Research output: Contribution to journal › Article › peer-review
Andreas C.W. Baas, Derek D.W. Jackson, Irene Delgado‐Fernandez, Kevin Lynch, J. Andrew G. Cooper
Original language | English |
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Pages (from-to) | 1817-1827 |
Number of pages | 11 |
Journal | EARTH SURFACE PROCESSES AND LANDFORMS |
Volume | 45 |
Issue number | 8 |
Early online date | 4 Mar 2020 |
DOIs | |
Accepted/In press | 14 Feb 2020 |
E-pub ahead of print | 4 Mar 2020 |
Published | 30 Jun 2020 |
Additional links |
Using wind run to_BAAS_Accepted14Feb2020_ePublished4Mar2020_GREEN AAM
Using_wind_run_to_BAAS_Accepted14Feb2020_ePublished4Mar2020_GREEN_AAM.pdf, 1.21 MB, application/pdf
Uploaded date:11 Mar 2020
Version:Accepted author manuscript
Conventional aeolian sand transport models relate mass transport rate to wind speed or shear velocity, usually expressed and empirically tested on a 1-s time scale. Projections of total sand delivery over long time scales based on these models are highly sensitive to any small bias arising from statistical fitting on empirical data. We analysed time series of wind speed and sand transport rate collected at 14 independent measurement stations on a beach during a prior field experiment. The results show that relating total sand drift to cumulative above-threshold wind run yields models which are more statistically robust when fitted on empirical data, generating smaller prediction errors when projected to longer time scales. Testing of different power exponents indicates that a linear relationship between sand drift and above-threshold wind run yields the best results. These findings inspire a speculative novel phenomenological model relating the mass flow of air in the boundary layer to the mass transport of sand over the surface.
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