Current Retroflection from a Slanted Coastline » książka
Current Retroflection from a Slanted Coastline
ISBN-13: 9783639123463 / Angielski / Miękka / 2009 / 76 str.
Recent proxies suggest that, at the end of the last glacial, there was a significant increase in the injection of Agulhas rings into the South Atlantic. This event brought about a dramatic increase in the salt influx helping to re-start the Atlantic meridional overturning circulation. Until now the mechanism through which such large variation in ring production occurs has not been clear. In this book, two semi-analytical non-linear models of current retroflection from non-zonal coastline on the -plane are developed to explain this phenomenon. The critical value of the coastline slant is defined, which implies restricted possibilities for ring detachment from the retroflection area in the 'supercritical' range of . In the case of Agulhas region, rings can be injected only if the retroflection occurs beyond specific latitude where the angle is critical. This analysis should help in understanding the regimes of ring shedding by retroflected currents and should be useful for anyone studying the dynamics of currents, meridional overturning cell in the Atlantic and climate dynamics."
Recent proxies suggest that, at the end of the lastglacial, there was a significant increase in theinjection of Agulhas rings into the South Atlantic.This event brought about a dramatic increase in thesalt influx helping to re-start the Atlanticmeridional overturning circulation. Until now themechanism through which such large variation in ringproduction occurs has not been clear. In this book,two semi-analytical non-linear models of currentretroflection from non-zonal coastline on the β-planeare developed to explain this phenomenon. Thecritical value of the coastline slant γ is defined,which implies restricted possibilities for ringdetachment from the retroflection area in thesupercritical range of γ. In the case of Agulhasregion, rings can be injected only if theretroflection occurs beyond specific latitude wherethe angle is critical. This analysis should help inunderstanding the regimes of ring shedding byretroflected currents and should be useful for anyonestudying the dynamics of currents, meridionaloverturning cell in the Atlantic and climate dynamics.
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