Other
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007csr....27.2534z&link_type=abstract
Continental Shelf Research, Volume 27, Issue 20, p. 2534-2555.
Other
Scientific paper
Sea level, current, and hydrographic observations made in Lunenburg Bay of Nova Scotia, Canada, in the summer and fall of 2003 are used to investigate the dynamical response of the bay to wind, tide and buoyancy forcing. The temperature and salinity variability at periods of >10d was similar to that on the inner Scotian Shelf, whereas the variability at periods of 1 10d was mainly related to the local wind forcing. The five major tidal constituents (M2, N2, S2, K1 and O1) extracted from the observed sea levels accounted for about 99% of the total tidal variance during the study period. Tidal elevation in Upper South Cove had reduced amplitude and a phase lag of about an hour compared to Lunenburg Bay itself. The observed non-tidal sea levels were related with the local wind forcing. The semi-diurnal M2 tidal flow extracted from current measurements was the major tidal constituent. The observed non-tidal currents had significant temporal variation, with the first EOF (empirical orthogonal function) correlated with the local wind forcing and the second EOF being weakly related to the baroclinic transport into the bay estimated using the thermal wind relation. The first EOF was characterized by inflow on one side of the bay and outflow on the other. It is shown that the circulation variability associated with the first EOF played an important role in the heat budget of the bay, exchanging heat (and also salt) with the neighbouring inner Scotian Shelf.
Greatbatch Richard J.
Sheng Jinyu
Zhai Li
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