Defining the north Australian monsoon onset: A systematic review
Article
Article Title | Defining the north Australian monsoon onset: A systematic review |
---|---|
ERA Journal ID | 34380 |
Article Category | Article |
Authors | Lisonbee, Joel (Author), Ribbe, Joachim (Author) and Wheeler, Matthew (Author) |
Journal Title | Progress in Physical Geography: an international review of geographical work in the natural and environmental sciences |
Journal Citation | 44 (3), pp. 398-418 |
Number of Pages | 21 |
Year | 2020 |
Place of Publication | United Kingdom |
ISSN | 0309-1333 |
1477-0296 | |
Digital Object Identifier (DOI) | https://doi.org/10.1177/0309133319881107 |
Web Address (URL) | https://journals.sagepub.com/doi/10.1177/0309133319881107 |
Abstract | The annual Australian monsoon pattern includes an onset, or the much anticipated first active monsoon period of the season, but defining the monsoon onset has proven to be problematic. Since the first Australian monsoon onset definition by Troup (1961) there have been many others presented. There appears to be no universally accepted method to define the Australian monsoon onset, and therefore we present here an analysis of the methods that have been proposed. The aim of this paper is to systematically review the different methods used to define the Australian monsoon onset, adding to the work that has been done by other reviews for monsoon systems around the world. For the first time we identify the 25 different methods that have been published for the Australian monsoon/wet season onset and compare them to identify how well they align. When considering the 57 seasons where more than one onset definition is provided, the range of dates within the season can range over several months with the average range of 44 days and the largest range within a season of 78 days. Thus, we show that different onset definitions are capturing different events altogether and pin the “onset” to different dates throughout the progression of the north Australian wet season. Some capture a “wet season onset” while others capture the dynamical overturning of the atmosphere (i.e. the monsoon). In conclusion, our analysis finds that there is still a lack in real-time monitoring or prognostic capabilities of monsoon onset dates as well as a limited operational applicability despite a plethora of definitions. |
Keywords | monsoon, onset, wet season, climate variability, Australia, tropical circulation |
ANZSRC Field of Research 2020 | 370202. Climatology |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | School of Sciences |
Australian Bureau of Meteorology | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q56qq/defining-the-north-australian-monsoon-onset-a-systematic-review
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