MJO Propagation Shaped by Zonal Asymmetric Structures: Results from 24 GCM Simulations

Changes in the structure and propagation of the MJO with increasing CO2

Changes in the Madden-Julian Oscillation (MJO) with increasing CO2 concentrations are examined using the Goddard Institute for Space Studies Global Climate Model (GCM). Four simulations performed with fixed CO2 concentrations of 0.5, 1, 2, and 4 times preindustrial levels using the GCM coupled with a mixed layer ocean model are analyzed in terms of the basic state, rainfall, moisture and zonal ...

The MJO in a Coarse - Resolution GCM with a Stochastic

6 The representation of the Madden-Julian oscillation (MJO) is still a challenge for numerical 7 weather prediction and general circulation models (GCMs) due to the inadequate treat8 ment of convection and the associated interactions across scales by the underlying cumulus 9 parameterizations. One new promising direction is the use of the stochastic multicloud 10 model (SMCM) that have been des...

Asymmetric Light Propagation in Active Photonic Structures

This thesis will present a theoretical and numerical analysis of optical systems exhibiting non-reciprocity, with potential applications in the field of integrated opto-electronic circuits. We will carefully engineer structures with highly-asymmetric transport properties, where traits such as reflectance and transmittance are dependent upon the incident direction of the interrogating waves. Thi...

Dynamic Analysis of Asymmetric Structures Supported by a Sliding Foundation

Gcm Simulations of Martian Methane

Introduction: The spectroscopic detection of methane in the atmosphere of Mars is the first observation of an organic compound on that planet [1-3]. CH4 has a lifetime of a few centuries, which suggests a young or current source. On the other hand, this lifetime is long enough for the atmospheric circulation to yield a uniform distribution of CH4 across the planet, which is not what is observed...