Results 111 to 120 of about 896,848 (251)
Journal of Geophysical Research: Planets, 2018 Radio occultation (RO) is one of the most efficient techniques for studying fine vertical structures in planetary atmospheres. However, the geometrical optics (GO) method, which has been used for the analysis of RO data, suffers blurring by the finite ...
T. Imamura +12 more
semanticscholar +1 more source
Tomographic Imaging of Ionospheric Plasma Bubbles Based on GNSS and Radio Occultation Measurements
Remote Sensing, 2018 Total electron content measurements given by the global navigation satellite system (GNSS) have successfully presented results to capture the signatures of equatorial plasma bubbles.
F. Prol +3 more
semanticscholar +1 more source
Atmospheric Measurement Techniques, 2018 . While water vapor is the most important tropospheric greenhouse gas, it is also highly variable in both space and time, and water vapor concentrations range over 3 orders of magnitude in the troposphere. These properties challenge all observing systems
T. Rieckh +4 more
semanticscholar +1 more source
On the radio occultation method for studying planetary atmospheres [PDF]
, 1968 Robert A. Phinney, Donald L. Anderson
openalex +1 more source
, 2018 A new method for probing the spatial and temporal features of the topside ionosphere is presented. The Vary‐Chap model given by linear functions was used to discover and report features of the topside scale height and its gradient.
F. Prol +3 more
semanticscholar +1 more source
The tropopause height analysis in equatorial region through the GPS-RO
E3S Web of Conferences, 2019 This study was performed to analyze the variation level of tropopause height in vertical resolution using radio occultation (RO) data from GRACE database due to the high spatial resolution of radio occultation data.
Mohd Zali Rohaniza, Mandeep J S
doaj +1 more source
The Discovery of Quasars and its Aftermath [PDF]
arXiv, 2013 Although the extragalactic nature of quasars was discussed as early as 1960, it was rejected largely because of preconceived ideas about what appeared to be an unrealistically high radio and optical luminosity. Following the 1962 occultations of the strong radio source 3C 273 at Parkes, and the subsequent identification with an apparent stellar object,
arxiv
On the Use of Lunar Occultations for Investigating the Angular Structure of Radio Sources [PDF]
, 1962 PAG Scheuer
openalex +1 more source
Several outstanding issues concerning the ionosphere of Mars
Earth, Planets and SpaceSeveral outstanding issues concerning the ionosphere of Mars can be addressed with the support of radio occultation observations acquired near the solar zenith angle limit of 45 $$^{\circ }$$ ∘ .
Paul Withers +5 more
doaj +1 more source
GPS Radio Occultation: Results from CHAMP, GRACE and FORMOSAT-3/COSMIC
Terrestrial, Atmospheric and Oceanic Sciences, 2009 The Taiwan/US FORMOSAT-3/COSMIC (FORMOsa SATellite mission - 3/Constellation Observing System for Meteorology, Ionosphere and Climate) satellite nstellation was successfully launched on 14 April 2006. It is expected to leverage the use of the GPS (Global
Jens Wickert +16 more
doaj +1 more source