Tag Archive: Atmospheric circulation

ANU01: Southern Hemisphere atmospheric circulation

July 19, 2021 1:35 pm Published by Comments Off on ANU01: Southern Hemisphere atmospheric circulation

Anthropogenic climate change has been most clearly observed in the world's midlatitude regions. The limited number of observations for the Southern Hemisphere has prevented the development of a long-term understanding of these changes. This project aims to fill this critical gap by examining daily changes in Southern Hemisphere atmospheric circulation back to 1830. To do this, the project will build on recently recovered daily instrumental weather observations for southern Australia.

Research brief: What drives extreme heat events in spring?

March 9, 2021 3:38 pm Published by Comments Off on Research brief: What drives extreme heat events in spring?

Maximum temperatures in Australia during spring have exceeded historic records on multiple occasions in recent years. Understanding what drives these high temperatures may lead to better forecasts of extreme heat in the future.

Research brief: How El Niños impact climate in the southwest Indian OCean

March 9, 2021 3:13 pm Published by Comments Off on Research brief: How El Niños impact climate in the southwest Indian OCean

El Niño effects are communicated to the Indian Ocean via both large‐scale atmospheric circulation changes over the southern tropical ocean basin and via disturbances to sea‐levels along the coast of Western Australia. CLEX researchers investigated these remote ENSO influences in a state‐of‐the‐art climate model.

Research brief: New model explores the relationship between humidity, instability, and precipitation in the tropics

November 26, 2019 9:57 am Published by Comments Off on Research brief: New model explores the relationship between humidity, instability, and precipitation in the tropics

In this paper, CLEX researchers considered the steady-state response of the atmosphere to an imposed large-scale flow. They found that under these steady-state conditions, humidity increases with the precipitation rate, while the lapse rate (rate of decrease of temperature with height) increases.