Accuracy Evaluation of Ionospheric Delay from Multi-Scale Reference Networks and Its Augmentation to PPP during Low Solar Activity

Lewen Zhao, Jan Dousa, Pavel Václavovic. Accuracy Evaluation of Ionospheric Delay from Multi-Scale Reference Networks and Its Augmentation to PPP during Low Solar Activity. ISPRS Int. J. Geo-Information, 10(8):516, 2021. [doi]