TEMPLATE DESIGN © 2008 www.PosterPresentations.com Fig. 6. Left panel: excursions made by an EM-APEX float during one cycle. Two
excursions to the surface, separated by half an inertial period, are made every 2 days. Right panel: Ratio of shear variance to N2 during 2009 (tracks shown in Fig. 3)6. The green, red and blue dots are for the three floats launched with the tracer. The dotted magenta line is the shear variance expe...
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| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.680.8553 http://conference2011.wcrp-climate.org/posters/C37/C37_Ledwell_TH80B.pdf |
| Summary: | excursions to the surface, separated by half an inertial period, are made every 2 days. Right panel: Ratio of shear variance to N2 during 2009 (tracks shown in Fig. 3)6. The green, red and blue dots are for the three floats launched with the tracer. The dotted magenta line is the shear variance expected for the Garrett and Munk model spectrum for background internal waves in the ocean. There is a peak in shear variance in June which may explain the modest difference between the tracer diffusivity, which integrates over a year of mixing, and Kr estimated from energy dissipation rates, which were measured in February/March 2010. Fig. 9. Stations were occupied both east and west of Drake Passage in late 2010, and again in April 2011, with the striking result that the diapycnal spread of the tracer was much greater to the east of Drake Passage than to the west. The next figure shows mean diapycnal tracer profiles from the lines marked S3 and SR1, both occupied in April 2010. Aim. The aim of DIMES is to measure and to better understand diapycnal mixing |
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