Improved models for estimating sporadic-E intensity from GNSS radio occultation measurements

DJ Emmons, DL Wu, N Swarnalingam, AF Ali… - Frontiers in Astronomy …, 2023 - frontiersin.org
Several models for estimating sporadic-E intensity from Global Navigation Satellite System
(GNSS) radio occultation (RO) observation have previously been developed using a single …

Detection and classification of sporadic E using convolutional neural networks

JA Ellis, DJ Emmons, MB Cohen - Space Weather, 2024 - Wiley Online Library
In this work, convolutional neural networks (CNN) are developed to detect and characterize
sporadic E (Es), demonstrating an improvement over current methods. This includes a …

Ionospheric irregularity reconstruction using multisource data fusion via deep learning

P Tian, B Yu, H Ye, X Xue, J Wu… - … Chemistry and Physics, 2023 - acp.copernicus.org
Ionospheric sporadic E layers (Es) are intense plasma irregularities between 80 and 130 km
in altitude and are generally unpredictable. Reconstructing the morphology of sporadic E …

Characteristics of sporadic E layer occurrence in a global chemistry‐climate model: A comparison with COSMIC‐derived data

T Aylett, W Feng, DR Marsh… - Journal of …, 2025 - Wiley Online Library
This study presents an analysis of sporadic‐E (Es) structures within WACCM‐X (the Whole
Atmosphere Community Climate Model with thermosphere and ionosphere eXtension) …

Dynamics of Mid‐Latitude Sporadic‐E and Its Impact on HF Propagation in the North American Sector

BSR Kunduri, PJ Erickson, JBH Baker… - Journal of …, 2023 - Wiley Online Library
Sporadic‐E (Es) are thin layers of enhanced ionization observed in the E‐region, typically
between 95 and 120 km altitude. Es plays an important role in controlling the dynamics of …

Sporadic E critical frequency detection using three EIA region ionosonde stations over Southeast Asia

N Wichaipanich, M Nishioka, LMM Myint… - Advances in Space …, 2024 - Elsevier
This paper presents the occurrence of the sporadic E layer critical frequency (foEs)
measured from three ionosonde stations in the Southeast Asia equatorial ionization …

Sporadic-E studies over Southern Hemisphere geomagnetic mid-latitudes

AJ Foppiano, MA Bravo, LCA Resende… - Journal of Atmospheric …, 2024 - Elsevier
Sporadic-E (Es) are characterized by denser layers whose formation could be related to
wave activity in the lower thermosphere, such as planetary waves, tides, and gravity waves …

Characterizing global equatorial sporadic-E layers through COSMIC GNSS radio occultation measurements

A Seif, SK Panda - Astrophysics and Space Science, 2024 - Springer
Abstract The Global Navigation Satellite System Radio Occultation (GNSS-RO) technique
has proven to be a powerful tool for studying E-region irregularities, ie, Sporadic E (Es) …

[HTML][HTML] Concept of Sporadic E Monitoring Using Space-Based Low Power Multiple Beacon-Systems

J Vanhamel, M Berwaerts, S Speretta, S Uludag - Atmosphere, 2024 - mdpi.com
Current monitoring systems to detect sporadic E use ground-based setups, ionosondes, and
the network of GNSS satellites in order to assess the phenomenon of sporadic E. This paper …

The initial assessment of ionospheric radio occultation data of MSS‐1 satellite and its applications in scintillation exploration

MJ Wu, HY Yue, P Guo, X Ma, HG Li… - Earth and Space …, 2024 - Wiley Online Library
Abstract The Macau Science Satellites (MSS‐1) mission, consisting of twin low earth orbit
satellites (Satellite A and B), is the first low‐inclination and high‐precision geomagnetic …