuously during the cruise | no |
| MPIMHB | Lavik Gaute | 1143 | samples | H25 Nitrites |
Spectral radiometer for radiance and irradiance measuring continuously during the cruise | no |
| IOW | Lass Ulrich | 15 | day(s) | H71 Surface measurements underway (T, S) |
Through flow measurements by a thermosalinograph and fluorometer | no |
| IOW | Lass Ulrich | 15 | day(s) | M06 Routine standard measurements |
Continuosly recorded surface meteorological measurements by the ships weather station | 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 |
|---|---|---|---|---|---|---|
| IOW | Lass Ulrich | D71 | Deployed at 8 January 2004 with ADCP and 4 SBE Seacat recorder in 4 depths | 23° 0.0' S | 14° 3.0' E | - |