نتایج جستجو برای: general model
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[1] The response of the Arctic Ocean sea ice system to Northern Annular Mode-like wind forcing has been investigated using an ocean/sea ice general circulation model coupled to an atmospheric boundary layer model. A series of idealized experiments was performed to investigate the Arctic Ocean’s response to idealized winter wind anomalies on interannual to multi-decadal time scales. The sea ice ...
Sea-breeze-initiated convection and precipitation have been investigated along the east coast of India during the Indian southwest monsoon season. Seabreeze circulation was observed on approximately 70–80% of days during the summer months (June–August) along the Chennai coast. Average sea-breeze wind speeds are greater at rural locations than in the urban region of Chennai. Sea-breeze circulati...
Down-core variations in North Atlantic Paxs / Thxs have been interpreted as changes in the strength of the Atlantic Meridional Overturning Circulation (AMOC). This modelling study confirms that hypothetical changes in the AMOC would indeed be recorded as changes in the distribution of sedimentary Paxs / Thxs. At different sites in the North Atlantic the changes in sedimentary Pa / Th that we si...
We show (in confirmation of previous work) using oneand three-dimensional models that extratropical zonal wind anomalies, produced by fluctuating Rossby wave forcing in the troposphere, appear first in the stratosphere, and migrate downward into the troposphere. By systematically eliminating wave reflection and “downward control” through an induced meridional circulation, it is shown that the d...
iii Acknowledgments ..................................................................................... v CHAPTER
[1] Equatorial superrotation can be generated in global general circulation models (GCMs) when forced with longitudinally varying heating, similar to that postulated in the Matsuno‐Gill model. However, the implications of the classical Matsuno‐Gill theory for equatorial superrotation have not, to date, been addressed. Here, we show that the classic, shallow‐water Matsuno‐Gill solutions do not e...
Visualization taxonomies are an important means of imposing some structure on a rather diverse field. We review some earlier work in this area, particularly work based on the use of a notation to label classes of visualization techniques that are appropriate to particular entities. We propose a new notation introducing it in the context of a new visualization reference model, one we hope will l...
Recently, hydrographic measurements have been used to argue that the meridional overturning circulation at 25 N has decreased by 30% over the last 50 years. Here we show that the most likely interpretation consistent with this approach (i.e., with the dynamic method together with a level-of-no-motion assumption and Ekman dynamics) is that any decrease in strength of the deep western boundary cu...
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