Results 21 to 30 of about 4,390 (264)

The Radio Occultation Processing Package, ROPP [PDF]

open access: yesAtmospheric Measurement Techniques, 2015
This paper describes the Radio Occultation Processing Package, ROPP, a product of the EUMETSAT Radio Occultation Meteorology Satellite Application Facility (ROM SAF) developed by a large number of scientists over many years.
I. D. Culverwell   +4 more
doaj   +1 more source

Sporadic E signatures revealed from multi-satellite radio occultation measurements [PDF]

open access: yesAdvances in Radio Science, 2010
Radio occultation measurements performed by the satellites CHAMP, GRACE and FORMOSAT-3/COSMIC provide a huge data set for atmospheric and ionospheric investigations on a global scale.
C. Arras   +4 more
doaj   +1 more source

Preliminary Estimations of Mars Atmospheric and Ionospheric Profiles from Tianwen-1 Radio Occultation One-Way, Two-Way, and Three-Way Observations

open access: yesRemote Sensing, 2023
The radio occultation method, one of the methods used to provide planetary atmospheric profiles with high vertical resolution, was applied to China’s first Mars mission, Tianwen-1.
Min Liu   +8 more
doaj   +1 more source

An introduction to the FY3 GNOS instrument and mountain-top tests [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
The FY3 (Feng-Yun-3) GNOS (GNSS Occultation Sounder) mission is a GNSS (Global Navigation Satellite System) radio occultation mission of China for remote sensing of Earth's neutral atmosphere and the ionosphere.
W. H. Bai   +9 more
doaj   +1 more source

GPS Radio Occultation Data Assimilation in the AREM Regional Numerical Weather Prediction Model for Flood Forecasts

open access: yesAdvances in Meteorology, 2018
Based on the Backward Four-Dimensional Variational Data Assimilation (Backward-4DVar) system with the Advanced Regional Eta-coordinate Model (AREM), which is capable of assimilating radio occultation data, a heavy rainfall case study is performed using ...
Wei Cheng   +3 more
doaj   +1 more source

Estimation and evaluation of COSMIC radio occultation excess phase using undifferenced measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
In the GPS radio occultation technique, the atmospheric excess phase (AEP) can be used to derive the refractivity, which is an important quantity in numerical weather prediction.
P. Xia, S. Ye, K. Jiang, D. Chen
doaj   +1 more source

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   +1 more source

Generation of a bending angle radio occultation climatology (BAROCLIM) and its use in radio occultation retrievals [PDF]

open access: yesAtmospheric Measurement Techniques, 2015
In this paper, we introduce a bending angle radio occultation climatology (BAROCLIM) based on Formosat-3/COSMIC (F3C) data. This climatology represents the monthly-mean atmospheric state from 2006 to 2012.
B. Scherllin-Pirscher   +3 more
doaj   +1 more source

Progress of radio occultation exploration of Mars

open access: yes地球与行星物理论评
Mars is the sister star of Earth. Studying Mars is important to understand its evolution as well as that of Earth and even the solar system. Since the launch of American Mariner 4 in 1964 and the first successful use of radio occultation technology to ...
Luo Xiao   +5 more
doaj   +1 more source

Fluctuations of radio occultation signals in sounding the Earth's atmosphere [PDF]

open access: yesAtmospheric Measurement Techniques, 2018
We discuss the relationships that link the observed fluctuation spectra of the amplitude and phase of signals used for the radio occultation sounding of the Earth's atmosphere, with the spectra of atmospheric inhomogeneities.
V. Kan   +3 more
doaj   +1 more source

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