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Seabird 911 Profiles
RV Celtic Explorer Cruise CE17-01
Chief Scientist: Kevin Sheehan, MI
July 22nd to August 6th 2017
John E. Hughes Clarke
Anand Hiroji
Jose Cordero Ros
Center for Coastal and Ocean Mapping
University of New Hampshire

Overview:

map
Unfortunately the CTD sensor for the MVP was unavailable due to a micro-fracture in the conductivity cell. As a result, all the underway profiling is just with a sound speed probe. Thus the relative control of temperature and salinity is unknown. As a result it was decided to  stop (very rarely) and actually take a conventional CTD.

The added advantage of using the Seabird CTD rather than just the Midas probes is that, in addition to temperature and conductivity,  it also measures :
  • Dissolved Oxygen
  • Fluorescence
  • Turbidity

All these three indicate the presence of phytoplankton (chlorophyll - fluorescence) and photosynthesis and respiration (dissolved oxygen).

The locations and times were:
  • 50 43.46  -007 -50.25  SB_01_Jul_25_2017_08:59:50
  • 50 37.05  -007 -44.97  SB_02_Jul_29_2017_07:09:43
  • 50 37.06  -007 -44.97  SB_02b_Jul_29_2017_07:02:52
  • 50 34.88  -008 -25.84  SB_02_Jul_31_2017_14:18:10
  • 50 34.90  -008 -04.42  SB_02_Aug_01_2017_13:47:06
  Their locations relative to Labadie Bank are plotted to the left and the four profiles obtained are presented below.

 

01
911
ek
02
911 ek
02b
911 2b is just a separate
log file on the way
up as the pump
hadn't turned on.
03
911 ek
04
911 ek





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