Articles | Volume 11, issue 4
https://doi.org/10.5194/amt-11-2213-2018
https://doi.org/10.5194/amt-11-2213-2018
Research article
 | 
18 Apr 2018
Research article |  | 18 Apr 2018

Improved model for correcting the ionospheric impact on bending angle in radio occultation measurements

Matthew J. Angling, Sean Elvidge, and Sean B. Healy

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Cited articles

Angrisano, A., Gaglione, S., Gioia, C., Massaro, M., and Troisi, S.: Benefit of the NeQuick Galileo Version in GNSS Single-Point Positioning, International Journal of Navigation and Observation, 2013, 302947, https://doi.org/10.1155/2013/302947, 2013. 
Bilitza, D. and Reinisch, B. W.: International Reference Ionosphere 2007: Improvements and new parameters, J. Adv. Space Res., 42, 599–609, 2008. 
Chu, Y.-H., Wu, K.-H., and Su, C.-L.: A new aspect of ionospheric E region electron density morphology, J. Geophys. Res., 114, A12314, https://doi.org/10.1029/2008JA014022, 2009. 
Danzer, J., Scherllin-Pirscher, B., and Foelsche, U.: Systematic residual ionospheric errors in radio occultation data and a potential way to minimize them, Atmos. Meas. Tech., 6, 2169–2179, https://doi.org/10.5194/amt-6-2169-2013, 2013. 
Danzer, J., Healy, S. B., and Culverwell, I. D.: A simulation study with a new residual ionospheric error model for GPS radio occultation climatologies, Atmos. Meas. Tech., 8, 3395–3404, https://doi.org/10.5194/amt-8-3395-2015, 2015. 
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Short summary
GPS radio occultation (GPS-RO) is a method of probing the atmosphere using GPS signals. Such measurements can be assimilated into operational numerical weather prediction (NWP) systems and can reduce stratospheric temperature biases. This indicates that they could have an important role in climate monitoring and climate reanalyses. However, the measurements must be corrected to account for the effects of the ionosphere and this paper proposes an enhanced correction that removes residual biases.