Spring tide variability is more semidiurnal, neap tide variability is more diurnal

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Spring tide variability is more semidiurnal, neap
tide variability is more diurnal
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Barrow currents Tide Out Non-tide In
(weak) Net Out Cooper currents Tide
Out Non-tide - Out? Net Out Outflows from
Elson Lagoon create frontal zones in the
near shore region
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08 Sept 2005 Scores of bowhead whales observed
feeding near Cooper Island (1315-1615h) 5 days
after new moon - tide becoming more diurnal, less
semidiurnal - LW at 1032h Winds from SSW at 5
kts (2.5 m/sec) 2006 current meter, water
level, wind, and satellite data Near shore
fronts are associated with outflow
(tidal/non-tidal) currents from Elson Lagoon.
Diurnal ebb (outflow) currents at Cooper begin
6 hr before LW and end 6 hr after LW Non-tidal
currents at Cooper are weakly correlated with SSW
winds
Infer the presence of near shore front(s)
maintained by ebb currents at Cooper from 0430h
to 1630h Fronts provide a mechanism for
aggregation of existing zooplankton Opportunity
for efficient feeding by whales
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14 Aug 05