Global ETD Search
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Showing 1 to 9 of 9 for “"Hadley cell"”.
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The summer hemisphere Hadley cell.
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1972.
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The effect of topography on the Martian atmospheric circulation and determining Pluto's atmospheric thermal structure from stellar occultations
… in Martian topography causes asymmetries in the Hadley cells at equinox and in the annual average. To quantitatively solve for the latitude of the dividing streamline and poleward boundaries of the cells, the Hadley cell model of Lindzen and Hou [1988, J. Atmos Sci. 45, 216-2427] was modified to …
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Gulf Stream temperature, salinity and transport during the last millennium
… data is southward migration of the Atlantic Hadley circulation during the LIA. Scaling of the δ18Ow records to salinity using the modern low-latitude δ18Ow-S slope produces an unrealistic reversal in the salinity gradient between the two sites. Only if C180 w is scaled to salinity using a …
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Evaluating the trend and impact factors of Southeast Asian monsoon
… post-reversal comes from the strengthened Hadley and Walker cell due to the increasing meridional equivalent potential temperature ([theta]e) gradient. The meridional [theta]e gradient shows significant correlation with the precipitation time-series at r = 0.52 (p = 0.0015), despite …
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High-Latitude Southern Hemisphere Climate Variability, Trends, and Tropical Forcing.
… Walker Circulation, an intensification of the Hadley Cell, and the subsequent initiation of atmospheric Rossby waves, are found to be key components forcing spring-time circulation changes in the SH. Via the impacts on the atmospheric circulation, Atlantic teleconnections also promote a pattern …
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Event characteristics of intra-seasonal climate circulations
… which strengthens the southern branch of the Hadley Cell. The effect of this is to increase the strength of the subtropical jet through enhanced poleward flux of angular momentum. The resulting increase in baroclinicity in the South Atlantic Ocean then disrupts rainfall over South Africa …
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Atmosphere-vegetation interactions over South Africa
… high pressures. A southwards extension of the Hadley Cell was also suggested, as well as changes in sensible and latent heat fluxes, relating to precipitation and temperature changes. It is suggested that changes may be in response to the general drying out of the country and the associated …
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Characterisations of Different El Nino Types, their Physical Causes and Predictions
… caused by an intensification of both, Walker and Hadley cell. The ability of climate models to simulate and predict EN is assessed with data from the Climate Model Inter-comparison Project 5 (CMIP5). Most models are able to capture the main features of different EN types. But models struggle to …
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Convection in a differentially heated rotating spherical shell of Boussinesq fluid with radiative forcing
… with transition from one to multiple convective cells, in a dfferentially heated, co-rotating spherical shell. In particular, we find that hysteresis can be observed without transition from one to multiple convective cells. Another important observation is that the transition to multiple …