Falmouth Group 8
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Station 6
The pattern is similar to that seen in the previous station: there is a slight reduction
from an average surface value of 3.73 to 3.72, with a peak at around 11 m at approximately
3.81. The overall range is estimated at around 3.68-
Transmissivity-
The vertical profile observed at station 6 (50° 13.325N, 005° 01.606W) again shows
an expected nutrient distribution with depth. Salinity increases over the 10.7m sampled
from 31.8 at 1.3m to 32.9 at 10.7m. Silicon and phosphate levels again follow a roughly
similar correlation. Silicon values fall from 11.34mmol/L at 1.3m to 10.47mmol/L
at 4.4m, before a slightly more rapid decrease to 7.25mmol/L at 8.7m. This is followed
by a slowing of the gradient with only a 0.22mmol/L decrease in salinity values over
the next 2m. Phosphate values fall from a high of 4.81x10-
Nitrate levels also decrease over
the sampled depth, falling from 22.70mmol/L at 1.3m to 18.36mmol/L at 8.7m. The slowing
of the gradient at this point is not as steep as previously observed, with an overall
decrease of 2.42mmol/L over the next 2m.
Nutrients-
Fluorescence-
Error range: 0.513-
The graph shows that between 1.2m and 4.3m the average fluorescence increases from 0.433 to 0.474. For the rest of the water column the florescence stabilises at an average of around 0.474. There are 2 erroneous data plots that lie at 4.4m and 8.7m where the fluorescence is 0.682 and 0.753 respectively.
ADCP Transect-
Although there are no noticeable differences in current velocity in the water column,
there is some evidence present for stratification in the flow direction. The surface
layer was generally travelling outwards in a southerly direction at -
Click graphs to enlarge