First results of the wave measurements by the WHU VLF wave detection system at the Chinese Great Wall station in Antarctica

X Gu, Q Wang, B Ni, W Xu, S Wang, J Yi… - Journal of …, 2022 - Wiley Online Library
Abstract A Very Low Frequency (VLF) wave detection system has been designed at Wuhan
University (WHU) and recently deployed by the Polar Research Institute of China at the …

A detailed investigation of low latitude tweek atmospherics observed by the WHU ELF/VLF receiver: I. Automatic detection and analysis method

RX Zhou, XD Gu, KX Yang, GS Li, BB Ni… - Earth and Planetary …, 2020 - Wiley Online Library
As a dispersive wave mode produced by lightning strokes, tweek atmospherics provide
important hints of lower ionospheric (ie, D‐region) electron density. Based on data …

Automatic Detection of VLF Tweek Signals Based on the YOLO Model

W Xu, W Ma, S Wang, X Gu, B Ni, W Cheng, J Feng… - Remote Sensing, 2023 - mdpi.com
Tweek signals are a special type of VLF (very low frequency) pulse, originally produced by
lightning discharge, which becomes dispersive after repetitive bounces within the …

[HTML][HTML] Broadband longwave radio remote sensing instrumentation

MB Cohen, RK Said, EW Paschal… - Review of Scientific …, 2018 - pubs.aip.org
We present the performance characteristics of a high-sensitivity radio receiver for the
frequency band 0.5-470 kHz, known as the Low Frequency Atmospheric Weather …

Nighttime D region electron density measurements from ELF‐VLF tweek radio atmospherics recorded at low latitudes

AK Maurya, B Veenadhari, R Singh… - Journal of …, 2012 - Wiley Online Library
Dispersive atmospherics (tweeks) observed during 2010 simultaneously at two low‐latitude
stations, Allahabad (geomagnetic latitude, 16.05° N) and Nainital (geomagnetic latitude …

Solar flares induced D-region ionospheric and geomagnetic perturbations

R Selvakumaran, AK Maurya, SA Gokani… - Journal of Atmospheric …, 2015 - Elsevier
The D-region ionospheric perturbations caused by solar flares which occurred during
January 2010–February 2011, a low solar activity period of current solar cycle 24, have …

Ionospheric perturbation during the South American total solar eclipse on 14th December 2020 revealed with the Chilean GPS eyeball

MN Shrivastava, AK Maurya, KN Kumar - Scientific Reports, 2021 - nature.com
The influence of the South American total solar eclipse of 14th December 2020 on the
ionosphere is studied by using the continuous Chilean Global Positioning System (GPS) …

A detailed investigation of low latitude tweek atmospherics observed by the WHU ELF/VLF receiver: 2. Occurrence features and associated ionospheric parameters

J Yi, XD Gu, W Cheng, XY Tang, L Chen… - Earth and planetary …, 2020 - Wiley Online Library
As a companion paper to Zhou RX et al.(2020), this study describes application of the
automatic detection and analysis module to identify all the tweek atmospherics detectible in …

Effect of 21 June 2020 solar eclipse on the ionosphere using VLF and GPS observations and modeling

G Tripathi, SB Singh, S Kumar, AK Singh… - Advances in Space …, 2022 - Elsevier
A solar eclipse event provides a great opportunity to examine the behavioral concept of the
ionospheric electron density (N e) variability in the low latitude region. The current work …

Low‐mid latitude D region ionospheric perturbations associated with 22 July 2009 total solar eclipse: Wave‐like signatures inferred from VLF observations

AK Maurya, DV Phanikumar, R Singh… - Journal of …, 2014 - Wiley Online Library
We present first report on the periodic wave‐like signatures (WLS) in the D region
ionosphere during 22 July 2009 total solar eclipse using JJI, Japan, very low frequency …