Results 21 to 30 of about 1,121 (191)

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

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 radio occultation profiles in the neutral atmosphere from inversion of excess phase data

Terrestrial, Atmospheric and Oceanic Sciences, 2019
Long-term stability, global coverage and high resolution are characteristics that make the Global Navigation Satellite System (GNSS) radio occultation (RO) technique well-suitable to serve as anchor measurements for observing the Earth’s atmosphere.
Paweł Hordyniec, Cheng-Yung Huang, Chian-Yi Liu, Witold Rohm, Shu-Ya Chen   +4 more
doaj   +2 more sources

Effect of Multiple GNSS Integration on the Number and Spatiotemporal Coverage of Radio Occultation Events

Atmosphere, 2022
The development of global navigation satellite systems (GNSSs) and multi-system compatible radio occultation (RO) techniques provides favorable conditions and opportunities for increasing the number of occultation events and improving their ...
Congliang Liu, Yueqiang Sun, Weihua Bai, Qifei Du, Wei Li, Xi Wang, Peixian Li   +6 more
doaj   +2 more sources

An evaluation of GNSS radio occultation atmospheric profiles from Sentinel-6

Egyptian Journal of Remote Sensing and Space Science, 2023
The Global Navigation Satellite System (GNSS) radio occultation (RO) significantly impacts climate change monitoring. GNSS RO is based mainly on the refraction of the GNSS signals transmitted by satellites and received by a receiver on a Low Earth Orbit (
Mohamed Zhran
exaly   +3 more sources

Evaluation of Ionospheric Scintillation in GNSS Radio Occultation Measurements and Simulations [PDF]

Radio Science, 2020
Like any other system relying on trans-ionospheric propagation, GNSS Radio Occultation (GNSS-RO) is affected by ionospheric conditions during measurements.
Carlström, Anders,, Rasch, Joel, Sievert, Thomas, Ludwig Barbosa, Vinícius,, Sievert, Thomas,, Mats I. Pettersson, Viet T. Vu, Pettersson, Mats, Rasch, Joel,, Thomas Sievert, Ludwig Barbosa, Vinícius, Vinícius Ludwig‐Barbosa, Anders Carlström, Vu, Viet Thuy,, Pettersson, Mats,, Carlström, Anders, Vu, Viet Thuy, Joel Rasch   +17 more
core   +3 more sources

Planetary boundary layer height retrieval using GNSS Radio Occultation over Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2022
Global Navigation Satellite System (GNSS) Radio Occultation (RO) is an excellent remote sensing technique for sounding the atmosphere. GNSS satellites send signals through the atmosphere of the Earth, and a GNSS receiver mounted on a Low Earth Orbit (LEO)
Mohamed Zhran, Ashraf Mousa
doaj   +2 more sources

First Results of Airborne GNSS Radio Occultation Sounding From Airbus Commercial Aircraft

Geophysical Research Letters
The lack of high vertical resolution atmospheric thermodynamic structure observations inside or near major weather events impedes our understanding of physical processes and their predictability in numerical weather prediction (NWP) models.
Feiqin Xie, Kevin J. Nelson, Bryan C. Chan, Ashish Goel, Jonathan Kosh, Mike Vergalla   +5 more
doaj   +2 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
AbstractHigh‐resolution measurements from Global Navigation Satellite System (GNSS) radio occultation (RO) provide atmospheric profiles with independent information on altitude and pressure. This unique property is of crucial advantage when analyzing atmospheric characteristics that require joint knowledge of altitude and pressure or other ...
Scherllin-Pirscher B, Steiner AK, Kirchengast G, Schwärz M, Leroy SS.   +4 more
europepmc   +5 more sources