Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Abhikesh Kumar"'
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-20 (2022)
Abstract In this paper, we present the D-region ionospheric response during the lifespan (10–19 December 2020) of a severe category 5 tropical cyclone (TC) Yasa in the South Pacific by using the very low frequency (VLF, 3–30 kHz) signals from NPM
Externí odkaz:
https://doaj.org/article/8ca6d8693bf444de8a11da8fddf43ec4
Autor:
Abhikesh Kumar, Sushil Kumar
Publikováno v:
Earth, Planets and Space, Vol 70, Iss 1, Pp 1-14 (2018)
Abstract The effects of solar flares on the propagation of subionospheric VLF signals from NWC and NLK transmitter stations monitored at a low-latitude station, Suva (18.2°S, 178.4°E), Fiji, between December 2006 and December 2010 (an unprecedented
Externí odkaz:
https://doaj.org/article/11d92afebef6441b9107a91d4c93c918
Publikováno v:
Journal of Geophysical Research: Space Physics. 128
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d9b56b7bb2526d5ded4f15c0d70dad2
https://doi.org/10.1029/2022ja030964
https://doi.org/10.1029/2022ja030964
Publikováno v:
Earth, Planets and Space. 74
In this paper, we present the D-region ionospheric response during the lifespan (10–19 December 2020) of a severe category 5 tropical cyclone (TC) Yasa in the South Pacific by using the very low frequency (VLF, 3–30 kHz) signals from NPM, NLK, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e68e9c5175d8c608ec197c8cea9137ea
https://doi.org/10.1186/s40623-022-01632-3
https://doi.org/10.1186/s40623-022-01632-3
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 229:105834
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d99253c8c236d1855c4a656151364484
https://doi.org/10.1016/j.jastp.2022.105834
https://doi.org/10.1016/j.jastp.2022.105834
Autor:
Abhikesh Kumar, Sushil Kumar
Publikováno v:
Journal of Geophysical Research: Space Physics. 125
The diurnal variations in the phase and amplitude of NWC, NPM, and NLK very low frequency (VLF) transmissions received at Suva, Fiji, have been modeled using the Long Wave Propagation Capability (LWPC V2.1) code to determine the ionospheric D region
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb15b3c4988f790ca81f48ae444f60f9
https://doi.org/10.1029/2019ja027536
https://doi.org/10.1029/2019ja027536
Publikováno v:
Journal of Geophysical Research: Space Physics. 121:5930-5943
We estimate D region changes due to 22 July 2009 total solar eclipse (SE), 13–14 November 2012 total SE, and 9–10 May 2013 annular SE, using VLF navigational transmitters signal observations at Suva, Fiji. The North West Cape (NWC) signal (19.8 k
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e4a4b7365f3652c253848ae5475a476
https://doi.org/10.1002/2016ja022695
https://doi.org/10.1002/2016ja022695
Response of the low-latitudeDregion ionosphere to extreme space weather event of 14-16 December 2006
Autor:
Frederick W. Menk, B. Veenadhari, Ajeet K. Maurya, Sushil Kumar, Abhikesh Kumar, Rajesh Singh
Publikováno v:
Journal of Geophysical Research: Space Physics. 120:788-799
The response of the D region low-latitude ionosphere has been examined for extreme space weather event of 14–16 December 2006 associated with a X1.5 solar flare and an intense geomagnetic storm (Dst = −146 nT) using VLF signals from Northwest Cap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23176207e5095011cffe056b29aeda12
https://doi.org/10.1002/2014ja020751
https://doi.org/10.1002/2014ja020751
Autor:
Bhaskara Veenadhari, D. V. Phanikumar, Young-Sil Kwak, Abhikesh Kumar, Abhay Kumar Singh, Sushil Kumar, Rajesh Singh, K. Niranjan Kumar, Ajeet K. Maurya
Publikováno v:
Journal of Geophysical Research: Space Physics. 119:8512-8523
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 (VLF) navigational transmitter signal (22.2 kHz) observations at stations, Alla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c87cd5d71df6b1e9f62adea5efd0636
https://doi.org/10.1002/2013ja019521
https://doi.org/10.1002/2013ja019521
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 102:71-80
Subionospheric propagation from a Very Low Frequency (VLF) transmitter (VTX, 18.2 kHz) received at a low latitude station Suva, Fiji over a Transmitter–Receiver Great Circle Path (TRGCP) length of 11,400 km has been utilized to identify any possibl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b8ced580bd95ae77bf11df90dfdcea
https://doi.org/10.1016/j.jastp.2013.04.011
https://doi.org/10.1016/j.jastp.2013.04.011