Geophysical flows

Much of my early work concerned the dynamics of large scale flows dominated by the influence of stratification and the Earth’s rotation, as arise in the Earth’s atmosphere and oceans. Other geophysical research subjects have included the dynamics of tektites, the dynamics of the Earth’s lithosphere, and the dynamics of sedimentation, as arises in the world’s rivers and lakes.┬áMy research group maintains an interest and activity in environmental fluid mechanics, specifically the role of drops and bubbles in the transport of biomaterial within the atmosphere and oceans.

Drops and bubbles in the environment


Bubbles and drops are ubiquitous in nature and play critical roles in many important environmental problems. Most … View Project

The drainage of glacial lakes and climate change


A cold event at around 8200 calendar years BP and the release, at around that time, of a huge freshwater outburst from … View Project

The dynamics of the Tibetan Plateau


Dynamic stresses developed in the deep crust as a consequence of flow of weak lower crust may explain anomalously high … View Project

Roll waves on flowing cornstarch suspensions


    We report a traveling wave instability in low Reynolds number flows of aqueous concentrated … View Project

The dynamics of splash-form tektites


Splash-form tektites are generally acknowledged to have the form of bodies of revolution. However, no detailed fluid … View Project

Sedimentation from particle clouds


We examine the settling of monodisperse heavy particles released into a fluid when the resulting motion is sufficiently … View Project

Sedimentation from riverine outflows


A series of laboratory experiments were conducted in order to elucidate the sediment-induced mixing processes … View Project

Line plumes in rotation: leads and megaplumes


The development of coherent vortices from the discharge of a 40 cm long line plume into a rotating stratified fluid, as … View Project

Drop motion in rapidly rotating flows


  Motivated by an interest in vigorous convection in the Earth's molten outer core, I devoted my doctoral … View Project