Physics
Scientific paper
Apr 2012
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012georl..3907602r&link_type=abstract
Geophysical Research Letters, Volume 39, Issue 7, CiteID L07602
Physics
Oceanography: General: Ocean Observing Systems, Oceanography: General: Instruments And Techniques, Oceanography: Physical: Currents, Oceanography: Physical: General Circulation (1218, 1222)
Scientific paper
Determining the exchange of water across the Iceland-Faroe-Scotland ridge is of fundamental interest because it measures the rate of transformation of North Atlantic water into dense water and thus the strength of the meridional overturning circulation (MOC). Here we study this exchange by monitoring all water flowing through the area east of Iceland to near the bottom or ∼600 m depth using a 75 kHz acoustic Doppler current profiler (ADCP) mounted on the high-seas ferry M/F Norröna. Starting in March 2008, currents have been measured in the Faroe-Shetland Channel (FSC) and along the Iceland-Faroe Ridge (IFR) on the ferry's weekly round-trips between Iceland and Denmark. The detided average transports (to the north) across the two sections are 4.1 ± 0.1 Sv (106 m2s‑1) through the FSC and 4.4 ± 0.25 Sv across the IFR (this excludes ∼1.6 Sv circulating around the Faroes). The Norröna program is ongoing.
Flagg C. N.
Rossby Thomas
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