Results 41 to 50 of about 2,499 (207)

Sensing Heavy Precipitation With GNSS Polarimetric Radio Occultations [PDF]

open access: yesGeophysical Research Letters, 2019
AbstractThis study presents, for the first time ever, occulting signals of the Global Navigation Satellite Systems (GNSSs) acquired at two polarizations from a Low Earth Orbiter, and it shows that they sense heavy precipitation. The data sets are obtained from early stages of the Radio Occultation and Heavy Precipitation experiment aboard the PAZ ...
E. Cardellach   +21 more
openaire   +1 more source

Commercial GNSS Radio Occultation on Aerial Platforms With Off-The-Shelf Receivers

open access: yesNavigation, 2022
In recent decades, GNSS radio occultation (RO) soundings have proven to be an invaluable input to global weather forecasting. The success of government programs such as COSMIC is now complemented by commercial low-cost cubesats.
Bryan C. Chan   +10 more
doaj   +1 more source

Errors in GNSS radio occultation data: relevance of the measurement geometry and obliquity of profiles [PDF]

open access: yes, 2011
Atmospheric profiles retrieved from GNSS (Global Navigation Satellite System) radio occultation (RO) measurements are increasingly used to validate other measurement data.
G. Kirchengast   +3 more
core   +1 more source

Orographic and convective gravity waves above the Alps and Andes mountains during GPS radio occultation events – a case study [PDF]

open access: yes, 2017
The significant distortions introduced in the measured atmospheric gravity wavelengths by soundings other than in vertical and horizontal directions, are discussed as a function of elevation angle of the sounding path and the gravity waves aspect ratio ...
Alexander, Pedro Manfredo   +5 more
core   +1 more source

Determination of Tropical Belt Widening Using Multiple GNSS Radio Occultation Measurements [PDF]

open access: yesAnnales Geophysicae, 2021
Abstract. In the last decades, Global navigation satellite systems (GNSS) have provided an exceptional opportunity to retrieve atmospheric parameters globally through GNSS radio occultation (GNSS-RO). In this paper, data of 12 GNSS-RO missions from June 2001 to November 2020 with high resolution were used to investigate the possible widening of the ...
M. Darrag   +6 more
openaire   +3 more sources

FY3E GNOS II GNSS Reflectometry: Mission Review and First Results

open access: yesRemote Sensing, 2022
FengYun-3E (FY3E), launched on 5 July 2021, is one of China’s polar-orbiting meteorological satellite series. The GNOS II onboard FY3E is an operational GNSS remote sensor that for the first time combines GNSS radio occultation (GNSS RO) and GNSS ...
Guanglin Yang   +18 more
doaj   +1 more source

Beacon Satellite Symposium: Session 5B - June 30th 2016: Radio Occultation Techniques and Measurements [PDF]

open access: yes, 2016
During the Beacon Satellite Symposium, held in Trieste, Italy, between June 26 and July 1 2016, the JRC chaired the session 5B: Radio Occultation Techniques and Measurements. The corresponding abstract of the session is provided as follows: Since the mid-
ARAGON ANGEL MARIA ANGELES
core   +1 more source

“Cookie”: A Satellite Concept for GNSS Remote Sensing Constellations

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016
This paper presents a concept, “Cookie,” for a satellite particularly suited for dense spatial sampling by future Global Navigation Satellite Systems (GNSS) remote sensing constellations.
Manuel Martin-Neira   +3 more
doaj   +1 more source

Refractivity and temperature climate records from multiple radio occultation satellites consistent within 0.05% [PDF]

open access: yes, 2011
Data consistency is an important prerequisite to build radio occultation (RO) climatologies based on a combined record of data from different satellites.
A. K. Steiner   +4 more
core   +1 more source

Electron density extrapolation above F2 peak by the linear Vary-Chap model supporting new Global Navigation Satellite Systems-LEO occultation missions [PDF]

open access: yes, 2017
The new radio-occultation (RO) instrument on board the future EUMETSAT Polar System-Second Generation (EPS-SG) satellites, flying at a height of 820 km, is primarily focusing on neutral atmospheric profiling.
Alizadeh   +30 more
core   +2 more sources

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