首页|On the quality of tropospheric estimates from low-cost GNSS receiver data processing
On the quality of tropospheric estimates from low-cost GNSS receiver data processing
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NSTL
Elsevier
The goal of this study is to verify whether the low-cost GNSS receivers may provide the tropospheric parameters with accuracy close to that of high-grade ones. In this way, we address a scientific question on the potential usability of low-cost receivers for climate monitoring. We assess zenith tropospheric delays (ZTD) and, for the first time, horizontal gradients derived from Precise Point Positioning with low-cost receivers. ZTD estimates are also validated against ERA5, which is the fifth generation reanalysis for the global climate and weather produced by the European Centre for Medium-Range Weather Forecasts. We proved that low-cost equipment has the potential to provide tropospheric estimates with comparable accuracy to high-grade receivers. We also reveal a high agreement between GNSS ZTDs and these of ERA5 reanalysis. Finally, we show that applying a surveying-grade antenna to a low-cost receiver may enhance the accuracy of the tropospheric estimates derived from mass-market receivers.
NSTL
Elsevier
