| 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/44D535L | |||
| Repository | sid.inpe.br/mtc-m21c/2021/03.25.13.42 | |||
| Last Update | 2021:06.27.12.48.46 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2021/03.25.13.42.14 | |||
| Metadata Last Update | 2022:04.03.22.39.45 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | MoroXDRSLLYWS:2021:StIoVa | |||
| Title | Study of the ionospheric variability in the South American Magnetic Anomaly (SAMA) during solar minimum (2017-2018)  | |||
| Year | 2021 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CN | |||
| Number of Files | 1 | |||
| Size | 112 KiB | |||
| 2. Context | ||||
| Author | 1 Moro, Juliano 2 Xu, J. 3 Denardini, Clezio Marcos 4 Resende, Laysa Cristina Araújo 5 Silva, Régia Pereira da 6 Liu, Z. 7 Li, H. 8 Yan, C. 9 Wang, C. 10 Schuch, Nelson Jorge | |||
| Resume Identifier | 1 2 3 4 5 6 7 8 9 10 8JMKD3MGP5W/3C9JHUD | |||
| Group | 1 COESU-CGGO-INPE-MCTI-GOV-BR 2 3 DIHPA-CGCE-INPE-MCTI-GOV-BR 4 DICEP-CGCE-INPE-MCTI-GOV-BR 5 DICEP-CGCE-INPE-MCTI-GOV-BR 6 7 8 9 10 COESU-CGGO-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 State Key Laboratory of Space Weather 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 State Key Laboratory of Space Weather 7 State Key Laboratory of Space Weather 8 State Key Laboratory of Space Weather 9 State Key Laboratory of Space Weather 10 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 julianopmoro@gmail.com 2 3 clezio.denardin@inpe.br 4 laysa.resende@gmail.com 5 regia.pereira@inpe.br 6 7 8 9 10 njschuch@gmail.com | |||
| Conference Name | Simpósio Brasileiro de Geofísica Espacial e Aeronomia, 8 (SBGEA) | |||
| Conference Location | Online | |||
| Date | 22-26 mar. | |||
| History (UTC) | 2021-03-25 13:42:14 :: simone -> administrator :: 2022-04-03 22:39:45 :: 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 | |||
| Version Type | publisher | |||
| Abstract | We investigate for the first time the variability of the F2 layer critical frequency (foF2), its peak height (hmF2), the thickness parameter B0, and the E-region critical frequency (foE) over Santa Maria (29.7oS, 53.7oW, dip= - 38o), a station located in the central region of the South American Magnetic Anomaly (SAMA). The selected ionospheric parameters were obtained from ionograms recorded by a recent Digisonde Portable Sounder (DPS-4D). The time period covers 309 days from 1st September 2017 to 30th August 2018. The diurnal analyses revealed a large day-to-day ionospheric variability, with some peculiarities as a strong semi-annual pattern superimposed to expected ionospheric behavior. Furthermore, the results show significant differences between the averaged foF2 in December and June solstices, revealing a possible presence of the annual asymmetry. The coefficient of variation (CV) is used as a quantitative description of the variability of each parameter versus time and season. Considering low solar flux and geomagnetically quiet days only, we note that CV is smaller during the daytime, and larger during nighttime for all parameters. The least variable ionospheric parameter in our study is foE, while the most variable one is B0. Regarding the F2- layer parameters, we observe that foF2 is much more variable than hmF2. We attribute the observed CV to the neutral atmosphere source over Santa Maria. The ionospheric variability is in general enhanced during geomagnetically disturbed periods. The estimated CV is higher over Santa Maria than Wuhan (30.5oN, 114.4oE, dip= 46o), China, a station with no influence of the SAMA. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Study of the... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGGO > Study of the... | |||
| 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://mtc-m21c.sid.inpe.br/ibi/8JMKD3MGP3W34R/44D535L | |||
| zipped data URL | http://mtc-m21c.sid.inpe.br/zip/8JMKD3MGP3W34R/44D535L | |||
| Language | en | |||
| Target File | Moro et al. (2020) VIII SBGEA final.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 8 sid.inpe.br/mtc-m21/2012/07.13.14.57.02 2 | |||
| 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 volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||