Results 11 to 20 of about 906,411 (211)

Thermal structure of the Venusian atmosphere from the sub-cloud region to the mesosphere as observed by radio occultation [PDF]

open access: yesSci Rep, 2020
We present distributions of the zonal-mean temperature and static stability in the Venusian atmosphere obtained from Venus Express and Akatsuki radio occultation profiles penetrating down to an altitude of 40 km.
H. Ando   +11 more
semanticscholar   +2 more sources

Validation of martian meteorological data assimilation for MGS/TES using radio occultation measurements [PDF]

open access: green, 2006
We describe an assimilation of thermal profiles below about 40 km altitude and total dust opacities into a general circulation model (GCM) of the martian atmosphere.
Hinson, D.P.   +3 more
core   +3 more sources

Supervised Detection of Ionospheric Scintillation in Low-Latitude Radio Occultation Measurements

open access: yesRemote Sensing, 2021
Global Navigation Satellite System (GNSS) Radio Occultation (RO) has provided high-quality atmospheric data assimilated in Numerical Weather Prediction (NWP) models and climatology studies for more than 20 years.
Vinícius Ludwig-Barbosa   +5 more
semanticscholar   +1 more source

COSMIC‐2 Radio Occultation Constellation: First Results

open access: yesGeophysical Research Letters, 2020
Initial data from the Formosa Satellite‐7/Constellation Observing System for Meteorology Ionosphere and Climate (FORMOSAT‐7/COSMIC‐2, hereafter C2), a recently launched equatorial constellation of six satellites carrying advanced radio occultation ...
W. Schreiner   +14 more
semanticscholar   +1 more source

The COSMIC/FORMOSAT-3 Radio Occultation Mission after 12 Years: Accomplishments, Remaining Challenges, and Potential Impacts of COSMIC-2

open access: yesBulletin of The American Meteorological Society - (BAMS), 2020
Launched in 2006, the Formosa Satellite Mission 3–Constellation Observing System for Meteorology, Ionosphere and Climate (FORMOSAT-3/COSMIC) was the first constellation of microsatellites carrying global positioning system (GPS) radio occultation (RO ...
S. Ho   +13 more
semanticscholar   +1 more source

A Technique for the Analysis of Radio Occultation Data to Retrieve Atmospheric Properties and Associated Uncertainties

open access: yesRadio Science, 2021
Among the techniques for atmospheric sounding, radio occultation enables an in depth investigation of vertical profiles from the ionosphere to the troposphere by measuring the radio frequency signal associated to the propagation medium.
Flavio Petricca, G. Cascioli, A. Genova
semanticscholar   +1 more source

Analysis of NASA's DSN Venus Express radio occultation data for year 2014 [PDF]

open access: yesVolume 71, Issue 1, 2023, Pages 1198-1215, 2021
The Venus Express Radio Science Experiment (VeRa) was part of the scientific payload of the Venus Express (VEX) spacecraft and was targeted at the investigation of Venus' atmosphere, surface, and gravity field as well as the interplanetary medium. This paper describes the methods and the required calibrations applied to VEX-VeRa raw radio occultation ...
arxiv   +1 more source

Quantifying the Tropical Upper Tropospheric Warming Amplification Using Radio Occultation Measurements

open access: yesEarth and Space Science, 2021
In the upper troposphere (UT), Global Navigation Satellite System (GNSS) Radio Occultations (ROs) provide accurate air temperatures (
P. Vergados   +3 more
semanticscholar   +1 more source

Occurrence climatology of equatorial plasma bubbles derived using FormoSat-3 ∕ COSMIC GPS radio occultation data

open access: yesAnnals of Geophysics, 2020
. The Global Positioning System – Radio Occultation (GPS-RO) observations from FormoSat-3 ∕ COSMIC are used to comprehend the global distribution of equatorial plasma bubbles which are characterized by depletion regions of plasma in the F region of the ...
Ankur Kepkar   +5 more
semanticscholar   +1 more source

Global 3D Features of Error Variances of GPS Radio Occultation and Radiosonde Observations

open access: yesRemote Sensing, 2020
Global Positioning System (GPS) radio occultation (RO) and radiosonde (RS) observations are two major types of observations assimilated in numerical weather prediction (NWP) systems.
Xu Xu, X. Zou
semanticscholar   +1 more source

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