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contributor authorDing, Hui
contributor authorGreatbatch, Richard J.
contributor authorLatif, Mojib
contributor authorPark, Wonsun
contributor authorGerdes, Rüdiger
date accessioned2017-06-09T17:07:34Z
date available2017-06-09T17:07:34Z
date copyright2013/10/01
date issued2013
identifier issn0894-8755
identifier otherams-79767.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4222583
description abstracthe use of a coupled ocean?atmosphere?sea ice model to hindcast (i.e., historical forecast) recent climate variability is described and illustrated for the cases of the 1976/77 and 1998/99 climate shift events in the Pacific. The initialization is achieved by running the coupled model in partially coupled mode whereby global observed wind stress anomalies are used to drive the ocean/sea ice component of the coupled model while maintaining the thermodynamic coupling between the ocean/sea ice and atmosphere components. Here it is shown that hindcast experiments can successfully capture many features associated with the 1976/77 and 1998/99 climate shifts. For instance, hindcast experiments started from the beginning of 1976 can capture sea surface temperature (SST) warming in the central-eastern equatorial Pacific and the positive phase of the Pacific decadal oscillation (PDO) throughout the 9 years following the 1976/77 climate shift, including the deepening of the Aleutian low pressure system. Hindcast experiments started from the beginning of 1998 can also capture part of the anomalous conditions during the 4 years after the 1998/99 climate. The authors argue that the dynamical adjustment of heat content anomalies that are present in the initial conditions in the tropics is important for the successful hindcast of the two climate shifts.
publisherAmerican Meteorological Society
titleHindcast of the 1976/77 and 1998/99 Climate Shifts in the Pacific
typeJournal Paper
journal volume26
journal issue19
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-12-00626.1
journal fristpage7650
journal lastpage7661
treeJournal of Climate:;2013:;volume( 026 ):;issue: 019
contenttypeFulltext


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