Plattform Platform	Reise-Nr. Cruise-No.	Zeitraum Period	Projekt Project	Arbeitsgebiet Working area
Heincke	HE227	05.05.2005 - 12.05.2005		North Sea

Fahrtleiter Chief Scientist	Institut Institute	Auslaufhafen Port of departure	Einlaufhafen Port of return	Stationskarte Station map	Schiffsroute Trackchart
Emeis Kay-Christian	Institut fur Biogeochemie und Meereschemie der Universitat Hamburg	Bremerhaven	Bremerhaven

Ziel der Reise / Objectives of Cruise:

Field course for students: Water column sampling, acoustic sounding of seafloor and sediment structures, sediment sampling. Ther vessel left port (Bremerhaven) on May 5, 2005 at 10:00 LT and set out to sample a grid of stations in the box 57?15`N, 006?00`E and 54?30`N, o07?30` E. Stations were occupied during daytime for water column and surface sediment work, during nights, we towed a boomer on N-S trending acoustic profiles. A total of 24 stations were occupied; at each station we deployed a simple water column profiler (pressure, conductivity, temperature, oxygen content, transissivity, pH), a series of up to three Niskin bottles to obtain water samples from 5 m above the seafloor, mid-water, and surface. The water samples were used for for oxygen titration and filtration of seston. We routinely obtained a reading of Secchi depth, and sampled the surface sediments with a box corer.On May 11, we left the working area after finishing the last station and returned to port in Bremerhaven, where we arrived on May 12 at 09:00 LT. Here the expedition ended.

Messungen / Measurements