Remote Quantification of Nearshore Wave Energy Dissipation Rates from Coherent X-Band Radar Backscatter

Stresser, M.; Horstmann, J.

Confpaper

Remote Quantification of Nearshore Wave Energy Dissipation Rates from Coherent X-Band Radar Backscatter

Abstract

We present an efficient, new methodology to remotely estimate nearshore wave energy dissipation using a shore based coherent-on-receive marine radar (CMR). The CMR measures the backscatter intensity as well as the Doppler shift velocity from the sea surface scattering. We show by comparisons to simulations that the spatial difference of the Doppler velocity is related to local roller dissipation rates. From the spatial distribution of the radar derived dissipation, the offshore significant wave height can be estimated with a root-mean-square error of 23 cm with bias of 4 cm when compared to a moored wave rider buoy at a distance of 1.1 km from the shore line.

DOI Link to Publication

URL: https://publications.hereon.de/id/38447/
Authors:Stresser, M., Horstmann, J.
Year:2019
In: 2019 IEEE/OES Twelfth Current, Waves and Turbulence Measurement (CWTM)
Pages:1 - 6
Publisher:IEEE, Piscataway
Type:Confpaper
ISBN: 978-1-5386-5485-9
Cite as: Stresser, M.; Horstmann, J.: Remote Quantification of Nearshore Wave Energy Dissipation Rates from Coherent X-Band Radar Backscatter . In: 2019 IEEE/OES Twelfth Current, Waves and Turbulence Measurement (CWTM). Piscataway: IEEE, 2019. 1 - 6. (DOI: /10.1109/CWTM43797.2019.8955284) (ISBN: 978-1-5386-5485-9)