Results 11 to 20 of about 847,572 (191)

An Overview on GNSS Radio Occultation [PDF]

open access: yes, 2010
An overview on GNSS Radio Occultation (GNSS-RO) technique and its application in geodesy and atmospheric research was presented at the Institute of Astronomical and Physical Geodesy (APMG), University of Bonn in Germany, on 13th July 2010.
Shabanloui, Akbar
openaire   +2 more sources

Real-Time Tomographic Inversion of Truncated Ionospheric GNSS Radio Occultations

open access: yesRemote Sensing, 2023
This paper presents a new way of combining Abel inversion and the Chapman model with a linearly increasing scale height to retrieve ionospheric electron density vertical profiles from truncated-sounding radio-occultation data. A linear Vary–Chap model is
Germán Olivares-Pulido   +9 more
doaj   +5 more sources

A simplified approach for generating GNSS radio occultation refractivity climatologies [PDF]

open access: yesAtmospheric Measurement Techniques, 2013
The possibility of simplifying the retrieval scheme required to produce GNSS radio occultation refractivity climatologies is investigated. In a new, simplified retrieval approach, the main statistical analysis is performed in bending angle space and an ...
H. Gleisner, S. B. Healy
doaj   +3 more sources

Assimilation of GNSS radio occultation observations in GRAPES [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
This paper reviews the development of the global navigation satellite system (GNSS) radio occultation (RO) observations assimilation in the Global/Regional Assimilation and PrEdiction System (GRAPES) of China Meteorological Administration, including ...
Y. Liu, Y. Liu, J. Xue
doaj   +3 more sources

Tutorial on GNSS Polarimetric Radio Occultations (GNSS PRO)

open access: yes, 2021
Talk delivered in 1st Paz Polarimetric Radio Occultations User Workshop, 23 April ...
Cardellach, Estel   +4 more
openaire   +2 more sources

GNSS Signal Jamming as Observed From Radio Occultation

open access: yesIEEE 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   +3 more sources

Global tropopause height determination using GNSS radio occultation

open access: yesEgyptian Journal of Remote Sensing and Space Sciences, 2023
The tropopause layer is a crucial stratum of the earth's atmosphere that attracts more interest from climate and atmospheric researchers. The observables of the global navigation satellite system (GNSS) allow for continuous and long-term research of the ...
Mohamed Zhran, Ashraf Mousa
doaj   +2 more sources

GNSS Radio Occultation Data in the AWS Cloud

open access: yesEarth 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   +4 more
doaj   +2 more sources

Principles of variational assimilation of GNSS radio occultation data [PDF]

open access: yes, 2003
The standard processing of the Global Navigation Satellite System (GNSS) based refractometric data performed by means of a space-borne GPS-receiver was based on the approximate derivation of the local vertical profiles of the atmospheric refractivity by means of the Abel transform.
Gorbunov, M., Kornblueh, L.
openaire   +3 more sources

The High‐Latitude Workbox for the Ionosphere (HAWK‐I): A New Toolkit for Real‐Time Specification of the Arctic Ionosphere

open access: yesSpace Weather
The high‐latitude ionosphere exhibits rapid spatial and temporal variability during geomagnetically active periods, creating persistent challenges for accurate nowcasts.
Patrick Dandenault   +7 more
doaj   +2 more sources

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