Periodic Fluctuations in deep water formation due to sea ice - Wednesday, January 21st/28th
16 Sep 2015 | Contributor(s):: Raj Saha
A simple dynamical model is used to demonstrate the possibility of stable and periodic variability in oceanic convection on a millennial timescale. Sea ice could act as a heat valve over the region of deep water formation in the North Atlantic, particularly during the last glacial period when sea...
Realistic modeling and analysis of synchronization dynamics in power-grid networks
08 May 2015 | | Contributor(s):: Takashi Nishikawa
An imperative condition for the functioning of a power-grid network is that its power generators remain synchronized. Disturbances can prompt desynchronization, which is a process that has been involved in large power outages. In this talk I will first give a comparative review of three leading...
Synchronization in power grid networks
07 May 2015 | | Contributor(s):: Suman Acharyya
This survey discusses Master Stability Function (MSF) analysis for determining stability of synchronization of coupled oscillators on network. In addition, we briefly discuss the derivation of the Swing equation that determine the dynamics of a node in power grid network, and...
The mid-Pleistocene transition as a transcritical bifurcation on a slow manifold - February 18m 2015
16 Sep 2015 | | Contributor(s):: Peter Ashwin
The Quaternary Period has been characterized by a cyclical series of glaciations, which are attributed to the change in the insolation (incoming solar radiation) from changes in the Earth’s orbit around the Sun. The spectral power in the climate record is very different from that of the orbital...