Ruby Krishnamurti

Area of research

Computational Mechanics · Atmospheric Science

Research interest

Research topics from publications: Impacts of enhanced CCN on the organization of convection and recent reduced counts of monsoon depressions; A Pathway Connecting the Monsoonal Heating to the Rapid Arctic Ice Melt*; Monsoonal intraseasonal oscillations in the ocean heat content over the surface layers of the Bay of Bengal; A Mechanism of the MJO Invoking Scale Interactions. Representative work: Abstract This study provides a monsoonal link to the rapid Arctic ice melt. Each year the planetary-scale African–Asian monsoonal outflow near the tropopause carries a large anticyclonic gyre that has a longitudinal spread that occupies nearly half of the entire tropics. In recent years, the South Asian summer monsoon has experienced increased rainfall over northwestern India and Pakistan and it has also contributed to more intense local anticyclonic outflows from this region. The western lobes of these intense upper-high-pressure areas carry outflows with large heat fluxes from the monsoon belt toward central Asia and eventually to the region of the rapid ice melt of the Canadian Arctic. In This chapter distinguishes the mechanism of tropical convective disturbances, such as a hurricane, from that of the Madden–Julian oscillation (MJO). The hurricane is maintained by organized convection around the azimuth. In a hurricane the organization of convection, the generation of eddy available potential energy, and the transformation of eddy available potential energy into eddy kinetic energy all occur on the scale of the hurricane and these are called “in-scale processes,” which invoke quadratic nonlinearity. The MJO is not a hurricane type of disturbance; organized convection simply does not drive an MJO in the same manner. The maintenance of the MJO is more akin to a multibody probl

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