Simulation of the spatiotemporal aspects of land erodibility in the northeast Lake Eyre Basin, Australia, 1980-2006

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Title Simulation of the spatiotemporal aspects of land erodibility in the northeast Lake Eyre Basin, Australia, 1980-2006
Author Webb, Nicholas P.; McGowan, Hamish A.; Phinn, Stuart R.; McTainsh, Grant Harvey; Leys, John F.
Journal Name Journal of Geophysical Research
Year Published 2009
Place of publication USA
Publisher American Geophysical Union
Abstract This paper explores spatiotemporal patterns in land erodibility in the northeast portion of the Lake Eyre Basin, Australia, using the Australian Land Erodibility Model (AUSLEM) in simulations from 1980 to 2006. First, spatial patterns in land erodibility are examined. We then present an analysis of seasonal and interannual variations in land erodibility. Patterns in land erodibility change are compared to rainfall variability, the El Niño–Southern Oscillation (ENSO) and Pacific (inter-) Decadal Oscillation (PDO). Land erodibility is found to peak in the study area between early spring (September, October, November) and late summer (January, February, March), and reach a minimum over winter (June, July, August). Weak correlations are found between modeled land erodibility, rainfall, ENSO, and the PDO. The results indicate a complex landscape response to climate variability, with land erodibility dynamics being affected by antecedent rainfall and vegetation conditions which generate lag responses in land erodibility change. The research highlights the importance of developing methods for monitoring conditions driving variations in wind erosion at the landscape scale to enhance land management policy in arid and semiarid landscapes at a time of uncertain future climate changes.
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Copyright Statement Copyright 2009 American Geophysical Union. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
Volume 114
Page from 1
Page to 14
ISSN 0148-0227
Date Accessioned 2010-03-12
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Geophysics
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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