Response of the meridional overturning circulation to variable buoyancy forcing in a double hemisphere basin
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چکیده
منابع مشابه
Observed Basin-Scale Response of the North Atlantic Meridional Overturning Circulation to Wind Stress Forcing
The response of the North Atlantic meridional overturning circulation (MOC) to wind stress forcing is investigated from an observational standpoint, using four time series of overturning transports below and relative to 1000m, overlapping by 3.6 yr. These time series are derived from four mooring arrays located on the western boundary of the North Atlantic: the RAPIDWestern Atlantic Variability...
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The effect of increasing horizontal resolution is examined to assess the response of the Atlantic meridional overturning circulation (AMOC) to freshwater perturbations. Versions of a global climate model with horizontal resolutions ranging from 1.8° (latitude) 3.6° (longitude) to 0.2° 0.4° are used to determine if the AMOC response to freshwater forcing is robust to increasing resolution. In th...
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Introduction: the concept of the MOC Climate models project a slow down of the Atlantic Meridional Overturning Circulation (MOC) in the twenty-first century. This slow down is expected to affect climate over Europe. In particular, it damps the temperature rise due to the emission of greenhouse gases. The MOC is associated with the thermohaline circulation (ThC), which is the large-scale ocean c...
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North Atlantic (NA) deep-water formation and the resulting Atlantic meridional overturning cell is generally regarded as the primary feature of the global overturning circulation and is believed to be a result of the geometry of the continents. Here, instead, the overturning is viewed as a global energy–driven system and the robustness of NA dominance is investigated within this framework. Usin...
متن کاملSimulated impact of altered Southern Hemisphere winds on the Atlantic Meridional Overturning Circulation
[1] Previous work has suggested that the strength and latitudinal position of the Southern Hemisphere (SH) midlatitude westerly winds has an important impact on climate and the Atlantic Meridional Overturning Circulation (AMOC). We probe this hypothesis by conducting ensembles of experiments using the GFDL CM2.1 coupled ocean-atmosphere model with altered SH wind stress. We find, consistent wit...
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ژورنال
عنوان ژورنال: Climate Dynamics
سال: 2009
ISSN: 0930-7575,1432-0894
DOI: 10.1007/s00382-009-0704-7