| 1. Identity statement | ||||
| Reference Type | Conference Paper (Conference Proceedings) | |||
| Site | mtc-m21c.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34R/44D4USB | |||
| Repository | sid.inpe.br/mtc-m21c/2021/03.25.13.27 | |||
| Last Update | 2021:06.26.17.21.03 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/03.25.13.27.55 | |||
| Metadata Last Update | 2022:04.03.22.39.44 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | CorreiaRunhBageDAmi:2021:ChGrWa | |||
| Title | Characterization of gravity waves in the lower ionosphere using VLF observations at Comandante Ferraz Brazilian Antarctic Station  | |||
| Year | 2021 | |||
| Access Date | 2024, May 14 | |||
| Secondary Type | PRE CN | |||
| Number of Files | 1 | |||
| Size | 5977 KiB | |||
| 2. Context | ||||
| Author | 1 Correia, Emilia 2 Runheitte, L. T. M. 3 Bageston, José Valentin 4 D'Amico, D. E. | |||
| Resume Identifier | 1 8JMKD3MGP5W/3C9JH2C | |||
| Group | 1 DICEP-CGCE-INPE-MCTI-GOV-BR 2 3 COESU-CGGO-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Centro de Rádio Astronomia e Astrofísica Mackenzie 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Centro de Rádio Astronomia e Astrofísica Mackenzie | |||
| Author e-Mail Address | 1 emilia.correia@inpe.br 2 3 jose.bageston@inpe.br | |||
| Conference Name | Simpósio Brasileiro de Geofísica Espacial e Aeronomia, 8 (SBGEA) | |||
| Conference Location | Online | |||
| Date | 22-26 mar. | |||
| History (UTC) | 2021-03-25 13:27:55 :: simone -> administrator :: 2022-04-03 22:39:44 :: administrator -> simone :: 2021 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | The goal of this work is to investigate the gravity waves (GWs) characteristics in the low ionosphere using very low frequency (VLF) radio signals. The spatial modulations produced by the GWs affect the conditions of the electron density at reflection height of the VLF signals, which produce fluctuations of the electrical conductivity in the D-region that can be detected as variations in the amplitude and phase of VLF narrowband signals. The analysis considered the VLF signal transmitted from the US Cutler/Marine (NAA) station that was received at Comandante Ferraz Brazilian Antarctic Station (EACF, 62.1o S, 58.4o W), which is a great circle path crossing longitudinally the Drake Passage. The wave periods of the GWs detected in the low ionosphere are obtained using the wavelet analysis applied to the VLF amplitude. The use of the VLF technique was validated comparing the wave period and duration properties of one GW event observed simultaneously with a co-located airglow all-sky imager both operating at EACF. The statistical analysis of the wave periods detected using VLF technique for 2007 showed that the GW events occur almost all nights, with a higher frequency per month from March to October. The predominant wave periods are more frequent between 10 and 15 min occurring preferentially during the equinoxes, but there are some events with periods higher than 60 min appearing only in the solstices (January and July). These results show that VLF technique is a powerful tool to obtain the wave period and duration of GW events in the low ionosphere, with the advantage to be independent of sky conditions, and can be used during daytime and year-round. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Characterization of gravity... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGGO > Characterization of gravity... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| data URL | http://urlib.net/ibi/8JMKD3MGP3W34R/44D4USB | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/44D4USB | |||
| Language | en | |||
| Target File | Correiaetal-2020-angeo-GW-VLF.pdf | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/46KTFK8 8JMKD3MGPCW/46KUBT5 | |||
| Citing Item List | sid.inpe.br/bibdigital/2022/04.03.22.35 7 sid.inpe.br/mtc-m21/2012/07.13.14.45.19 1 | |||
| Host Collection | urlib.net/www/2017/11.22.19.04 | |||
| 6. Notes | ||||
| Empty Fields | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||