QZSS TEC Estimation and Validation Over South Korea
1
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
The ionosphere acts as the largest error source in the Global Navigation Satellite System (GNSS) signal transmission. Ionospheric total electron content (TEC) is also easily affected by changes in the space environment, such as solar activity and geomagnetic storms. In this study, we analyze changes in the regional ionosphere using the Qusai-Zenith Satellite System (QZSS), a regional satellite navigation system. Observations from 9 GNSS stations in South Korea are used for estimating the QZSS TEC. In addition, the performance of QZSS TEC is analyzed with observations from day of year (DOY) 199 to 206, 2023. To verify the performance of our results, we compare the estimated QZSS TEC and CODE Global Ionosphere Map (GIM) at the same location. Our results are in good agreement with the GIM product provided by the CODE over this period, with an averaged difference of approximately 0.1 TECU and a root mean square (RMS) value of 2.89 TECU.
Abstract
The ionosphere acts as the largest error source in the Global Navigation Satellite System (GNSS) signal transmission. Ionospheric total electron content (TEC) is also easily affected by changes in the space environment, such as solar activity and geomagnetic storms. In this study, we analyze changes in the regional ionosphere using the Qusai-Zenith Satellite System (QZSS), a regional satellite navigation system. Observations from 9 GNSS stations in South Korea are used for estimating the QZSS TEC. In addition, the performance of QZSS TEC is analyzed with observations from day of year (DOY) 199 to 206, 2023. To verify the performance of our results, we compare the estimated QZSS TEC and CODE Global Ionosphere Map (GIM) at the same location. Our results are in good agreement with the GIM product provided by the CODE over this period, with an averaged difference of approximately 0.1 TECU and a root mean square (RMS) value of 2.89 TECU.
참고문헌 (13)
- E. L. Afraimovich, "Geomagnetic control of the spectrum of traveling ionospheric disturbances based on data from a global GPS network", Radiophysics and Quantum Electronics, 44(10), pp.763~773 (2001), Springer Science and Business Media LLC[DOI]
- Calais, E., "GPS, earthquakes, the ionosphere, and the space shuttle", Phys. Earth Planet Inter, 105, pp.167~181 (1998)[DOI]
- Byung-Kyu Choi, "Comparison of GPS receiver DCB estimation methods using a GPS network", Earth, Planets and Space, 65(7), pp.707~711 (2013), Springer Science and Business Media LLC[DOI]
- K. Davies, "Studying the ionosphere with the Global Positioning System", Radio Science, 32(4), pp.1695~1703 (1997), American Geophysical Union (AGU)[DOI]
- Junxian Fu, "Characterization of Ionospheric Disturbances Following Multiple Typhoons Using GPS‐Derived TEC", Journal of Geophysical Research: Space Physics, 128(1) (2022), American Geophysical Union (AGU)[DOI]
- Kosuke Heki, "Ionospheric signatures of repeated passages of atmospheric waves by the 2022 Jan. 15 Hunga Tonga-Hunga Ha’apai eruption detected by QZSS-TEC observations in Japan", Earth, Planets and Space, 74(1), pp.112~ (2022), Springer Science and Business Media LLC[DOI]
- Hofmann-Wellenhof, B., "Global Positioning System: Theory and Practice" (1993), Springer-Verlag
- Gabor E. Lanyi, "A comparison of mapped and measured total ionospheric electron content using global positioning system and beacon satellite observations", Radio Science, 23(4), pp.483~492 (1988), American Geophysical Union (AGU)[DOI]
- Anthony J Mannucci, "Assessment of global TEC mapping using a three-dimensional electron density model", Journal of Atmospheric and Solar-Terrestrial Physics, 61(16), pp.1227~1236 (1999), Elsevier BV[DOI]
- Y. Otsuka, "A new technique for mapping of total electron content using GPS network in Japan", Earth, Planets and Space, 54(1), pp.63~70 (2014), Springer Science and Business Media LLC[DOI]
- Yafeng Wang, "BDS and Galileo: Global Ionosphere Modeling and the Comparison to GPS and GLONASS", Remote Sensing, 14(21), pp.5479~ (2022), MDPI AG[DOI]
- Wilson, B. D., "Instrumental biases in ionospheric measurements derived from GPS data", ION GPS 1993, pp.1343~1351 (1993), Institute of Navigation
- Irina Zakharenkova, "GPS and GLONASS observations of large‐scale traveling ionospheric disturbances during the 2015 St. Patrick's Day storm", Journal of Geophysical Research: Space Physics, 121(12), pp.12138~12156 (2016), American Geophysical Union (AGU)[DOI]