Ocean-Atmosphere Exchange at the Small Scale

Description

Have you ever seen ripples forming on the surface of a lake on a blustery day? These ripples seem to “chase” after the wind. Similar effects occur over the world’s oceans, driven by both small scale (10s of meters to a few kilometers) phenomena in both the atmosphere and ocean. These dynamics may be extremely important for exchanging heat, momentum and carbon dioxide between the air and sea. However, only the most sophisticated numerical weather and climate models can simulate these gusty exchanges. Instead, most models use a set of approximations known as “bulk formula” that struggle in gusty, low wind speed regions. Thankfully, next generation numerical models and satellite synthetic aperture radar (SAR) systems are providing the tools needed to study these dynamics directly.  In this project, the student will combine satellite and in-situ observations with numerical modelling to quantify the impact of small-scale atmospheric and oceanic dynamics on the exchange across the air-sea interface, with a goal of improving our understanding of small-scales feedback to broader climate system. The improved process-based understanding may even be used to improve the bulk formula, which would improve climate, weather and ocean models across the world. Collaborations with the Australian Center of Excellence for 21st Century Weather, and internationally, is expected.

Desired background

An undergraduate degree in physics, mathematics, or engineering with Honours (H1 or H1E) or a Master by Research, with strong mathematical skills. Solid programming skills are highly desirable. The successful applicant must meet Australian Government requirements and UNSW PhD entry standards.