Results 61 to 70 of about 1,121 (191)

Implementation of ROSA radio occultation data handling into EUMETSAT and GRAS SAF processing [PDF]

, 2012
Topic of the GRAS-SAF Visiting Scientist activity 16 has been the implementation of ROSA radio occultation data handling into EUMETSAT and GRAS SAF processing tools. ROSA data referred to observations taken on-board OCEANSAT-2 mission.
Notarpietro, Riccardo
core  

HIWIND Observation of Daytime Thermospheric Winds Over New Zealand and Comparison With Model Simulation

Journal of Geophysical Research: Space Physics, Volume 131, Issue 6, June 2026.
Abstract A balloon borne Fabry Perot interferometer called High altitude Interferometer WIND observation (HIWIND) flew from Wanaka, New Zealand (44.69S, 169.14E) in April 2025 to observe mid‐latitude thermospheric winds in the southern hemisphere for the first time.
Qian Wu, Haonan Wu, Wenbin Wang
wiley   +1 more source

Potential Impacts of Radio Occultation Data Assimilation on Forecast Skill of Tropical Cyclone Formation in the Western North Pacific

Geophysical Research Letters, 2023
This study assesses the potential influence of global navigation satellite system (GNSS) radio occultation (RO) data assimilation on the forecast skill of tropical cyclone formation over the western North Pacific in September–October 2019 through a ...
Hsu‐Feng Teng, Ying‐Hwa Kuo, James M. Done   +2 more
doaj   +1 more source

Balloon-borne software defined receiver for GNSS radio occultation measurements. ROMULUS experiment

, 2022
The aim of the experiment "Radio Occultation Miniaturized Unit for Leo and Upper Stratosphere" (ROMULUS) is to test the performance of a low-cost balloon-borne Software Defined Receiver (SDR) for GNSS Radio Occultation (GNSS-RO) soundings.
Lorenzo Rossi, Flavio Pasquale, Alessandro Rossi, Giuseppe Morichetti, Gabriele Agresti, Elisa Depaolis, Ariele Zurria, Fabio Santoni, Elena Valant, Fabrizio Piergentili, Clara Di Nunzio, Gabriele Boccacci, Paolo Marzioli, Damiano Porpora, Linda Misercola   +14 more
core   +1 more source

A Unified Vector Electromagnetic Framework for Ionospheric Scintillation and Polarization Effects in GNSS

Radio Science, Volume 61, Issue 6, June 2026.
Abstract The ionosphere imposes coupled amplitude, phase, and polarization distortions on trans‐ionospheric Global Navigation Satellite System (GNSS) signals, reflecting the structure and dynamics of electron‐density irregularities. Classical weak‐scatter theory provides a mature framework for interpreting amplitude and phase scintillation, but these ...
T. Durgonics, S. S. Beeck
wiley   +1 more source

Analysis of Satellite Radio Occultation Architecture and its Stakeholders

, 2021
Global Navigation Satellite System Radio Occultation (GNSS-RO) is a technique that relies on the change of a signal transmitted from a Global Navigation Satellite System (GNSS) as it passes through the planet’s atmosphere.
I. Josue Tapia-Tamayo, Paul T. Grogan
core   +1 more source

Calibration and Fusion of GOLD‐Inferred TEC Data With Ground‐Based TEC

Space Weather, Volume 24, Issue 6, June 2026.
Abstract Ground‐based Global Navigation Satellite System (GNSS) receivers provide primary total electron content (TEC) measurements used to monitor ionospheric variability, yet their sparse distribution over oceanic and equatorial regions limits global coverage and model accuracy.
Maria Smirnova, Shasha Zou, Grace Kwon, Hang Liu, Yang Chen   +4 more
wiley   +1 more source

Electron Density Retrieval From Truncated Radio Occultation GNSS Data [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractThis 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 System Second Generation.
Haixia Lyu, Manuel Hernández‐Pajares, Enric Monte‐Moreno, Estel Cardellach   +3 more
openaire   +3 more sources

A First Attempt at Reconstructing FengYun‐4B Stratified Precipitable Water Using GNSS

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Layer Precipitable Water (LPW) characterizes the vertical structure of atmospheric moisture and is essential for accurate weather forecasts. China's FY‐4B satellite delivers near‐real‐time LPW products, but is constrained by large uncertainties.
Yuhao Wu, Bao Zhang, Yibin Yao, Hongming Li, Quanyu Chen   +4 more
wiley   +1 more source

The Accuracy Assessment and Scientific Research Progress of Ionospheric Radio Occultation Products Observed by Fengyun-3 GNOS

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Global navigation satellite system (GNSS) radio occultation (RO) is a novel detection technique that can provide global ionospheric products with high vertical resolution, high precision, and low cost.
Weihua Bai, Xiaoxu Liu, Guangyuan Tan, Yueqiang Sun, Qifei Du, Xiangguang Meng, Congliang Liu, Junming Xia, Cong Yin, Feixiong Huang, Peng Hu   +10 more
doaj   +1 more source