Geostrophic surface currents as derived from satellite SST images and
measured by a land-based HF radar
Int. Journ. Rem. Sens. 16, pp. 239...256, 1995.
Abstract - -
Sea- surface temperatures (SST), as observed from a space-borne radiometer
(AVHRR), are related to surface currents as measured by the high-frequency
coastal radar (CODAR) in Norwegian coastal waters. Both systems yield about the
same spatial resolution of the order of 1 km. Introducing a number of
simplifying assumptions, the geostrophic portion of surface currents is derived
from the SST distribution and compared with the CODAR measurements. In areas,
characterised by strong temperature gradients, good agreement is found for
current velocity and also for relative vorticity.
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