Results 21 to 30 of about 2,499 (207)

GNSS Radio Occultation Data in the AWS Cloud

Earth and Space Science
Radio occultation (RO) by the Earth's atmosphere of the transmitted signals of the Global Navigation Satellite Systems' satellites has improved numerical weather prediction, has benefited atmospheric process studies, and benchmarked climate change by its
S. S. Leroy, A. E. McVey, S. M. Leidner, H. Zhang, H. Gleisner   +4 more
doaj   +2 more sources

GNSS Signal Jamming as Observed From Radio Occultation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The jamming is found to increase significantly in recent years, and its impact is evident in Global Navigation Satellite System (GNSS) radio occultation (RO) measurements, such as those from COSMIC-2.
Dong L. Wu
doaj   +2 more sources

The effect of solar radio bursts on the GNSS radio occultation signals

Journal of Geophysical Research: Space Physics, 2013
AbstractSolar radio burst (SRB) is the radio wave emission after a solar flare, covering a broad frequency range, originated from the Sun's atmosphere. During the SRB occurrence, some specific frequency radio wave could interfere with the Global Navigation Satellite System (GNSS) signals and therefore disturb the received signals.
Yue, X., Schreiner, W., Kuo, Y., Zhao, B., Wan, W., Ren, Z., Liu, L., Wei, Y., Lei, J., Solomon, S., Rocken, C.   +10 more
openaire   +5 more sources

Analysis of GNSS radio occultation data from satellite ZH-01

Earth and Planetary Physics, 2018
The electromagnetic satellite Zhangheng 01 (ZH-01) was successfully launched on February 2, 2018. The GNSS Radio Occultation (GRO) receiver on board the satellite is able to observe the occultation events of GPS and BeiDou navigation satellites.
Yan Cheng, Jian Lin, XuHui Shen, Xiang Wan, XinXing Li, WenJun Wang   +5 more
doaj   +2 more sources

Atmospheric polarimetric effects on GNSS radio occultations: the ROHP-PAZ field campaign [PDF]

Atmospheric Chemistry and Physics, 2016
This study describes the first experimental observations showing that hydrometeors induce polarimetric signatures in global navigation satellite system (GNSS) signals. This evidence is relevant to the PAZ low Earth orbiter, which will test the concept
R. Padullés, E. Cardellach, M. de la Torre Juárez, S. Tomás, F. J. Turk, S. Oliveras, C. O. Ao, A. Rius   +7 more
doaj   +4 more sources

Probability of intense precipitation from polarimetric GNSS radio occultation observations. [PDF]

Q J R Meteorol Soc, 2018
There is currently a gap in satellite observations of the moisture structure during heavy precipitation conditions, since infrared and microwave sounders cannot sense water‐vapour structure near the surface in the presence of intense precipitation. Conversely, Global Navigation Satellite System (GNSS) radio occultations (RO) can profile the moisture ...
Cardellach E, Padullés R, Tomás S, Turk FJ, Ao CO, de la Torre-Juárez M.   +5 more
europepmc   +4 more sources

The power of vertical geolocation of atmospheric profiles from GNSS radio occultation. [PDF]

J Geophys Res Atmos, 2017
Scherllin-Pirscher B, Steiner AK, Kirchengast G, Schwärz M, Leroy SS.   +4 more
europepmc   +2 more sources

Analysis of the differences between GPS radio occultation and radiosonde atmosphere profiles in Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2022
Difference values between Global Positioning System (GPS)-Radio Occultation (RO) and radiosonde (RS) profiles are analyzed to assess the integration applicability between them in Egypt.
Ibrahim Fouad Ahmed, Mohamed Amin Abd El-Fatah, Ashraf El-Kutb Mousa, Gamal El-Fiky   +3 more
doaj   +1 more source

Experimental Validation of GNSS Interferometric Radio Occultation [PDF]

Remote Sensing, 2019
In this work, we present experimental results on the interferometric radio occultation (iRO) signal processing techniques, and compare the performance to the closed-loop and open-loop processing used in conventional radio occultation measurements. We also discuss the effects of antenna beam width to mitigate inter-satellite interferences, as well as ...
Serni Ribó, Weiqiang Li, Estel Cardellach, Fran Fabra, Ramon Padullés, Antonio Rius, Manuel Martín-Neira   +6 more
openaire   +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