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RISSeasonal Variability of the North Atlantic Ocean—a Model Intercomparison
Publisher: American Meteorological Society
Abstract: The seasonal variability of the North Atlantic Ocean is investigated through a comparison of two different numerical models. One is a primitive equation model (PEM) forced with monthly wind stress and surface buoyancy flux. ...
Simulated Variability of the Arctic Ocean Freshwater Balance 1948–2001
Publisher: American Meteorological Society
Abstract: The Arctic Ocean freshwater balance over the period 1948?2001 is examined using results from a hindcast simulation with an ocean?sea ice model of the Atlantic and Arctic Oceans. Atmospheric forcing is taken from the NCEP?NCAR ...
Sea Ice Effects on the Sensitivity of the Thermohaline Circulation
Publisher: American Meteorological Society
Abstract: The authors investigate the sensitivity of the thermohaline circulation (THC) with respect to a subpolar salinity perturbation. Such perturbation simulates a freshwater release caused by retreating glaciers or anomalous ...
On the Influence of DSOW in a Numerical Model of the North Atlantic General Circulation
Publisher: American Meteorological Society
Abstract: Two numerical experiments regarding the North Atlantic circulation are compared. The two experiments are initialized with climatological temperatures and salinities and are integrated for ten years with different surface ...
Mechanisms Determining the Variability of Arctic Sea Ice Conditions and Export
Publisher: American Meteorological Society
Abstract: In an ocean?sea ice model of the Arctic and the northern North Atlantic driven with 50-yr NCEP?NCAR reanalysis data, no appreciable trend in sea ice volume is found for the period 1948?98. However, rather long subperiods, ...
Thermohaline and Wind Forcing of a Circumpolar Channel withBlocked Geostrophic Contours
Publisher: American Meteorological Society
Abstract: The Antarctic Circumpolar Current is governed by unique dynamics. Because the latitude belt of Drake Passage is not zonally bounded by continents, the Sverdrup theory does not apply to the Antarctic Circumpolar Current. ...
Thermohaline and Wind Forcing of a Circumpolar Channel withBlocked Geostrophic Contours
Publisher: American Meteorological Society
Abstract: The Antarctic Circumpolar Current is governed by unique dynamics. Because the latitude belt of Drake Passage is not zonally bounded by continents, the Sverdrup theory does not apply to the Antarctic Circumpolar Current. ...
Wind Feedback Mediated by Sea Ice in the Nordic Seas
Publisher: American Meteorological Society
Abstract: Air–sea interactions play a critical role in the climate system. This study investigates wind-induced changes in the ocean surface temperature and sea ice cover feeding back onto the atmospheric circulation. This interaction ...
Covariance of Optimal Parameters of an Arctic Sea Ice–Ocean Model
Publisher: American Meteorological Society
Abstract: AbstractThe uniqueness of optimal parameter sets of an Arctic sea ice simulation is investigated. A set of parameter optimization experiments is performed using an automatic parameter optimization system, which simultaneously ...
Simultaneous Parameter Optimization of an Arctic Sea Ice–Ocean Model by a Genetic Algorithm
Publisher: American Meteorological Society
Abstract: AbstractImprovement and optimization of numerical sea ice models are of great relevance for understanding the role of sea ice in the climate system. They are also a prerequisite for meaningful prediction. To improve the ...