| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP3W34T/45P6G82 | |||
| Repository | sid.inpe.br/mtc-m21d/2021/11.08.11.51 | |||
| Last Update | 2021:11.08.11.51.29 (UTC) simone | |||
| Metadata Repository | sid.inpe.br/mtc-m21d/2021/11.08.11.51.29 | |||
| Metadata Last Update | 2022:04.03.19.24.06 (UTC) administrator | |||
| DOI | 10.3390/atmos12111409 | |||
| ISSN | 2073-4433 | |||
| Citation Key | EssienFTWBKLAGB:2021:LoStMe | |||
| Title | Long-term study on medium-scale traveling ionospheric disturbances observed over the south american equatorial region  | |||
| Year | 2021 | |||
| Month | Nov. | |||
| Access Date | 2024, May 05 | |||
| Type of Work | journal article | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 2889 KiB | |||
| 2. Context | ||||
| Author | 1 Essien, Patrick 2 Figueiredo, Cosme Alexandre Oliveira Barros 3 Takahashi, Hisao 4 Wrasse, Cristiano Max 5 Barros, Diego 6 Klutse, N. A. B. 7 Lomotey, Solomon Otoo 8 Ayorinde, Toyese Tunde 9 Gobbi, Delano 10 Bilibio, Anderson Vestena | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JHCM 4 5 6 7 8 9 8JMKD3MGP5W/3C9JGTE | |||
| ORCID | 1 0000-0002-7258-9307 2 0000-0003-4423-5111 | |||
| Group | 1 GESATM-CEA-DIPGR-INPE-MCTI-GOV-BR 2 DICEP-CGCE-INPE-MCTI-GOV-BR 3 DICEP-CGCE-INPE-MCTI-GOV-BR 4 DICEP-CGCE-INPE-MCTI-GOV-BR 5 GESATM-CEA-DIPGR-INPE-MCTI-GOV-BR 6 7 GESATM-CEA-DIPGR-INPE-MCTI-GOV-BR 8 GESATM-CEA-DIPGR-INPE-MCTI-GOV-BR 9 DICEP-CGCE-INPE-MCTI-GOV-BR 10 GESATM-CEA-DIPGR-INPE-MCTI-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Instituto Nacional de Pesquisas Espaciais (INPE) 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 African Institute for Mathematical Sciences (AIMS) 7 Instituto Nacional de Pesquisas Espaciais (INPE) 8 Instituto Nacional de Pesquisas Espaciais (INPE) 9 Instituto Nacional de Pesquisas Espaciais (INPE) 10 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 pessien@aims.edu.gh 2 cosme.figueiredo@inpe.br 3 hisao.takahashi@inpe.br 4 cristiano.Wrasse@inpe.br 5 diego.barros@inpe.br 6 nklutse@ug.edu.gh 7 solomon.lomotey@inpe.br 8 tndayorinde@gmail.com 9 delano.gobbi@inpe.br 10 anderson.bilibio@inpe.br | |||
| Journal | Atmosphere | |||
| Volume | 12 | |||
| Number | 11 | |||
| Pages | e1409 | |||
| Secondary Mark | B3_ENGENHARIAS_III B3_ENGENHARIAS_I B3_CIÊNCIAS_AMBIENTAIS B4_ENGENHARIAS_II B5_GEOCIÊNCIAS | |||
| History (UTC) | 2021-11-08 11:51:29 :: simone -> administrator :: 2021-11-08 11:51:31 :: administrator -> simone :: 2021 2021-11-08 11:52:31 :: simone -> administrator :: 2021 2022-04-03 19:24:06 :: 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 | |||
| Keywords | Detrended TEC Equatorial Medium-scale traveling ionospheric disturbances | |||
| Abstract | Using data collected by the GNSS dual-frequency receivers network, de-trended TEC maps were generated to identify and characterize the medium-scale traveling ionospheric disturbances (MSTIDs) over the South American equatorial region (latitude: 0◦ to 15◦ S and longitude: 30◦ to 55◦ W) during solar cycle 24 (from January 2014 to December 2019). A total of 712 MSTIDs were observed during quiet geomagnetic conditions. The Frequency of occurrence of MSTID is high during the solar maximum and low in the minimum phase. This might be due to the solar cycle dependence of gravity wave activity in the lower atmosphere and gravity wave propagation conditions in the thermosphere. The predominant daytime MSTIDs, representing 80% of the total observations, occurred in winter (June-August season in the southern hemisphere) with the secondary peak in the equinox; while the evening time MSTIDs, representing 18% of the entire events, occurred in summer (December to February season) and equinox (March to May and September to November), and the remaining 2% of the MSTIDs were observed during nighttime. The seasonal variation of the MSTID events was attributed to the source mechanisms generating them, the wind filtering and dissipation effects, and the local time dependency. The horizontal wavelengths of the MSTIDs were mostly concentrated between 500 and 800 km, with the mean value of 667 ± 131 km. The observed periods ranged from 30 to 45 min with the mean value of 36 ± 7 min. The observed horizontal phase speeds were distributed around 200 to 400 m/s, with the corresponding mean of 301 ± 75 m/s. The MSTIDs in the winter solstice and equinoctial months preferentially propagated northeastward and northwestward. Meanwhile, during the summer solstice, they propagated in all directions. The anisotropy of the propagation direction might be due to several reasons: the wind and dissipative filtering effects, ion drag effects, the primary source region, and the presence of the secondary or tertiary gravity waves in the thermosphere. Atmospheric gravity waves from strong convective sources might be the primary precursor for the observed equatorial MSTIDs. In all seasons, we noted that the MSTIDs propagating southeastward were probably excited by the likely gravity waves generated by the intertropical convergence zone (ITCZ). | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Long-term study on... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Long-term study on... | |||
| 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/8JMKD3MGP3W34T/45P6G82 | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34T/45P6G82 | |||
| Language | en | |||
| Target File | essien_atmosphere.pdf | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Archiving Policy | allowpublisher allowfinaldraft | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3F2PBEE 8JMKD3MGPCW/46KTFK8 | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.44.27 1 | |||
| Dissemination | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Host Collection | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||