Results 31 to 40 of about 14,468 (304)

The Shape of Jupiter and Saturn Based on Atmospheric Dynamics, Radio Occultations and Gravity Measurements

open access: yesGeophysical 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
doaj   +1 more source

On the global relationship between polarimetric radio occultation differential phase shift and ice water content [PDF]

open access: yesAtmospheric Chemistry and Physics, 2023
The Radio Occultations and Heavy Precipitation (ROHP) experiment aboard the Spanish PAZ satellite was deployed in 2018 with the objective of demonstrating the ability of the polarimetric radio occultation measurement (PRO) concept in detecting rain ...
R. Padullés   +4 more
doaj   +1 more source

Operation of the Radio Occultation Mission in KOMPSAT-5 [PDF]

open access: yesJournal 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
doaj   +1 more source

Sensing the ionosphere with the Spire radio occultation constellation

open access: yesJournal of Space Weather and Space Climate, 2021
Radio occultation (RO) provides a cost-effective component of the overall sensor mix required to characterise the ionosphere over wide areas and in areas where it is not possible to deploy ground sensors. The paper describes the RO constellation that has
Angling Matthew J.   +9 more
doaj   +1 more source

Data intensive scientific analysis with grid computing [PDF]

open access: yes, 2011
At the end of September 2009, a new Italian GPS receiver for radio occultation was launched from the Satish Dhawan Space Center (Sriharikota, India) on the Indian Remote Sensing OCEANSAT-2 satellite.
E. Kursinski   +12 more
core   +1 more source

Sporadic E signatures revealed from multi-satellite radio occultation measurements [PDF]

open access: yesAdvances 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

Radio occultation techniques for probing the ionosphere

open access: yesAnnals of Geophysics, 2004
GPS radio occultation measurements establish the basis for a new remote sensing technique for vertical profile information on the electron density of the entire ionosphere from satellite orbit heights down to the bottomside. No other profiling technique such as vertical sounding or incoherent scatter, unifies vertical profiling through the entire ...
Jakowski, Norbert   +2 more
openaire   +4 more sources

GPS Radio Occultation Data Assimilation in the AREM Regional Numerical Weather Prediction Model for Flood Forecasts

open access: yesAdvances in Meteorology, 2018
Based on the Backward Four-Dimensional Variational Data Assimilation (Backward-4DVar) system with the Advanced Regional Eta-coordinate Model (AREM), which is capable of assimilating radio occultation data, a heavy rainfall case study is performed using ...
Wei Cheng   +3 more
doaj   +1 more source

An introduction to the FY3 GNOS instrument and mountain-top tests [PDF]

open access: yesAtmospheric 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
doaj   +1 more source

Preliminary Estimations of Mars Atmospheric and Ionospheric Profiles from Tianwen-1 Radio Occultation One-Way, Two-Way, and Three-Way Observations

open access: yesRemote 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
doaj   +1 more source

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