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contributor authorKuhlbrodt, Till
contributor authorMonahan, Adam Hugh
date accessioned2017-06-09T14:56:06Z
date available2017-06-09T14:56:06Z
date copyright2003/12/01
date issued2003
identifier issn0022-3670
identifier otherams-29970.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4167256
description abstractOpen-ocean deep convection is a highly variable and strongly nonlinear process that plays an essential role in the global ocean circulation. A new view of its stability is presented here, in which variability, as parameterized by stochastic forcing, is central. The use of an idealized deep convection box model allows analytical solutions and straightforward conceptual understanding while retaining the main features of deep convection dynamics. In contrast to the generally abrupt stability changes in deterministic systems, measures of stochastic stability change smoothly in response to varying forcing parameters. These stochastic stability measures depend chiefly on the residence times of the system in different regions of phase space, which need not contain a stable steady state in the deterministic sense. Deep convection can occur frequently even for parameter ranges in which it is deterministically unstable; this effect is denoted wandering unimodality. The stochastic stability concepts are readily applied to other components of the climate system. The results highlight the need to take climate variability into account when analyzing the stability of a climate state.
publisherAmerican Meteorological Society
titleStochastic Stability of Open-Ocean Deep Convection
typeJournal Paper
journal volume33
journal issue12
journal titleJournal of Physical Oceanography
identifier doi10.1175/1520-0485(2003)033<2764:SSOODC>2.0.CO;2
journal fristpage2764
journal lastpage2780
treeJournal of Physical Oceanography:;2003:;Volume( 033 ):;issue: 012
contenttypeFulltext


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