RRS Challenger CH16_2
Cruise summary report
|Ship name (ship code)||RRS Challenger (74CH)|
|Cruise period||1987-06-23 — 1987-07-03|
|Port of departure||Tórshavn, Faroe Islands|
|Port of return||Troon, United Kingdom|
|Objectives||1. To investigate the distributions of phytoplankton, especially coccolithophorids, and relevant hydrographic properties (temperature, salinity, oxygen, inorganic nutrients, light penetration etc.) in the NE Atlantic Ocean (55-65° N, 01-21° W).
2. To make further measurements of biogenic sulphur compounds in surface oceanic waters and the marine atmosphere.
3. To make a preliminary investigation of the production of particulate organic and inorganic carbon in relation to the CO2 chemistry of surface waters.
4. To collect samples of glacial and post-glacial sediments for studies on sedimentation and geochemical processes.
These were successfully achieved, with only minor losses of operational time due to poor weather and equipment failures.
|Chief scientist||Patrick M Holligan (Marine Biological Association of the UK)|
|Cruise report||(9.17 MB)|
North East Atlantic Ocean (limit 40W)
|Track charts||(0.30 MB)|
|Surface measurements underway (T,S)|
|Bathythermograph||Quantity: number of profiles = 59|
|Water bottle stations||Description: S surface only.|
|CTD stations||Quantity: number of profiles = 10|
|Other chemical oceanographic measurements|
|Biology and fisheries|
|Phytoplankton pigs (eg chlorophyll, fluorescence)||Quantity: number of samples = 200|
|Particulate organic matter (inc POC, PON)||Quantity: number of samples = 18|
|Phytoplankton||Quantity: number of samples = 245|
|Zooplankton||Quantity: number of samples = 9|
Description: Identification, distribution.
|Geology and geophysics|
|Core - soft bottom||Quantity: number of cores = 4|
Description: chemical analysis
|Bottom photography||Quantity: number of deployments = 3|