Results 11 to 20 of about 910 (213)

Stratospheric gravity waves in a post-limb sounder era: can GNSS-RO be used to extend the SABER QBO-driving record? [PDF]

open access: yesAtmospheric Measurement Techniques
The quasi-biennial oscillation (QBO) is a slowly repeating cycle of winds which dominates tropical lower-stratospheric dynamics and has been described as the “heartbeat of the stratosphere”. However, it is challenging to represent in weather and climate
M. Almowafy   +3 more
doaj   +2 more sources

Ionospheric S4 Scintillations from GNSS Radio Occultation (RO) at Slant Path [PDF]

open access: yesRemote Sensing, 2020
Ionospheric scintillation can significantly degrade the performance and the usability of space-based communication and navigation signals. Characterization and prediction of ionospheric scintillation can be made from the Global Navigation Satellite ...
Dong L. Wu
core   +3 more sources

Rádio Ocultação GNSS: Revisão Teórica, Missões e Produtos

open access: yesRevista Brasileira de Cartografia, 2022
A rádio ocultação (RO) começou a ser utilizada para a sondagem da atmosfera de outros planetas a partir da década de 1960. Com o desenvolvimento do Global Navigation Satellite System (GNSS) e de missões com satélites de baixa órbita (Low Earth Orbit ...
Gabriel Oliveira Jerez   +4 more
doaj   +2 more sources

Using the Commercial GNSS RO Spire Data in the Neutral Atmosphere for Climate and Weather Prediction Studies

open access: yesRemote Sensing, 2023
Recently, the NOAA has included GNSS (Global Navigation Satellite System) Radio Occultation (RO) data as one of the crucial long-term observables for weather and climate applications.
Shu-peng Ho   +5 more
doaj   +2 more sources

GNSS-RO Refractivity Bias Correction Under Ducting Layer Using Surface-Reflection Signal [PDF]

open access: yesRemote Sensing, 2020
Due to its high vertical resolution and cloud-penetrating capability, GNSS-Radio Occultation (RO) remote sensing technique has been utilized to observe the vertical structure of the Planetary Boundary Layer (PBL) in recent years.
Chi Ao   +2 more
core   +3 more sources

Assessment of Commercial GNSS Radio Occultation Performance from PlanetiQ Mission

open access: yesRemote Sensing
Global Navigation Satellite System (GNSS) radio occultation (RO) provides valuable 3-D atmospheric profiles with all-weather, all the time and high accuracy. However, GNSS RO mission data are still limited for global coverage.
Mohamed Zhran   +4 more
doaj   +2 more sources

Advancing GNSS-RO Detection of Ionospheric Irregularities Using Refined Back Propagation and GOLD Data

open access: yesProceedings of the 7th URSI Asia-Pacific RadioScience Conference – AP-RASC 2025
This paper investigates on the detection and localization of ionospheric irregularities using GNSS Radio Occultation (GNSS-RO). We propose a new segmented phase screen (PS) approach to improve vertical and horizontal localization and remove the presence ...
Pettersson, Mats   +5 more
core   +3 more sources

Improvement of reflection detection success rate of GNSS RO measurements using artificial neural network

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2018
Global Navigation Satellite System (GNSS) radio occultation (RO) has been widely used in the prediction of weather, climate, and space weather, particularly in the area of tropospheric analyses.
Andong Hu (2067883)   +7 more
core   +2 more sources

Seeking Optimal GNSS Radio Occultation Constellations Using Evolutionary Algorithms

open access: yesRemote Sensing, 2019
Given the great achievements of the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) mission in providing huge amount of GPS radio occultation (RO) data for weather forecasting, climate research, and ionosphere monitoring,
Xiaohua Xu   +4 more
doaj   +2 more sources

Efficient collocation of global navigation satellite system radio occultation soundings with passive nadir microwave soundings [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
Radio occultation (RO) using the global navigation satellite system (GNSS) can be used to infer atmospheric profiles of microwave refractivity in the Earth's atmosphere.
A. Meredith   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy