Results 31 to 40 of about 906,411 (211)
Remote sensing of tropospheric turbulence using GPS radio occultation [PDF]
, 2016 Radio occultation (RO) measurements are sensitive to the small-scale irregularities in the atmosphere. In this study, we present a new technique to estimate tropospheric turbulence strength (namely, scintillation index) by analyzing RO amplitude ...
Ao, Chi, Shume, Esayas
core +2 more sources
Journal of Atmospheric and Oceanic Technology, 2019 Global positioning system (GPS) radio occultation (RO) is capable of retrieving vertical profiles of atmospheric parameters with high resolution (
Z. Zeng +3 more
semanticscholar +1 more source
Approaches for Retrieving Sulfur Species Abundances from Dual X/Ka Band Radio Occultations of Venus with EnVision and VERITAS [PDF]
arXiv, 2023 The EnVision and VERITAS missions to Venus will fly with X and Ka band telecommunications channels which can be used to conduct radio occultation studies of Venus' atmosphere. While link attenuation measurements during prior S and X band occultation experiments have been used to determine vertical profiles of H$_2$SO$_4$ vapor abundance, the addition ...
arxiv
GPS Solutions, 2018 Ionospheric sporadic-E (Es) activity and global morphology were studied using the 50 Hz signal-to-noise ratio amplitude and excess phase measurements from the FormoSat-3/Constellation Observing System for Meteorology, Ionosphere and Climate (FS3/COSMIC ...
L. Tsai +5 more
semanticscholar +1 more source
Radio interferometric observation of an asteroid occultation [PDF]
, 2018 The occultation of the radio galaxy 0141+268 by the asteroid (372) Palma on 2017 May 15 was observed using six antennas of the Very Long Baseline Array (VLBA). The shadow of Palma crossed the VLBA station at Brewster, Washington. Owing to the wavelength used, and the size and the distance of the asteroid, a diffraction pattern in the Fraunhofer regime ...
arxiv +1 more source
Interior Models of Saturn: Including the Uncertainties in Shape and Rotation [PDF]
, 2013 The accurate determination of Saturn's gravitational coefficients by Cassini could provide tighter constrains on Saturn's internal structure. Also, occultation measurements provide important information on the planetary shape which is often not ...
Guillot, Tristan, Helled, Ravit
core +1 more source
Evaluation of the 15-year ROM SAF monthly mean GPS radio occultation climate data record
Atmospheric Measurement Techniques, 2019 . We here present results from an evaluation of the Radio Occultation Meteorology Satellite Application Facility (ROM SAF) gridded monthly mean climate data record (CDR v1.0), based on Global Positioning System (GPS) radio occultation (RO) data from the ...
H. Gleisner +3 more
semanticscholar +1 more source
A procedure to analyze nonlinear density waves in Saturn's rings using several occultation profiles [PDF]
Icarus, 199, 154-173 (2009), 2010 Cassini radio science experiments have provided multiple occultation optical depth profiles of Saturn's rings that can be used in combination to analyze density waves. This paper establishes an accurate procedure of inversion of the wave profiles to reconstruct the wave kinematic parameters as a function of semi-major axis, in the nonlinear regime ...
arxiv +1 more source
Electron density retrieval from truncated Radio Occultation GNSS data [PDF]
, 2019 This paper summarizes the definition and validation of two complementary new strategies, to invert incomplete Global Navigation Satellite System Radio-Occultation (RO) ionospheric measurements, such as the ones to be provided by the future EUMETSAT Polar
Cardellach Galí, Estel +3 more
core +2 more sources
J. Sensors, 2018 Precipitable water vapor (PWV) content detection is vital to heavy rain prediction; up to now, lots of different measuring methods and devices are developed to observe PWV.
Qin Zhang +3 more
semanticscholar +1 more source