Skip to end of metadata
Go to start of metadata

 

Cruise Plan

07:15 - arrival of students on the Heincke

08:00 - departure from Helgoland

08:30 - station 2: 'Tiefe Rinne', use of CTD and SVP, Multinet, Box core -> station end: 09:30

10:00 - Matras testsite - 6 lines, about 1nm each, 50 meters apart

11:30 - WP mudpile - 54.089720 N, 7.967778 E

13:30 - station 3 - mudpile, use of CTD and SVP, boy core (maybe MUC?) -> station end: around 14:00

14:00 - WP Hela - 53.622596 N, 8.474157 E

15:00 - station 4 - Hela, pass over wreck, then 'butterfly' (towed side scan)

16:00 - end stations, make towards Helgoland

17:00 - Arrival port Helgoland

 

 

Brief lectures

  • Sediments/geological development of the German Bight (A. Benthien)
  • Introduction of the CTD and deployment (W. von Appen)

 

 

Tasks

  • preprocessing of tide files for processing of multibeam data
  • setting up of the camera system for microscopy
  • cleaning of the multinet
  • prepping the box core/gravity core
  • processing of multibeam data 

 

Instruments used

  • CTD for several stations, potentially taking several samples at different depths on a single deployment
  • SVP at Tiefe Rinne 
  • Box core sediment samples (Tiefe Rinne, another sample later at the mud pile to investigate the differences in sediment composition of the two sites)
  • Multibeam (Hela shipwreck)
    -> lines 79, 80, 83, 84, 86, 88, 89, 91 and 93 
    -> possible ship wreck at 54.1420790, 7.8834519
  • Side scan sonar (also for the Hela to improve resolution, yesterday's images were not that good with just the multibeam)
    -> towed behind the ship, 'butterfly' track
  • Multinet 

 

Hela shipwreck

  • 53.622596 N, 8.474157 E
  • Three passes over the wreck
  • used multibeam (good signal, 3rd one not so good due to noise) and sidescan (at first no signal, then signal, mediocre quality

 

 

 

 

 

  • No labels