Inverse modelling of GNSS multipath for sea level measurements - initial results
Paper i proceeding, 2016

We present a new method to retrieve sea level from GNSS SNR data that relies upon inverse modelling of the detrended SNR. This method can simultaneously use data from both GPS and GLONASS, and both L1 and L2 frequencies, to improve the solution with respect to prior studies. Results from the GNSS-R installation at Onsala Space Observatory are presented and the retrieved sea level heights are compared with a co-located pressure mareograph. The method is found to give an RMS error of 1.8 cm. The results are also compared against previous implementations of GNSS tide gauges and found to have lower RMS than both the earlier SNR algorithm and also the dual receiver, phase delay method.

GNSS-R

Reflectometry

Tide gauge

Inverse modelling

Sea level

Författare

Joakim Strandberg

Chalmers, Rymd- och geovetenskap, Rymdgeodesi och geodynamik

Thomas Hobiger

Chalmers, Rymd- och geovetenskap, Rymdgeodesi och geodynamik

Rüdiger Haas

Chalmers, Rymd- och geovetenskap, Rymdgeodesi och geodynamik

Proceedings of the International Geoscience and Remote Sensing Symposium (IGARSS) Volume 2016-November, 1 November 2016, Article number 7729479, Pages 1867-1869 36th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016; Beijing; China; 10 - 15 July 2016

Vol. 2016-November 1867-1869 7729479

Ämneskategorier

Fjärranalysteknik

Oceanografi, hydrologi, vattenresurser

Signalbehandling

Fundament

Grundläggande vetenskaper

Infrastruktur

Onsala rymdobservatorium

DOI

10.1109/IGARSS.2016.7729479

ISBN

9781509033324