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contributor authorJochum, Markus
contributor authorBriegleb, Bruce P.
contributor authorDanabasoglu, Gokhan
contributor authorLarge, William G.
contributor authorNorton, Nancy J.
contributor authorJayne, Steven R.
contributor authorAlford, Matthew H.
contributor authorBryan, Frank O.
date accessioned2017-06-09T17:06:18Z
date available2017-06-09T17:06:18Z
date copyright2013/05/01
date issued2012
identifier issn0894-8755
identifier otherams-79456.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4222238
description abstracthe Community Climate System Model, version 4 (CCSM4) is used to assess the climate impact of wind-generated near-inertial waves (NIWs). Even with high-frequency coupling, CCSM4 underestimates the strength of NIWs, so that a parameterization for NIWs is developed and included into CCSM4. Numerous assumptions enter this parameterization, the core of which is that the NIW velocity signal is detected during the model integration, and amplified in the shear computation of the ocean surface boundary layer module. It is found that NIWs deepen the ocean mixed layer by up to 30%, but they contribute little to the ventilation and mixing of the ocean below the thermocline. However, the deepening of the tropical mixed layer by NIWs leads to a change in tropical sea surface temperature and precipitation. Atmospheric teleconnections then change the global sea level pressure fields so that the midlatitude westerlies become weaker. Unfortunately, the magnitude of the real air-sea flux of NIW energy is poorly constrained by observations; this makes the quantitative assessment of their climate impact rather uncertain. Thus, a major result of the present study is that because of its importance for global climate the uncertainty in the observed tropical NIW energy has to be reduced.
publisherAmerican Meteorological Society
titleThe Impact of Oceanic Near-Inertial Waves on Climate
typeJournal Paper
journal volume26
journal issue9
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-12-00181.1
journal fristpage2833
journal lastpage2844
treeJournal of Climate:;2012:;volume( 026 ):;issue: 009
contenttypeFulltext


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