Tropospheric monitoring using a low-cost GNSS receiver

C. Oikonomou; I.-A. Karolos; S. Bitharis; C. Pikridas; H. Haralambous

doi:10.1117/12.2680759

21 September 2023 Tropospheric monitoring using a low-cost GNSS receiver

C. Oikonomou, I.-A. Karolos, S. Bitharis, C. Pikridas, H. Haralambous

Proceedings Volume 12786, Ninth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2023); 127860K (2023) https://doi.org/10.1117/12.2680759
Event: Ninth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2023), 2023, Ayia Napa, Cyprus

Abstract

Remote sensing of the atmosphere with high-grade Global Navigation Satellite System (GNSS) is nowadays an established technique in GNSS-Meteorology. GNSS signal propagation delay in the troposphere provides information of Water Vapor (WV), which is the most abundant greenhouse gas (accounting for ~70% of global warming) and not well-estimated by the current meteorological models. GNSS derived WV has been proved a valuable data source for high-resolution limited area Numerical Weather Prediction (NWP) models. Nowadays, low-cost commercial GNSS modules can provide raw GNSS data for several positioning engineering applications. The goal of this study is to assess the potential of a low-cost GNSS receiver in tropospheric monitoring with an accuracy close to that of high-grade receiver with clear advantages in cost, size and power consumption. A comparative study between a LeicaGR30 high-grade geodetic receiver, and a low-cost, GNSS Receiver dual frequency based on a sino gnssK803 OEM product is undertaken to explore the potential of the low-cost devices for sensing the troposphere. The housing and operation firmware of the low-cost receiver were developed by Cloudwater Ltd. A measurement campaign for a two-month period (February – March 2023) was carried out in order to investigate the signal strength and Integrated Water Vapor (IWV) estimation. For this purpose, a GNSS signal splitter was connected with the two receivers under test and all data were recorded with a single Leica AR20 choke ring antenna at Klirou which is about 25 Km SW from Nicosia.

Citation Download Citation

C. Oikonomou, I.-A. Karolos, S. Bitharis, C. Pikridas, and H. Haralambous "Tropospheric monitoring using a low-cost GNSS receiver", Proc. SPIE 12786, Ninth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2023), 127860K (21 September 2023); https://doi.org/10.1117/12.2680759

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