| 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/3QTQTG5 | |||
| Repository | sid.inpe.br/mtc-m21c/2018/04.18.16.35 | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2018/04.18.16.35.46 | |||
| Metadata Last Update | 2020:12.07.21.11.31 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | EspinosaSarmientoPadiSilv:2018:EsAmGe | |||
| Title | Estimate of the amplitude of geomagnetically induced currents (gic) at different places in brazil duringmagnetic storms occurred in the year 2015  | |||
| Year | 2018 | |||
| Access Date | 2024, May 18 | |||
| Secondary Type | PRE CI | |||
| 2. Context | ||||
| Author | 1 Espinosa Sarmiento, Karen Viviana 2 Padilha, Antônio Lopes 3 Silva, Ligia Alves da | |||
| Resume Identifier | 1 2 8JMKD3MGP5W/3C9JGJG | |||
| Group | 1 GES-CEA-SESPG-INPE-MCTIC-GOV-BR 2 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 3 DIDGE-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Author e-Mail Address | 1 karen.sarmiento@inpe.br 2 antonio.padilha@inpe.br 3 ligia.silva@inpe.br | |||
| Conference Name | Latin American Conference on Space Geophysics, 11 (COLAGE) | |||
| Conference Location | Buenos Aires, Argentina | |||
| Date | 16-20 abr. | |||
| History (UTC) | 2018-04-18 16:35:55 :: simone -> simone] :: 2018 2018-04-18 16:35:55 :: simone] -> administrator :: 2018 2019-01-04 16:57:04 :: administrator -> simone :: 2018 2019-01-07 13:57:54 :: simone -> administrator :: 2018 2020-12-07 21:11:31 :: administrator -> simone :: 2018 | |||
| 3. Content and structure | ||||
| Is the master or a copy? | is the master | |||
| Content Stage | completed | |||
| Transferable | 1 | |||
| Content Type | External Contribution | |||
| Abstract | Geomagnetic induced currents (GIC) detected on the Earths surface are related to extreme solar events and may represent a signicant danger to technological systems installed both in space and in the ground. Its eects are relatively well studied in auroral and midlatitude regions, but there are still few studies in low latitudes and near the magnetic equator. To evaluate its eects in the low latitude region of South America and thus contribute to the development of new mechanisms that may help to minimize its possible impact, the intensity of the GIC in four locations in the Brazilian territory is here evaluated during four geomagnetic storms that occurred during the year 2015. Geomagnetic eld variation data recorded by uxgate magnetometers of the Brazilian Space Weather program at INPE (EMBRACE) are available during these storms. Using information from the electrical conductivity distribution below each magnetic station, geoelectric eld variations were derived for the period of the magnetic storms. Subsequently, GIC values were estimated using the Lehtinen-Pirjola (LP) engineering model and available information from a 500 kV transmission grid located in Central Brazil (around the Furnas substation node in Itumbiara, State of Goias ). After validating the numerical calculations comparing with the GIC data measured at this substation, the electric power transmission grid at Itumbiara was hypothetically shifted to the stations where measurements of the geomagnetic eld are available. The maximum GIC amplitude estimated by the LP model was about 8A during the main phase of a magnetic storm on June 21 (Dst = -204 nT) at a station in the center-west Brazil. Although this station is aected by the diurnal currents of the equatorial electrojet, the comparison with the other storms showed that, besides the large dH/dt of this storm, the main responsible for the GIC is the high resistivity of the rocks below this station. | |||
| Area | CEA | |||
| Arrangement 1 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > Estimate of the... | |||
| Arrangement 2 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Estimate of the... | |||
| doc Directory Content | there are no files | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | simone | |||
| Reader Group | administrator simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3EU29DP 8JMKD3MGPCW/3F2PBEE | |||
| 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 numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume | |||
| 7. Description control | ||||
| e-Mail (login) | simone | |||
| update | ||||