14th Mar, 2017

L4 buoy relaunched

The L4 buoy, which has been in-shore since October for routine winter maintenance, has now been relaunched.  Special thanks to James, Oban, John and the boat crew for making this happen, and particularly ahead of the imminent dredge disposal which will be occurring some 3 nM to the NW of L4.  We shall be closely monitoring the turbidity levels, which should be at or below 1NTU under background conditions (as they are today).  New for 2017 is the re-introduction of the Satlantic SUNA nitrate sensor, which previously we have had little success with.  However, early indications are good with values at L4 being close to what is expected (~10uM) ahead of the spring bloom.

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