Circulation and Transport at the Southeast Tip of Greenland

Nathalie Daniault, Pascale Lherminier, Herlé Mercier
2011 Journal of Physical Oceanography  
The circulation and related transports at the southeast tip of Greenland are determined from direct current observations of a moored current meter array. The measurements cover a time span from June 2004 to June 2006. The net mean total southwestward transport of the East Greenland-Irminger Current from the midshelf (20 km off the coast at 608N) to the 2070-m isobath (about 100 km offshore) was estimated as 17.3 Sv (Sv [ 10 6 m 3 s 21 ) with an uncertainty of 1 Sv. The transport variability is
more » ... ort variability is characterized by a standard deviation of 3.8 Sv with a peak-to-peak amplitude up to 30 Sv. The seasonal variability has an amplitude of 1.5 Sv. Frequencies around 0.1 day 21 dominate the signal, although a variability at lower frequency (;1 month 21 ) also appears in winter. The coherence between the observed transport variability and the wind stress curl variability over the Irminger Sea differs significantly from 0 at the 95% confidence level for periods greater than 5 days.
doi:10.1175/2010jpo4428.1 fatcat:7vk32psvk5cfjp7fzafiljrhvq