Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Hadley Circulation"”.
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Interannual variability of the Atlantic Hadley circulation in boreal summer and its impacts on tropical cyclone activity
… method was developed to define the regional Hadley circulation (HC) in terms of the meridional streamfunction. The interannual variability of the Atlantic HC in boreal summer was examined using the EOF analysis. The leading mode (M1), explaining more than 45% of the variances, is associated …
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The Effect of Orbital Forcing on the MJO’s Amplitude and Phase Speed
… increases, consistent with a stronger Hadley circulation, and the mean lower-tropospheric westerly winds shift southward over the Indo-Pacific warm pool. The increase in the tropical precipitation variance are explained using the linearized approximation of the non-linear …
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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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On the mechanism of the large-scale seasonally varying upwelling in the region of the tropical tropopause
… mass exchange. The global-scale mean meridional circulation in the lower stratosphere and the upward branch of the tropospheric Hadley circulation which form the two interrelated parts of atmospheric dynamics in the region of the tropical tropopause are considered together. The comparative roles …
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Simple Models for Complex Tropical Dynamics
… simplified simulations, and full general circulation models -- to study tropical phenomena including the Hadley Circulation, the Inter-Tropical Convergence Zone (ITCZ), the South Asian monsoon, Pacific and ENSO seasonality, the Walker Circulation, and the modeling of the tropical energy …
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Mechanisms and prediction of climate variability in tropical North Africa
… Atlantic. The monsoon systems control the mean circulation of this region. Superimposed on this basic state, large-scale variability dictates the life of the people and their socio-economic activities. The tropical North Africa climate exhibits a spectra! energy mainly in the ENSO and decadal …
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Tracer-Independent Approaches to Stratosphere-Troposphere Exchange and Tropospheric Air Mass Composition
… are first computed using an idealized circulation model that has topography only in the Northern Hemisphere (NH) and is run under perpetual NH winter conditions; suitable integrations are used to determine the stratospheric mean residence time and the mass fraction of the stratosphere …
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South Asian summer monsoon variability: a modelling study with the atmospheric regional climate model HIRHAM5
… monsoon season of South Asia. But, the monsoon circulation is not consistent throughout the entire summer season. Episodes of heavy rainfall (active periods) and low rainfall (break periods) are inherent to the intraseasonal variability of the South Asian summer monsoon. Extended breaks or …