| 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/3SB3S2H | |||
| Repository | sid.inpe.br/mtc-m21c/2018/12.03.15.07 | |||
| Last Update | 2019:01.08.15.31.28 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m21c/2018/12.03.15.07.32 | |||
| Metadata Last Update | 2019:01.14.17.06.39 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| Citation Key | BragaVoDaMeEcBaKw:2018:KiMeCo | |||
| Title | What causes CME travel time estimation errors: their kinematic measurements in the corona or the limited understanding of the forces in their IP propagation?  | |||
| Year | 2018 | |||
| Access Date | 2024, May 17 | |||
| Secondary Type | PRE CI | |||
| Number of Files | 1 | |||
| Size | 139 KiB | |||
| 2. Context | ||||
| Author | 1 Braga, Carlos Roberto 2 Vourlidas, Angelos 3 Dal Lago, Alisson 4 Mendonça, Rafael Rodrigues Souza de 5 Echer, Ezequiel 6 Balmaceda, Laura 7 Kwon, Ryun Young | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JGH3 4 5 8JMKD3MGP5W/3C9JH3D | |||
| Group | 1 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 2 3 DIDGE-CGCEA-INPE-MCTIC-GOV-BR 4 5 DIDGE-CGCEA-INPE-MCTIC-GOV-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Johns Hopkins University Applied Physics Laboratory 3 Instituto Nacional de Pesquisas Espaciais (INPE) 4 Chinese Academy of Sciences 5 Instituto Nacional de Pesquisas Espaciais (INPE) 6 George Mason University 7 George Mason University Fairfax | |||
| Author e-Mail Address | 1 carlos.braga@inpe.br 2 3 alisson.dallago@inpe.br 4 5 ezequiel.echer@inpe.br | |||
| Conference Name | AGU Fall Meeting | |||
| Conference Location | Washington, D. C. | |||
| Date | 10-14 dec. | |||
| History (UTC) | 2018-12-03 15:07:32 :: simone -> administrator :: 2019-01-14 17:06:39 :: 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 | The coronal mass ejections (CME) time-of-arrival (ToA) estimates from the corona to 1 AU have been a topic of central interest due to the space weather phenomena associated with their arrival, such as intense geomagnetic storms. Several ToA estimates using kinematic input from white-light coronagraphs observations, both from a single and multi-viewpoint, have been made available, especially in the last decade. Despite of the development of many methods, ToA estimates errors are no better than 10 hours, on average. Our objective is to evaluate whether these discrepancies are associated with the limited analytical description of the forces acting on CMEs or with the improper kinematic input from observations. We took a set of well-observed CMEs from the Sun to 1 AU and investigate possible reasons for the discrepancies. We considered that the CME propagation is controlled by the aerodynamic drag due to the background solar wind and the Lorentz forces. We discuss the discrepancies caused in the travel time estimate due to drag force in CMEs whose background solar wind conditions (such as speed) change dramatically in the period from the CME release until its arrival at 1 AU. We also estimate a possible force associated with the interaction of CMEs with interplanetary structures such as corotating interaction regions. Back-of-the-envelope calculations suggest that typical magnetic field and particle density observed in these structures could significantly change the CME velocity and lead to ToA errors. (This work is funded by FAPESP, Sao Paulo Research Foundation, grant #2017/21270-7). | |||
| Area | CEA | |||
| Arrangement | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDGE > What causes CME... | |||
| 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/3SB3S2H | |||
| zipped data URL | http://urlib.net/zip/8JMKD3MGP3W34R/3SB3S2H | |||
| Language | en | |||
| Target File | abstract_carlos_agu_2018.pdf | |||
| User Group | self-uploading-INPE-MCTI-GOV-BR simone | |||
| Visibility | shown | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Next Higher Units | 8JMKD3MGPCW/3EU29DP | |||
| Citing Item List | sid.inpe.br/mtc-m21/2012/07.13.14.39.46 3 sid.inpe.br/mtc-m21/2012/07.13.14.45.47 3 | |||
| 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 | ||||