Results 11 to 20 of about 5,388 (217)

Assessment of Global Ionospheric Maps Performance by Means of Ionosonde Data

Remote Sensing, 2020
This work presents a new method for assessing global ionospheric maps (GIM) using ionosonde data. The method is based on the critical frequency at the F2 layer directly measured by ionosondes to validate VTEC (vertical total electron content) values from
Gabriel O. Jerez, Manuel Hernández-Pajares, Fabricio S. Prol, Daniele B. M. Alves, João F. G. Monico   +4 more
doaj   +2 more sources

Synthetic‐Data‐Driven Supervised Learning for Pixel‐Wise Recognition of Ionogram Layer Traces

Journal of Geophysical Research: Machine Learning and Computation
The significance of automatic ionogram data interpretation is growing with the increasing number of ionosondes operating at minute‐level cadence. In recent years, deep‐learning models have substantially advanced ionogram pattern recognition.
Ruslan Sherstyukov, Alexander Kozlovsky, Thomas Ulich, Samson Moges, Thomas Leyser   +4 more
doaj   +2 more sources

Using Bidirectional Long Short-Term Memory Method for the Height of F2 Peak Forecasting from Ionosonde Measurements in the Australian Region

Remote Sensing, 2018
The height of F2 peak (hmF2) is an essential ionospheric parameter and its variations can reflect both the earth magnetic and solar activities. Therefore, reliable prediction of hmF2 is important for the study of space, such as solar wind and extreme ...
Andong Hu, Kefei Zhang
doaj   +2 more sources

Middle-Scale Ionospheric Disturbances Observed by the Oblique-Incidence Ionosonde Detection Network in North China after the 2011 Tohoku Tsunamigenic Earthquake. [PDF]

Sensors (Basel), 2021
The 2011 Tohoku earthquake and the following enormous tsunami caused great disturbances in the ionosphere that were observed in various regions along the Pacific Ocean.
Wang J, Chen G, Yu T, Deng Z, Yan X, Yang N.   +5 more
europepmc   +2 more sources

Global Sporadic‐E Occurrence Rate Climatology Using GPS Radio Occultation and Ionosonde Data

Journal of Geophysical Research - Space Physics, 2022
An updated global climatology of blanketing sporadic E (Es) is developed from a combined data set of Global Positioning System (GPS) radio occultation (RO) and ground‐based ionosonde soundings over the period of September 2006–January 2019. A total of 46
Travis Hodos, O. Nava, E. Dao, D. Emmons
semanticscholar   +1 more source

Improved Ionosonde Monitoring of the Sporadic E Layer Using the Frequency Domain Interferometry Technique

Remote Sensing, 2022
The sporadic E (Es) layer is a thin layer of ion plasma enhancement in the E-region ionosphere, typically at altitudes of 90–120 km with vertical and horizontal extent of several or several tens of kilometers.
Tongxin Liu, Guobin Yang, Chen Zhou, Chunhua Jiang, Wei Xu, B. Ni, Zhengyu Zhao   +6 more
semanticscholar   +1 more source

The Prototype of a Fast Vertical Ionosonde Based on Modern Software-Defined Radio Devices

Remote Sensing, 2022
The description and test results of the prototype of a fast ionosonde for the vertical sounding of the ionosphere, which makes it possible to record ionograms once a second, are presented.
A. Shindin, S. Moiseev, F. Vybornov, Kseniya K. Grechneva, Viktoriya Pavlova, V. Khashev   +5 more
semanticscholar   +1 more source

On the Ion Line Calibration by Plasma Line in ISR Measurements

Remote Sensing, 2023
The radar constant calibration in incoherent scatter radar ion line processing is essential for the data quality and was not paid enough attention in previous studies.
Xinan Yue, Fanyu Liu, Junyi Wang, Yonghui Wang, Yihui Cai, Feng Ding, Baiqi Ning, Mingyuan Li, Ning Zhang, Zhongqiu Wang, Su Xu   +10 more
doaj   +1 more source

A prototype of a portable coherent ionosonde [PDF]

Kosmìčna nauka ì tehnologìâ, 2018
A.V. ZALIZOVSKI, A.S. KASHCHEYEV, S.B. KASHCHEYEV, A.V. KOLOSKOV, V.N. LISACHENKO, V.V. PAZNUKHOV, I.I. PIKULIK, A.A. SOPIN, Yu.M. YAMPOLSKI   +8 more
openaire   +2 more sources

AISP programmable ionosonde

Advances in Space Research
Umberto Sciacca, Enrico Zuccheretti
exaly   +2 more sources