Publikationsdatum:
2022-05-25
Beschreibung:
Author Posting. © Oceanography Society, 2004. This article is posted here by permission of Oceanography Society for personal use, not for redistribution. The definitive version was published in Oceanography 17, 1 (2004): 65-74.
Beschreibung:
The seafloor is one of the critical controls on the
ocean’s general circulation. Its influence comes through
a variety of mechanisms including the contribution of
mixing in the ocean’s interior through the generation of
internal waves created by currents flowing over rough
topography. The influence of topographic roughness on
the ocean’s general circulation occurs through a series
of connected processes. First, internal waves are generated
by currents and tides flowing over topographic
features in the presence of stratification. Some portion
of these waves is sufficiently nonlinear that they immediately
break creating locally enhanced vertical mixing.
The majority of the internal waves radiate away from
the source regions, and likely contribute to the background
mixing observed in the ocean interior. The
enhancement of vertical mixing over regions of rough
topography has important implications for the abyssal
stratification and circulation. These in turn have implications
for the storage and transport of energy in the climate
system, and ultimately the response of the climate
system to natural and anthropogenic forcing. Finally,
mixing of the stratified ocean leads to changes in sea
level; these changes need to be considered when predicting
future sea level.
Beschreibung:
SRJ
was supported by the National Science Foundation
under grant OCE-0241061 and an Office of Naval
Research Young Investigator Award, LCS was supported
by the Office of Naval Research under grant
N00014-03-1-0307, and STG was supported by the
National Science Foundation under grant OCE-
9985203/OCE-0049066 and by the National
Aeronautics and Space Administration under JPL contract
1224031.
Repository-Name:
Woods Hole Open Access Server
Materialart:
Article
Format:
application/pdf
Permalink