- Title
- Spatial analysis of Australian seasonal rainfall anomalies and their relation to east coast lows on the Eastern-Seaboard
- Creator
- Twomey, Callum; Kiem, Anthony
- Relation
- 36th Hydrology and Water Resources Symposium: The art and science of water (HWRS2015). Proceedings of the 36th Hydrology and Water Resources Symposium (Hobart, Tas. 7-10 December, 2015) p. 1205-1212
- Publisher
- Engineers Australia
- Resource Type
- conference paper
- Date
- 2015
- Description
- This study identifies Australian rainfall districts that exhibit similar temporal variation, with the aim being to determine if the Eastern Seaboard of Australia (ESB) can be considered a homogenous region. The results suggest that the ESB is not homogenous. For winter three separate divisions are identified: (i) the most northerly division from Moreton (QLD) to the Manning region of NSW; (ii) the Hunter region south to the metropolitan Sydney area; and (iii) from Illawarra (NSW) to Eastern-central Victoria. For summer, autumn, and spring rainfall two clear divisions are present: (i) the two most northerly division identified in winter combined and (ii) and the equivalent of the third and most southerly outlined for winter. Investigation into the reasons for this spatial inhomogeneity in rainfall across the ESB reveals that different East Coast Low (ECL) subtypes are associated with different spatial and temporal rainfall patterns for different parts of the ESB during different months of the year. This is an important insight for natural resources management and emergency services within the heavily populated ESB because it demonstrates that existing climate related risks are different across the ESB and suggests that how those risks change into the future is also likely to be inconsistent across the ESB. This reinforces the need for locally relevant and practically useful climate science information and adaptation strategies - as opposed to State- or Country-wide information and adaptation approaches that are commonly used.
- Subject
- seasonal rainfall; Eastern Seaboard; east coast lows; Australia
- Identifier
- http://hdl.handle.net/1959.13/1330849
- Identifier
- uon:26488
- Identifier
- ISBN:9781922107497
- Language
- eng
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