Subionospheric VLF perturbations observed at a low latitude station Varanasi (L=1.07)

被引：1

作者：

Singh, Ashutosh K. ^{[1
,2
]}

Singh, A. K. ^{[1
]}

Singh, R. ^{[3
]}

Singh, R. P. ^{[1
]}

Adams, K. ^{[4
]}

Dowden, R. L. ^{[4
]}

机构：

[1] Banaras Hindu Univ, Dept Phys, Atmospher Res Lab, Varanasi 221005, Uttar Pradesh, India

[2] Raja Balwant Singh Engn Tech Campus, Agra, Uttar Pradesh, India

[3] IIG, KSK Geomagnet Res Lab, Allahabad, Uttar Pradesh, India

[4] Low Frequency Electromagnet Res Ltd, Dunedin, New Zealand

来源：

ADVANCES IN SPACE RESEARCH | 2015年 / 55卷 / 02期

关键词：

Earth-ionosphere waveguide; Early VLF events; Lightning; Trimpi event; SPRITES94 AIRCRAFT CAMPAIGN; LOWER IONOSPHERE; RED SPRITES; SIGNATURES; IONIZATION; SCATTERING; ASSOCIATION; DISCHARGES; EVENTS; ELVES;

D O I：

10.1016/j.asr.2014.10.032

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Initial results of subionospheric very low frequency (VLF) perturbations observed on NWC (19.8 kHz) and NPM (21.4 kHz) transmitter signals at low latitude ground station Varanasi, India, during the period January-June 2010, are presented. Characteristics and occurrence rates of these events mainly observed during nighttime are studied. Most of the early VLF events had slow recovery with amplitude perturbations of 0.5-4.5 dB and phase changes of 3-12 degrees. Temporal variation of the events is studied. World Wide Lightning Location Network data along with the broadband VLF data are analyzed to find the location of causative lightning discharge and/or the sferics associated with these early VLF events. Lightning induced changes in D-region ionospheric conductivity are attributed to the perturbations in the VLF signals. (C) 2014 COSPAR. Published by Elsevier Ltd. All rights reserved.

引用

页码：576 / 585

页数：10

共 50 条

[41] OBSERVED POLARISATION OF HIGH FREQUENCY RADIO WAVES AT A LOW LATITUDE STATION
ABHIRAMAREDDY, C
RAMACHANDRAN, B
JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS, 1963, 25 (01): : 13 - +
[42] LOW ALTITUDE VLF NOSIE OBSERVED NEAR L=3
KOONS, HC
MCPHERSO.DA
HARBRIDG.WB
TRANSACTIONS-AMERICAN GEOPHYSICAL UNION, 1968, 49 (04): : 747 - &
[43] Observation of a unique storm-time VLF chorus emissions at low latitude Indian ground station Jammu (L=1.17)
Singh, K. K.
ASTROPHYSICS AND SPACE SCIENCE, 2017, 362 (08)
[44] Occurrence of ionospheric scintillations under different solar and geomagnetic conditions over low latitude station Varanasi
Mondal, Mukulika
Kumar, Sanjay
Banola, S.
Singh, A. K.
ADVANCES IN SPACE RESEARCH, 2024, 73 (07) : 3658 - 3674
[45] A comparative study of ELF and VLF noise characteristics of nor’wester at a low latitude tropical station
Hirak Sarkar
Abhijit Banerjee
Shankar Prasad Mitra
Paramita Sen
Asit Baran Bhattacharya
Goutam Sengupta
SN Applied Sciences, 2019, 1
[46] A comparative study of ELF and VLF noise characteristics of nor'wester at a low latitude tropical station
Sarkar, Hirak
Banerjee, Abhijit
Mitra, Shankar Prasad
Sen, Paramita
Bhattacharya, Asit Baran
Sengupta, Goutam
SN APPLIED SCIENCES, 2019, 1 (02):
[47] Characteristics of modulating VLF hiss observed at Indian Antarctic Station, Maitri (L=4.5)
Singh, A. K.
Singh, S. B.
Singh, Shubha
Patel, R. P.
Singh, R. P.
CURRENT SCIENCE, 2010, 98 (09): : 1224 - 1229
[48] A STUDY OF SUB-IONOSPHERIC EARLY VLF PERTURBATIONS OBSERVED AT AGRA (L=1.15), INDIA
Pandey, Uma
Singh, Ashutosh K.
Singh, O. P.
Singh, Birbal
Saraswat, V. K.
2014 XXXITH URSI GENERAL ASSEMBLY AND SCIENTIFIC SYMPOSIUM (URSI GASS), 2014,
[49] Whistler triplets, bands, and fine structures observed in a low latitude ground station
Singh, B
Singh, R
Singh, R
GEOPHYSICAL RESEARCH LETTERS, 1997, 24 (20) : 2507 - 2510
[50] Ionospheric Alfven resonator observed at low-latitude ground station, Muroto
Nose, M.
Uyeshima, M.
Kawai, J.
Hase, H.
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 122 (07) : 7240 - 7255

← 1 2 3 4 5 →