- Title
- The different impact of positive-neutral and negative-neutral ENSO regimes on Australian tropical cyclones
- Creator
- Chand, Savin; Tory, Kevin; McBride, John; Wheeler, Matthew; Dare, Richard; Walsh, Kevin
- Date
- 2013
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/37931
- Identifier
- vital:5354
- Identifier
-
https://doi.org/10.1175/jcli-d-12-00769.1
- Identifier
- ISSN:0894-8755
- Abstract
- The number of tropical cyclones (TCs) in the Australian region exhibits a large variation between different ENSO regimes. While the difference in TC numbers and spatial distribution of genesis locations between the canonical El Nino and La Nina regimes is well known, the authors demonstrate that a statistically significant difference in TC numbers also exists between the recently identified negative-neutral and positive-neutral regimes. Compared to the negative-neutral and La Nina regimes, significantly fewer TCs form in the Australian region during the positive-neutral regime, particularly in the eastern subregion. This difference is attributed to concomitant changes in various large-scale environmental conditions such as sea level pressure, relative vorticity, vertical motion, and sea surface temperature.
- Relation
- Journal of Climate Vol. 26, no. 20 (October 2013), p. 8008-8016
- Rights
- © Copyright of Journal of Climate
- Rights
- This metadata is freely available under a CCO license
- Subject
- 0401 Atmospheric Sciences; ENSO; Tropical cyclones; Sea-Surface-Temperature; El-Nino; Southen-Oscillation; Southwest Pacific; Region; Frequency; Patterns; Model
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