Journal article
Can contemporary satellites estimate swell dissipation rate?
H Jiang, AV Babanin, Q Liu, JE Stopa, B Chapron, G Chen
Remote Sensing of Environment | ELSEVIER SCIENCE INC | Published : 2017
Abstract
Swell dissipation can influence air-sea interactions and is an error source in numerical models. Remote sensors, including altimeters and synthetic aperture radars, were employed to estimate swell dissipation rates in previous studies. A detailed error analysis is conducted here to better understand the results of these studies. With the help of a numerical model, we find that the point source model cannot separate swell dissipation from frequency dispersion and angular spreading effectively. Monte Carlo simulations of remotely sensing an ideal swell packet show that the accuracy of the estimated dissipation rate depends on the number, the span, and the wave height error of the observations ..
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Awarded by Australian Research Council
Funding Acknowledgements
The altimeter data are from the CERSAT database (http://tinyurl.com/kg7kofg). The L2 SAR data were provided by the European Space Agency (ESA) and were analyzed using the swell tracking methodology developed by CLS. This work is supported by the National Key R & D Program of China (No. 2017YFC1404700) and National Natural Science Foundation of China (No. U1406405 and 41331172). AVB and Q. Liu acknowledge support from the DISI Australia-China Centre through grant ACSRF48199 and from the Australian Research Council Discovery Grant DP170100851. The authors would like to thank the anonymous reviewers for their helpful suggestions.