Estimation of sea level variations with GPS/GLONASS-reflectometry techniqueстатья

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Дата последнего поиска статьи во внешних источниках: 24 апреля 2018 г.

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[1] Estimation of sea level variations with gps/glonass-reflectometry technique / A. M. Padokhin, G. A. Kurbatov, E. S. Andreeva et al. // Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics. — Vol. 10466. — Bellingham, WA, United States: Bellingham, WA, United States, 2017. — P. 104667J–1–104667J–4. In the present paper we study GNSS - reflectometry methods for estimation of sea level variations using a single GNSS receiver, which are based on the multipath propagation effects caused by the reflection of navigational signals from the sea surface. Such multipath propagation results in the appearance of the interference pattern in the Signal-to-Noise Ratio (SNR) of GNSS signals at small satellite elevation angles, which parameters are determined by the wavelength of the navigational signal and height of the antenna phase center above the reflecting sea surface. In current work we used GPS and GLONASS signals and measurements at two working frequencies of both systems to study sea level variations which almost doubles the amount of observations compared to GPS-only tide gauge. For UNAVCO sc02 station and collocated Friday Harbor NOAA tide gauge we show good agreement between GNSS-reflectometry and traditional mareograph sea level data. [ DOI ]

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