Results 91 to 100 of about 896,848 (251)
Analysis of reflections in GNSS radio occultation measurements using the phase matching amplitude [PDF]
Atmospheric Measurement Techniques, 2018 It is well-known that in the presence of super-refractive layers in the lower-tropospheric inversion of GNSS radio occultation (RO) measurements using the Abel transform yields biased refractivity profiles. As such it is problematic to reconstruct the
T. Sievert +3 more
doaj +1 more source
Occultation of the radio source 2019+098 (3C411) by comet 1983e (Sugano-Saigusa-Fujikawa) [PDF]
arXiv, 2009 [This cometary occultation observation from June 1983 remained to be formally reported due to other preoccupations of the authors. It was presented in seminars to colleagues at Ooty, Bangalore and elsewhere. We now write it up as we have been asked about it by various colleagues at various times, and feel we owe it to them to put it firmly on record ...
arxiv
Atmospheric Measurement Techniques, 2018 . The Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) is one of the new-generation payloads on board the Chinese FengYun 3 (FY-3) series of operational meteorological satellites for sounding the Earth's neutral atmosphere and ...
Yueqiang Sun +14 more
semanticscholar +1 more source
Principle of Locality and Analysis of Radio Occultation Data
IEEE Transactions on Geoscience and Remote Sensing, 2013 A fundamental principle of local interaction of radio waves with a refractive spherical medium is formulated and illustrated using the radio occultation (RO) method of remote sensing of the atmosphere and the ionosphere of the Earth and the planets. In accordance with this principle, the main contribution to variations of the amplitude and the phase of
A.G. Pavelyev +7 more
openaire +5 more sources
Forthcoming occultations of astrometric radio sources by planets [PDF]
In: D. Behrend, K. D. Baver (Eds.), IVS 2010 General Meeting
Proc., NASA/CP-2010-215864, 2010, 320--324, 2011 Astrometric observations of the radio source occultations by solar system bodies may be of large interest for testing gravity theories, dynamical astronomy, and planetary physics. In this paper, we present an updated list of the occultations of astrometric radio sources by planets expected in the nearest years.
arxiv
Advances in Meteorology, 2019 Carrying global positioning system (GPS) radio occultation (RO) receiver, Chinese meteorological satellite Fengyun-3C (FY-3C) was launched on September 23, 2013, which provides new observation data for observations and studies of weather and climate ...
Shuanggen Jin, Chao Gao, Junhai Li
semanticscholar +1 more source
Journal of Geophysical Research: Planets, 2018 Temperature profiles of the Venus atmosphere obtained by the Akatsuki radio occultation measurements showed a prominent local time dependence above 65‐km altitude at low latitudes equatorward of 35°.
H. Ando +18 more
semanticscholar +1 more source
, 2018 In this study we calibrate and validate in situ ionospheric electron density (Ne) and temperature (Te) measured with Langmuir probes (LPs) on the three Swarm satellites orbiting the Earth in circular, nearly polar orbits at ~500 km altitude.
L. Lomidze +4 more
semanticscholar +1 more source
Advances in Radio Science, 2019 . We analyze tidal (diurnal, semidiurnal, terdiurnal, quarterdiurnal) phases and related wind shear in the mesosphere/lower thermosphere as observed by meteor radar over Collm (51.3∘ N, 13.0∘ E).
C. Jacobi, C. Arras
semanticscholar +1 more source
Atmospheric Measurement Techniques, 2019 . This paper presents the calibration and validation studies for the Radio Occultation and Heavy Precipitation experiment aboard the PAZ satellite. These studies, necessary to assess and characterize the noise level and robustness of the differential ...
R. Padullés +6 more
semanticscholar +1 more source