Climate-driven changes in tropical cyclone intensity shape dune activity on Earth's largest sand island

Levin, Noam (2011) Climate-driven changes in tropical cyclone intensity shape dune activity on Earth's largest sand island. Geomorphology, 125 1: 239-252. doi:10.1016/j.geomorph.2010.09.021


Author Levin, Noam
Title Climate-driven changes in tropical cyclone intensity shape dune activity on Earth's largest sand island
Journal name Geomorphology   Check publisher's open access policy
ISSN 0169-555X
1872-695X
Publication date 2011-01-01
Year available 2010
Sub-type Article (original research)
DOI 10.1016/j.geomorph.2010.09.021
Volume 125
Issue 1
Start page 239
End page 252
Total pages 14
Place of publication Amsterdam, Netherlands
Publisher Elsevier BV
Collection year 2011
Language eng
Formatted abstract
In this study historical aerial photos and detailed climatic time series are used to show the geomorphological consequences of a significant decrease in tropical cyclone frequency and intensity in eastern Australia since the early 1980s, leading to rapid dune stabilization on Earth's largest sand island and a World Heritage Site, Fraser Island, Australia. It is shown that cyclone frequency and intensity significantly declined in eastern Australia (south of 20°S) since the early 1980s, corresponding with the shift to a positive phase of the Interdecadal Pacific Oscillation (in 1977) and an increased frequency of ENSO events since 1982-83. Using historical aerial photos and remote sensing techniques it is shown that most of Fraser Island's transgressive dune fields were advancing inland during the period between 1948 and 1982, and that tropical cyclones in that period were strong enough to initiate small blow outs (< 1. ha). However, the decline in sand drift potential by wind since 1982 resulted in the contraction of the area of Fraser Island's dune fields, at an average rate of 0.5% of their area per year.
© 2010 Elsevier B.V.
Keyword Coastal dunes
Tropical cyclones
Aerial photos
Drift potential
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 30 September 2010.

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Geography, Planning and Environmental Management Publications
Official 2011 Collection
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 20 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 22 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Sun, 16 Jan 2011, 00:09:15 EST