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contributor authorKatz, Eli J.
contributor authorBriscoe, Melbourne G.
date accessioned2017-06-09T14:45:03Z
date available2017-06-09T14:45:03Z
date copyright1979/05/01
date issued1979
identifier issn0022-3670
identifier otherams-25927.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4162764
description abstractConstant depth and isopycnal?following tows are used to estimate the, towed vertical coherence of the internal wave field, at vertical separations of 8.5, 18, 28 and 70 m. The depths of the tows are ?750 m at the maximum of the buoyancy frequency in the main thermocline of the Sargasso Sea, and near 350 m in the buoyancy frequency minimum between the main and seasonal thermoclines. The towed spectra and towed vertical coherence are compared with three model spectra (GM75, GM76 and IWEX): at 750 m the agreement between data and models is very good, with IWEX being slightly better. At 350 m several of the measured towed vertical coherence spectra are more complex than the spectra from the deeper tows, there are anomalously high coherences in a band from 0.7 to 2 cycles per kilometer that are not predictable by the models. We suggest this coherence bump may be evidence of Eckart resonance, i.e., modes tunneling between the two thermoclines into the region of low buoyancy frequency.
publisherAmerican Meteorological Society
titleVertical Coherence of the Internal Wave Field from Towed Sensors
typeJournal Paper
journal volume9
journal issue3
journal titleJournal of Physical Oceanography
identifier doi10.1175/1520-0485(1979)009<0518:VCOTIW>2.0.CO;2
journal fristpage518
journal lastpage530
treeJournal of Physical Oceanography:;1979:;Volume( 009 ):;issue: 003
contenttypeFulltext


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