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UID:vuc1onajs0fpct9nl84jltm95g@google.com
DTSTAMP:20180503T092240Z
CATEGORIES;LANGUAGE=en-US:MIT Seminar | PAOC Oceanography and Climate Sack 
 Lunch
CONTACT:
DESCRIPTION:Despite the major role played by mesoscale eddies in redistribu
 ting the energy of the large-scale circulation\, our understanding of thei
 r dissipation is still incomplete. This study investigates the generation 
 of internal waves by decaying eddies in the North Atlantic western boundar
 y. The eddy presence and decay are measured from the altimetric surface re
 lative vorticity associated with an array of full-depth current meters ext
 ending ~100 km offshore at 26.5N. In addition\, internal waves are analyse
 d over a topographic rise from 2-year high-frequency measurements of an Ac
 oustic Doppler Current Profiler (ADCP)\, which is located 13 km offshore i
 n 600 m deep water. Despite an apparent polarity independence of the eddy 
 decay observed from altimetric data\, the flow in the deepest 100 m is enh
 anced for anticyclones (25.2 cm/s) compared with cyclones (-4.7 cm/s). Acc
 ordingly\, the internal wave field is sensitive to this polarity-dependent
  deep velocity. This is apparent from the eddy-modulated enhanced dissipat
 ion rate\, which is obtained from a finescale parameterization and exceeds
  10^-9 W/kg for near-bottom flows greater than 8 cm/s. The present study u
 nderlines the importance of oceanic western boundaries for removing the en
 ergy of low-mode westward-propagating eddies to higher-mode internal waves
 .
DTSTART;TZID=America/New_York:20160330T120000
DTEND;TZID=America/New_York:20160330T130000
LOCATION:54-915
SEQUENCE:0
SUMMARY:SLS-LOUIS CLEMENT (LDEO) – Generation of internal waves by eddies i
 mpinging on the western boundary of the North Atlantic
URL:http://oceans.mit.edu/event/sls-louis-clement-ldeo-generation-of-intern
 al-waves-by-eddies-impinging-on-the-western-boundary-of-the-north-atlantic
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