Results 51 to 60 of about 911,153 (371)
Operation of the Radio Occultation Mission in KOMPSAT-5 [PDF]
Journal of Astronomy and Space Sciences, 2010 Korea multi-purpose satellite-5 (KOMPSAT-5) is a low earth orbit (LEO) satellite scheduled to be launched in 2010. To satisfy the precision orbit determination (POD) requirement for a high resolution synthetic aperture radar image of KOMPSAT-5, KOMPSAT-
Mansoo Choi +3 more
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GPS Radio Occultation with CHAMP [PDF]
, 2003 The GPS (Global Positioning System) radio occultation experiment onboard the German CHAMP (CHAllenging Minisatellite Payload) satellite was activated in February 2001. By the end of 2001 about 36,500 occultations were recorded. We review the occultation data processing at the GFZ and discuss selected first results.
Wickert, J. +6 more
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Geophysical Research Letters, 2023 The shape of the two gas giants, Jupiter and Saturn, is determined primarily by their rotation rate, and interior density distribution. It is also affected by their zonal winds, causing an anomaly of O(10 km) at low latitudes.
E. Galanti, Y. Kaspi, T. Guillot
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Radio Occultation Exploration of Mars [PDF]
Symposium - International Astronomical Union, 1974 The radio occultation technique, consisting of the observation of changes in the phase, frequency, and amplitude of a radio signal from a spacecraft as it passes through the atmosphere of a planet before and after occultation, was first applied to measure the atmosphere of Mars with the Mariner IV spacecraft in 1965. The interpretation of these changes
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Annals 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
Remote 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
Sporadic E signatures revealed from multi-satellite radio occultation measurements [PDF]
Advances 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
Remote 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
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Geophysical Research Letters, 2021 The wind shear theory is widely accepted as an explanation for the formation of a sporadic E (Es) layer, but the direct comparison of Es with the local wind shear has been limited due to the lack of neutral wind measurements. This study examines the role
Y. Yamazaki +9 more
semanticscholar +1 more source
An introduction to the FY3 GNOS instrument and mountain-top tests [PDF]
Atmospheric 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
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