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DC Field | Value | Language |
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dc.contributor.author | Phanikumar, D.V. | |
dc.contributor.author | Kwak, Y.-S. | |
dc.contributor.author | Patra, A.K. | |
dc.contributor.author | Maurya, A.K. | |
dc.contributor.author | Singh, Rajesh | |
dc.contributor.author | Park, S.-M. | |
dc.date.accessioned | 2015-12-07T10:42:34Z | |
dc.date.accessioned | 2021-02-12T09:21:21Z | - |
dc.date.available | 2015-12-07T10:42:34Z | |
dc.date.available | 2021-02-12T09:21:21Z | - |
dc.date.issued | 2014 | |
dc.identifier.citation | Advances in Space Research, v.54/6, p.961-968, 2014, doi: 10.1016/j.asr.2014.06.005 | en_US |
dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/787 | - |
dc.description.abstract | In this paper, we analyze VLF signals received at Busan to study the the D-region changes linked with the solar eclipse event of 22 July 2009 for very short (∼390 km) transmitter–receiver great circle path (TRGCP) during local noon time 00:36–03:13 UT (09:36–12:13 KST). The eclipse crossed south of Busan with a maximum obscuration of ∼84%. Observations clearly show a reduction of ∼6.2 dB in the VLF signal strength at the time of maximum solar obscuration (84% at 01:53 UT) as compared to those observed on the control days. Estimated values of change in Wait ionospheric parameters: reflection height (h′) in km and inverse scale height parameter (β) in km−1 from Long Wave Propagation Capability (LWPC) model during the maximum eclipse phase as compared to unperturbed ionosphere are 7 km and 0.055 km−1, respectively. Moreover, the D-region electron density estimated from model computation shows 95% depletion in electron density at the height of ∼71 km. The reflection height is found to increase by ∼7 km in the D-region during the eclipse as compared to those on the control days, implying a depletion in the Lyman-α flux by a factor of ∼7. The present observations are discussed in the light of current understanding on the solar eclipse induced D-region dynamics. | en_US |
dc.language.iso | en | en_US |
dc.subject | D-region | en_US |
dc.subject | VLF waves | en_US |
dc.subject | Mid-latitude ionosphere | en_US |
dc.subject | Total solar eclipse | en_US |
dc.title | Response of the mid-latitude D-region ionosphere to the total solar eclipse of 22 July 2009 studied using VLF signals in South Korean peninsula | en_US |
dc.type | Article | en_US |
dc.identifier.accession | 091451 | |
Appears in Collections: | ODA_Reprints |
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SinghR_etal_AdvSpRes_2014.pdf Restricted Access | Reprint | 1.33 MB | Adobe PDF | View/Open Request a copy |
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