Article
Version 1
Preserved in Portico This version is not peer-reviewed
Estimating Wave Direction by Using Terrestrial GNSS Reflectometry
Version 1
: Received: 5 April 2019 / Approved: 8 April 2019 / Online: 8 April 2019 (10:41:17 CEST)
A peer-reviewed article of this Preprint also exists.
Reinking, J.; Roggenbuck, O.; Even-Tzur, G. Estimating Wave Direction Using Terrestrial GNSS Reflectometry. Remote Sens. 2019, 11, 1027. Reinking, J.; Roggenbuck, O.; Even-Tzur, G. Estimating Wave Direction Using Terrestrial GNSS Reflectometry. Remote Sens. 2019, 11, 1027.
Abstract
The signal-to-noise ratio (SNR) data is part of the global navigation satellite systems (GNSS) observables. In a marine environment, the oscillation of the SNR data can be used to derive reflector heights. Since the attenuation of the SNR oscillation is related to the roughness of the sea surface, the significant wave height (SWH) of the water surface can be calculated from the analysis of the attenuation. The attenuation depends additionally on the relation between the coherent and the incoherent part of the scattered power. The latter is a function of the correlation length of the surface waves. Because the correlation length changes with respect to the direction of the line of sight relative to the wave direction, the attenuation must show an anisotropic characteristic. In this work, we present a method to derive the wave direction from the anisotropy of the attenuation of the SNR data. The method is investigated based on simulated data as well by the analysis of experimental data from a GNSS station in the North Sea.
Keywords
GNSS; reflectometry; SNR; wave direction
Subject
Environmental and Earth Sciences, Geophysics and Geology
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comments (0)
We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.
Leave a public commentSend a private comment to the author(s)
* All users must log in before leaving a comment