contributor author | Narsey, Sugata | |
contributor author | Reeder, Michael J. | |
contributor author | Ackerley, Duncan | |
contributor author | Jakob, Christian | |
date accessioned | 2017-06-09T17:13:33Z | |
date available | 2017-06-09T17:13:33Z | |
date issued | 2017 | |
identifier issn | 0894-8755 | |
identifier other | ams-81368.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4224363 | |
description abstract | he initiation of Northern Australian monsoon rainfall bursts is accompanied by an increase in cyclonic circulation in the monsoon region. In this study we show that the change in circulation at the start of the composite rainfall burst is predominantly influenced by mid-latitude front-like features. By exploiting the relationship between circulation tendency and the convergence of absolute vorticity flux, we investigate the circulation changes accompanying the initiation of Australian monsoon bursts. Moisture flux convergence is found to be proportional to the circulation changes in the monsoon region. Using a composite analysis we show that absolute vorticity fluxes through the southern boundary are by far the most important influence on monsoon burst circulation changes, with only one third of events more closely related to other influences including the Madden-Julian Oscillation. This is shown to be true throughout the wet season. | |
publisher | American Meteorological Society | |
title | A Mid-Latitude Influence on Australian Monsoon Bursts | |
type | Journal Paper | |
journal volume | 030 | |
journal issue | 014 | |
journal title | Journal of Climate | |
identifier doi | 10.1175/JCLI-D-16-0686.1 | |
journal fristpage | 5377 | |
journal lastpage | 5393 | |
tree | Journal of Climate:;2017:;volume( 030 ):;issue: 014 | |
contenttype | Fulltext | |