Results 31 to 40 of about 825,597 (228)

Accuracy and Stability of Radio Occultation Dry Temperature Profiles from Fengyun Satellites

应用气象学报, 2023
The earth's climate has undergone significant changes due to the combined effects of natural changes and human activities. To understand the impact of climate change, the most fundamental work is to establish high-quality data required for climate ...
Liao Mi, Zhang Peng, Liu Jian, Liu Congliang, Bai Weihua, Xu Na, Chen Lin   +6 more
doaj   +1 more source

GNSS Radio Occultation in Advanced Numerical Weather Prediction Models

GEOmedia, 2019
GPS-Radio Occultation (GPS-RO), and generally, Global Navigation Satellite System Radio Occultation (GNSS-RO), is a technique that measures the refractivity of the Earth's atmosphere as a Low Earth Orbit (LEO) satellite listens to the radio signal of a ...
Guillermo Bosch
doaj   +3 more sources

Retrieval of the Stratospheric Density by the Star Occultation

Aerospace, 2023
The navigation by the stellar refraction is important for a LEO (Low-Earth-Orbit) satellite, especially in a GNSS (Global Navigation Satellite System)-denied environment, since it is totally autonomous.
Kedong Wang, Zhennan Li, Shaoxiong Zhang
doaj   +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, Y. Q. Sun, Q. F. Du, G. L. Yang, Z. D. Yang, P. Zhang, Y. M. Bi, X. Y. Wang, C. Cheng, Y. Han   +9 more
doaj   +1 more source

Analysis of the differences between GPS radio occultation and radiosonde atmosphere profiles in Egypt

Egyptian Journal of Remote Sensing and Space Sciences, 2022
Difference values between Global Positioning System (GPS)-Radio Occultation (RO) and radiosonde (RS) profiles are analyzed to assess the integration applicability between them in Egypt.
Ibrahim Fouad Ahmed, Mohamed Amin Abd El-Fatah, Ashraf El-Kutb Mousa, Gamal El-Fiky   +3 more
doaj   +1 more source

Accuracy assessment of the quiet-time ionospheric F2 peak parameters as derived from COSMIC-2 multi-GNSS radio occultation measurements

Journal of Space Weather and Space Climate, 2021
The Constellation Observing System for Meteorology, Ionosphere, and Climate 2 (COSMIC-2) mission was launched into a low-inclination (24°) orbit on June 25, 2019.
I. Cherniak, I. Zakharenkova, J. Braun, Qian Wu, N. Pedatella, W. Schreiner, J. Weiss, D. Hunt   +7 more
semanticscholar   +1 more source

A comparison of FORMOSAT-3/COSMIC radio occultation and ionosonde measurements in sporadic E detection over mid- and low-latitude regions

Frontiers in Astronomy and Space Sciences, 2023
The investigation of sporadic E or Es layers typically relies on ground-based or satellite data. This study compares the Es layers recorded in ionograms with those detected using GNSS L1 signal-to-noise ratio data from FORMOSAT-3/COSMIC radio occultation
S. Sobhkhiz-Miandehi, S. Sobhkhiz-Miandehi, Y. Yamazaki, C. Arras, C. Arras, D. Themens, D. Themens   +6 more
doaj   +1 more source

Polarimetric GNSS Radio-Occultations for heavy rain detection [PDF]

2010 IEEE International Geoscience and Remote Sensing Symposium, 2010
A Global Navigation Satellite System (GNSS) Radio-Occultation (RO) experiment is being accommodated in the Spanish Low Earth Orbiter (LEO) for Earth Observation PAZ. The RO-payload will provide globally distributed vertical thermodynamic profiles of the Atmosphere in Near Real-Time (NRT) suitable to be assimilated into Weather Numerical Prediction ...
Estel Cardellach, Antonio Rius, Fernando Cerezo, Miguel Angel Garcia-Primo, Manuel de la Torre Juárez, Lidia Cucurull, Dave Ector   +6 more
openaire   +2 more sources

gnss-ro/aws-opendata: GNSS-RO AWS Open Data v1.0.0

, 2023
GNSS Radio Occultation Data in the AWS ...
gnss-ro, amymcvey, ssleroy
core   +1 more source

Automatic GNSS Ionospheric Scintillation Detection with Radio Occultation Data Using Machine Learning Algorithm

Applied Sciences, 2023
Ionospheric scintillation often occurs in the polar and equator regions, and it can affect the signals of the Global Navigation Satellite System (GNSS).
Guangwang Ji, Ruimin Jin, Weimin Zhen, Huiyun Yang   +3 more
doaj   +1 more source