Show simple item record

contributor authorKöhl, Armin
date accessioned2017-06-09T17:09:00Z
date available2017-06-09T17:09:00Z
date copyright2014/03/01
date issued2013
identifier issn0894-8755
identifier otherams-80167.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223029
description abstractn interannual time scales, regional sea level variability is largely determined by changes in the steric component. The relation between the thermosteric and halosteric components is studied by separating the components into contributions from the mixed layer and, below the mixed layer, into the part that is related to isopycnal motion and that contributes to the steric sea level and the inactive part related to changes of spiciness. The decomposition provides a simple diagnostic to detect and understand physical mechanisms leading to regional sea level changes. In most areas of the world?s oceans, steric sea level variability is dominated by the contribution from isopycnal motion to the thermosteric sea level while halosteric variability relates more to spiciness. Because of the salinity minimum at middepth, different spatial salinity gradients above and below the minimum lead to opposing contributions and thus to a small contribution from isopycnal motion to the halosteric sea level. In nonpolar regions, both active components oppose each other, rendering the thermosteric variability larger than the steric variability. In the Arctic, the variability of both components is governed by spiciness in the Eurasian Basin and isopycnal motion in the Amerasian Basin.
publisherAmerican Meteorological Society
titleDetecting Processes Contributing to Interannual Halosteric and Thermosteric Sea Level Variability
typeJournal Paper
journal volume27
journal issue6
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-13-00412.1
journal fristpage2417
journal lastpage2426
treeJournal of Climate:;2013:;volume( 027 ):;issue: 006
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record