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RISAn OGCM Study for the TOGA Decade. Part I: Role of Salinity in the Physics of the Western Pacific Fresh Pool
Publisher: American Meteorological Society
Abstract: A set of numerical simulations of the tropical Pacific Ocean during the 1985?94 decade is used to investigate the effects of haline stratification on the low-frequency equilibrium of the Coupled Ocean?Atmosphere Response ...
An OGCM Study for the TOGA Decade. Part II: Barrier-Layer Formation and Variability
Publisher: American Meteorological Society
Abstract: A set of OGCM experiments is used to investigate the processes responsible for barrier layer (BL) formation in the Pacific Ocean. As in existing datasets, BL appears in the present experiments both in the western Pacific ...
Indo-Pacific Sea Surface Temperature Perturbations Associated with Intraseasonal Oscillations of Tropical Convection
Publisher: American Meteorological Society
Abstract: Since the ISV of the convection is an intermittent phenomenon, the local mode analysis (LMA) technique is used to detect only the ensemble of intraseasonal events that are well organized at large scale. The LMA technique ...
Ocean–Atmosphere Coupling in the Monsoon Intraseasonal Oscillation: A Simple Model Study
Publisher: American Meteorological Society
Abstract: A simple coupled model is used in a zonally symmetric aquaplanet configuration to investigate the effect of ocean?atmosphere coupling on the Asian monsoon intraseasonal oscillation. The model consists of a linear atmospheric ...
Ocean Mixed Layer Temperature Variations Induced by Intraseasonal Convective Perturbations over the Indian Ocean
Publisher: American Meteorological Society
Abstract: In situ and satellite observations reveal that the tropical intraseasonal oscillation is occasionally associated with large variations in sea surface temperature (SST). The purpose of this paper is to find the physical ...
Nonnormal Multidecadal Response of the Thermohaline Circulation Induced by Optimal Surface Salinity Perturbations
Publisher: American Meteorological Society
Abstract: Optimal perturbations of sea surface salinity are obtained for an idealized North Atlantic basin using a 3D planetary geostrophic model?optimality is defined with respect to the intensity of the meridional overturning ...
Adjustment of Near-Equatorial Wind Stress with Four-Dimensional Variational Data Assimilation in a Model of the Pacific Ocean
Publisher: American Meteorological Society
Abstract: A four-dimensional variational scheme is described in which ocean observations are assimilated into an ocean general circulation model using wind stress forcing fields as control variables. Idealized (?twin?) experiments ...
Intraseasonal Variability of Equatorial Indian Ocean Zonal Currents
Publisher: American Meteorological Society
Abstract: New satellite and in situ observations show large intraseasonal (10?60 day) variability of surface winds and upper-ocean current in the equatorial Indian Ocean, particularly in the east. An ocean model forced by the Quick ...
How Well Do CMIP6 Models Simulate Salinity Barrier Layers in the North Indian Ocean?
Publisher: American Meteorological Society
Decadal Variability of the Indian and Pacific Walker Cells since the 1960s: Do They Covary on Decadal Time Scales?
Publisher: American Meteorological Society
Abstract: AbstractPrevious studies have investigated the centennial and multidecadal trends of the Pacific and Indian Ocean Walker cells (WCs) during the past century, but have obtained no consensus owing to data uncertainties and ...