Abstract In this paper, we analyze both the impact of solar radiation during doy 173 to 175 of 2015 on the global ionosphere and the magnetic field, and the influence of higher-order ionosphere on observation and static precise point positioning during a geomagnetic storm. Numerical experimental results show that, affected by the coronal mass ejection in doy 173, the magnetic field is disturbed by a large geomagnetic storm. The maximal second-order ionospheric correction of L1 and L2 is 20 mm and 40 mm. The maximal third-order ionospheric correction of L1 and L2 is 2 mm and 5 mm. Furthermore, the influence of HOI on PPP is mainly visible in the northern direction, showing a southward migration trend, where the maximal influence value is up to 7.1 mm. But the maximal influence value in the direction of U, E is up to 4.6 mm, and is disordered.
LI Yangyang,LIU Zhimin,UO Jinyun et al. Influence of Higher-Order Ionospheric Delay on PPP during Geomagnetic Storm in June 2015[J]. jgg, 2017, 37(8): 845-848.
LI Yangyang,LIU Zhimin,UO Jinyun et al. Influence of Higher-Order Ionospheric Delay on PPP during Geomagnetic Storm in June 2015[J]. jgg, 2017, 37(8): 845-848.