Results 21 to 30 of about 14,356 (303)

High-order ionospheric effects on electron density estimation from Fengyun-3C GPS radio occultation [PDF]

Annales Geophysicae, 2017
GPS radio occultation can estimate ionospheric electron density and total electron content (TEC) with high spatial resolution, e.g., China's recent Fengyun-3C GPS radio occultation. However, high-order ionospheric delays are normally ignored.
J. Li, J. Li, S. Jin, S. Jin
doaj   +1 more source

A comparison of FORMOSAT-3/COSMIC radio occultation and ionosonde measurements in sporadic E detection over mid- and low-latitude regions

Frontiers in Astronomy and Space Sciences, 2023
The investigation of sporadic E or Es layers typically relies on ground-based or satellite data. This study compares the Es layers recorded in ionograms with those detected using GNSS L1 signal-to-noise ratio data from FORMOSAT-3/COSMIC radio occultation
S. Sobhkhiz-Miandehi, S. Sobhkhiz-Miandehi, Y. Yamazaki, C. Arras, C. Arras, D. Themens, D. Themens   +6 more
doaj   +1 more source

GNSS Radio Occultation in Advanced Numerical Weather Prediction Models

GEOmedia, 2019
GPS-Radio Occultation (GPS-RO), and generally, Global Navigation Satellite System Radio Occultation (GNSS-RO), is a technique that measures the refractivity of the Earth's atmosphere as a Low Earth Orbit (LEO) satellite listens to the radio signal of a ...
Guillermo Bosch
doaj   +3 more sources

Flower elliptical-orbit constellation exploiting millimetre-wave radiometry and radio occultation for meteo-climatological applications [PDF]

Advances in Geosciences, 2010
This paper reports on the potential of combining elliptical-orbit Flower constellations with millimeter-wave radiometry and radio-occultation, a mission concept briefly named FloRad2.
F. S. Marzano, D. Cimini
doaj   +1 more source

Space and ground segment performance and lessons learned of the FORMOSAT-3/COSMIC mission: four years in orbit [PDF]

Atmospheric Measurement Techniques, 2011
The FORMOSAT-3/COSMIC (Constellation Observing System for Meteorology, Ionosphere, and Climate) Mission consisting of six Low-Earth-Orbit (LEO) satellites is the world's first demonstration constellation using radio occultation signals from Global ...
C.-J. Fong, D. Whiteley, E. Yang, K. Cook, V. Chu, B. Schreiner, D. Ector, P. Wilczynski, T.-Y. Liu, N. Yen   +9 more
doaj   +1 more source

Radio occultation bending angle anomalies during tropical cyclones [PDF]

Atmospheric Measurement Techniques, 2011
The tropical deep convection affects the radiation balance of the atmosphere changing the water vapor mixing ratio and the temperature of the upper troposphere lower stratosphere.
R. Biondi, T. Neubert, S. Syndergaard, J. K. Nielsen   +3 more
doaj   +1 more source

Application of the Fengyun 3 C GNSS occultation sounder for assessing the global ionospheric response to a magnetic storm event [PDF]

Atmospheric Measurement Techniques, 2019
The rapid advancement of global navigation satellite system (GNSS) occultation technology in recent years has made it one of the most advanced space-based remote sensing technologies of the 21st century.
W. Bai, W. Bai, W. Bai, G. Wang, G. Wang, Y. Sun, Y. Sun, Y. Sun, J. Shi, J. Shi, J. Shi, G. Yang, X. Meng, X. Meng, D. Wang, D. Wang, Q. Du, Q. Du, X. Wang, X. Wang, J. Xia, J. Xia, Y. Cai, Y. Cai, C. Liu, C. Liu, W. Li, W. Li, C. Wu, C. Wu, D. Zhao, D. Zhao, D. Wu, D. Wu, C. Liu, C. Liu   +35 more
doaj   +1 more source

KOMPSAT-5 GNSS Radio Occultation Data Operations [PDF]

Geo Data, 2022
The Korea Aerospace Research Institute launched KOMPSAT-5 on August 22, 2013, and has been operating for 10 years. KOMPSAT-5 has SAR (Synthetic Aperture Radar) for earth observation missions, and collects data necessary for earth atmosphere analysis ...
Okchul Jung, Jaedong Seong, Myeongshin Lee, Daewon Chung   +3 more
doaj   +1 more source

Ganymede's Ionosphere Observed by a Dual‐Frequency Radio Occultation With Juno

Geophysical Research Letters, 2022
In June 2021, the Juno spacecraft executed a close flyby of Ganymede. During the encounter, Juno passed behind Ganymede for 15 min as observed from Earth, providing the geometry to conduct a radio occultation experiment to probe Ganymede's tenuous ...
D. R. Buccino, M. Parisi, E. Gramigna, L. Gomez‐Casajus, P. Tortora, M. Zannoni, A. Caruso, R. S. Park, P. Withers, P. Steffes, A. Hodges, S. Levin, S. Bolton   +12 more
doaj   +1 more source

Venus Express radio occultation observed by PRIDE [PDF]

, 2019
Context. Radio occultation is a technique used to study planetary atmospheres by means of the refraction and absorption of a spacecraft carrier signal through the atmosphere of the celestial body of interest, as detected from a ground station on Earth ...
Bocanegra-Bahamon, T. M., Calves, G. Molera, Cimo, G., Cui, L., Dirkx, D., Duev, D. A., Gurvits, L. I., Ipatov, A. V., Kharinov, M. A., Kondo, T., Li, P., Limaye, S., Lovell, J. E. J., Ma, M., McCallum, J. N., Mikhailov, A. G., Pogrebenko, S. V., Rosenblatt, P., Sekido, M., Wang, W., Zheng, W.   +20 more
core   +4 more sources