BEACH SLOPES FROM SATELLITE-DERIVED SHORELINES

Kilian Vos; Mitchell D. Harley; Kristen D. Splinter; Andrew Walker; Ian L. Turner

doi:10.9753/icce.v36v.sediment.36

No. 36v (2020), Sediment Transport and Morphology

No. 36v (2020)

BEACH SLOPES FROM SATELLITE-DERIVED SHORELINES

Sediment Transport and Morphology

https://doi.org/10.9753/icce.v36v.sediment.36

Published 2020-12-28

Kilian Vos
Mitchell D. Harley
Kristen D. Splinter
Andrew Walker
Ian L. Turner

Kilian Vos

Mitchell D. Harley

Kristen D. Splinter

Andrew Walker

Ian L. Turner

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How to Cite

Vos, K., Harley, M. D., Splinter, K. D., Walker, A., & Turner, I. L. (2020). BEACH SLOPES FROM SATELLITE-DERIVED SHORELINES. Coastal Engineering Proceedings, (36v), sediment.36. https://doi.org/10.9753/icce.v36v.sediment.36

Abstract

The slope of the beach face is a critical parameter for coastal scientists and engineers studying sandy coastlines. However, despite its importance for coastal applications (engineering formulations, coastal flood modelling, swimming safety), it remains extremely difficult to obtain reliable estimates of the beachface slope over large spatial scales (hundreds to thousands of km of coastline). This presentation describes a new method to estimate the beach-face slope exclusively from space-borne observations: shoreline positions derived from publicly available optical imaging satellites and tide heights from satellite altimetry. This new technique is first validated against field measurements and then applied across hundreds of beaches in eastern Australia and California, USA (data available at http://coastsat.wrl.unsw.edu.au/).

Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/U9zMbFX4gPk

https://doi.org/10.9753/icce.v36v.sediment.36

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References

Vos, K., Harley, M.D., Splinter, K.D., Walker, A. and Turner, I.L. (2020), Beach Slopes From Satellite‐Derived Shorelines. Geophys. Res. Lett., 47: e2020GL088365. doi:10.1029/2020GL088365

Vos K., Harley M.D., Splinter K.D., Simmons J.A., Turner I.L. (2019). Sub-annual to multi-decadal shoreline variability from publicly available satellite imagery. Coastal Engineering. 150, 160–174. https://doi.org/10.1016/j.coastaleng.2019.04.004

Vos K., Splinter K.D., Harley M.D., Simmons J.A., Turner I.L. (2019). CoastSat: a Google Earth Engine-enabled Python toolkit to extract shorelines from publicly available satellite imagery. Environmental Modelling and Software. 122, 104528. https://doi.org/10.1016/j.envsoft.2019.104528

Bishop‐Taylor, R., Sagar, S., Lymburner, L., & Beaman, R. J. (2019). Between the tides: Modelling the elevation of Australia's exposed intertidal zone at continental scale. Estuarine, Coastal and Shelf Science, 223(October 2018), 115–128. https://doi.org/10.1016/j.ecss.2019.03.006

Carrere, L., Lyard, F., Cancet, M., Guillot, A., & Picot, N. (2016). FES 2014, a new tidal model—Validation results and perspectives for improvements. In Proceedings of the ESA living planet symposium (pp. 9–13). https://www.aviso.altimetry.fr/

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.

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BEACH SLOPES FROM SATELLITE-DERIVED SHORELINES

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