| 1. Identity statement | ||||
| Reference Type | Journal Article | |||
| Site | mtc-m16d.sid.inpe.br | |||
| Holder Code | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identifier | 8JMKD3MGP7W/3A7BC5E | |||
| Repository | sid.inpe.br/mtc-m19/2011/08.02.12.38 (restricted access) | |||
| Last Update | 2011:12.06.17.36.40 (UTC) administrator | |||
| Metadata Repository | sid.inpe.br/mtc-m19/2011/08.02.12.38.57 | |||
| Metadata Last Update | 2018:06.05.04.24.41 (UTC) administrator | |||
| Secondary Key | INPE--PRE/ | |||
| DOI | 10.1007/s11207-011-9739-0 | |||
| ISSN | 0038-0938 1573-093X | |||
| Citation Key | EcherTsurGonzKozy:2011:20Ma16 | |||
| Title | High Speed Stream Properties and Related Geomagnetic Activity During the Whole Heliosphere Interval (WHI): 20 March to 16 April 2008  | |||
| Project | CNPq (PQ-300211/2008-2); FAPESP agency (2008/06650-9) | |||
| Year | 2011 | |||
| Month | Mar. | |||
| Access Date | 2024, May 04 | |||
| Secondary Type | PRE PI | |||
| Number of Files | 1 | |||
| Size | 1034 KiB | |||
| 2. Context | ||||
| Author | 1 Echer, E. 2 Tsurutani, Bruce T 3 Gonzalez, Walter Demetrio 4 Kozyra, J. | |||
| Resume Identifier | 1 2 3 8JMKD3MGP5W/3C9JJC4 | |||
| Group | 1 DGE-CEA-INPE-MCT-BR 2 3 DGE-CEA-INPE-MCT-BR | |||
| Affiliation | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Jet Propulsion Laboratory, California Institute of Technology 3 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| e-Mail Address | secretaria.cpa@dir.inpe.br | |||
| Journal | Solar Physics | |||
| Volume | xx | |||
| Secondary Mark | B1_ASTRONOMIA_/_FÍSICA B1_BIOTECNOLOGIA B2_CIÊNCIA_DA_COMPUTAÇÃO B1_ENGENHARIAS_IV A1_GEOCIÊNCIAS A2_INTERDISCIPLINAR | |||
| History (UTC) | 2011-08-02 12:38:57 :: secretaria.cpa@dir.inpe.br -> administrator :: 2011-08-02 12:38:57 :: administrator -> secretaria.cpa@dir.inpe.br :: 2011 2011-11-01 11:45:46 :: secretaria.cpa@dir.inpe.br -> tereza@sid.inpe.br :: 2011 2011-12-06 17:36:41 :: tereza@sid.inpe.br -> administrator :: 2011 2018-06-05 04:24:41 :: administrator -> tereza@sid.inpe.br :: 2011 | |||
| 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 | Solar wind High-speed streams Geomagnetic activity Solar cycle Space weather Whole heliosphere interval Alfv¨¦n waves Nested variances | |||
| Abstract | We study the interplanetary features and concomitant geomagnetic activity of the two high-speed streams (HSSs) selected by the Whole Heliosphere Interval (WHI) campaign participants: 20 March to 16 April 2008 in Carrington rotation (CR) 2068. This interval was chosen to perform a comprehensive study of HSSs and their geoeffectiveness during this "deep" solar minimum. The two HSSs within the interval were characterized by fast solar-wind speeds (peak values > 600 km s-1) containing large-amplitude Alfv¨¦nic fluctuations, as is typical of HSSs during normal solar minima. However, the interplanetary magnetic field (IMF) magnitude [B o] was exceptionally low (¡Ö3 - 5 nT) during these HSSs, leading to lower than usual IMF B z values. The first HSS (HSS1) had favorable IMF polarity for geomagnetic activity (negative during northern Spring). The average AE and Dst for the HSS1 proper (HSS1P) were + 258 nT and - 21 nT, respectively. The second HSS (HSS2) had a positive sector IMF polarity, one that is less favorable for geomagnetic activity. The AE and Dst index averages were + 188 nT and - 7 nT, both lower than corresponding numbers for the first event, as expected. The HSS1P geomagnetic activity is comparable to, and the HSS2P geomagnetic activity lower than, corresponding observations for the previous minimum (1996). Both events' geomagnetic activities are lower than HSS events previously studied in the declining phase (in 2003). In general, V sw was faster for the HSSs in 2008 compared to 1996. The southward IMF B z was lower in the former. The product of these two parameters [V sw and IMF B z ] comprises the solar-wind electric field, which is most directly associated with the energy input into the magnetosphere during the HSS intervals. Thus the combined effects led to the solar wind energy input in 2008 being slightly less than that in 1996. A detailed analysis of magnetic-field variances and Alfv¨¦nicity is performed to explore the characteristics of Alfv¨¦n waves (a central element in the geoeffectiveness of HSSs) during the WHI. The B z variances in the proto-CIR (PCIR) were ¡Ö 30 nT2 and < 10 nT2 in the high speed streams proper. | |||
| Area | CEA | |||
| Arrangement | urlib.net > Fonds > Produção anterior à 2021 > DIDGE > High Speed Stream... | |||
| doc Directory Content | access | |||
| source Directory Content | there are no files | |||
| agreement Directory Content |
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| 4. Conditions of access and use | ||||
| Language | en | |||
| User Group | administrator secretaria.cpa@dir.inpe.br tereza@sid.inpe.br | |||
| Visibility | shown | |||
| Archiving Policy | denypublisher denyfinaldraft12 | |||
| Read Permission | deny from all and allow from 150.163 | |||
| Update Permission | not transferred | |||
| 5. Allied materials | ||||
| Mirror Repository | sid.inpe.br/mtc-m19@80/2009/08.21.17.02.53 | |||
| Next Higher Units | 8JMKD3MGPCW/3EU29DP | |||
| Dissemination | WEBSCI; PORTALCAPES. | |||
| Host Collection | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 | |||
| 6. Notes | ||||
| Empty Fields | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel electronicmailaddress format isbn label lineage mark nextedition notes number orcid pages parameterlist parentrepositories previousedition previouslowerunit progress readergroup rightsholder schedulinginformation secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url | |||
| 7. Description control | ||||
| e-Mail (login) | tereza@sid.inpe.br | |||
| update | ||||