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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier6qtX3pFwXQZ3r59YDa/Hb3Gy
Repositorysid.inpe.br/iris@1916/2005/08.16.13.34   (restricted access)
Last Update2005:08.16.03.00.00 (UTC) administrator
Metadata Repositorysid.inpe.br/iris@1916/2005/08.16.13.34.33
Metadata Last Update2021:07.18.04.01.20 (UTC) administrator
Secondary KeyINPE-12967-PRE/8246/
ISSN1364-6826
Citation KeyCAbduSobr:2004:DaVaUn
TitleVHF radar studies of the equatorial electrojet 3-m irregularities over Sao Luis: day-to-day variabilities under auroral activity and quiet conditions
Year2004
MonthNov.
Access Date2024, Mar. 28
Secondary TypePRE PI
Number of Files1
Size4238 KiB
2. Context
Author1 C, Denardini
2 Abdu, Mangalathayil Ali
3 Sobral, Jose Humberto Andrade
Resume Identifier1
2 8JMKD3MGP5W/3C9JHNK
3 8JMKD3MGP5W/3C9JHHA
Group1 DAE-INPE-MCT-BR
Affiliation1 Instituto Nacional de Pesquisas Espaciais, Divisão de Aeronomia (INPE. DAE)
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Volume66
Number17
Pages1603-1613
History (UTC)2005-08-16 13:34:34 :: sergio -> administrator ::
2006-09-28 22:27:36 :: administrator -> sergio ::
2008-01-07 12:52:55 :: sergio -> administrator ::
2008-06-10 22:25:04 :: administrator -> marciana ::
2008-07-23 17:12:47 :: marciana -> administrator ::
2021-07-18 04:01:20 :: administrator -> marciana :: 2004
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Keywordsequatorial
E-region
equatorial electrojet
VHF coherent scatter radar echoes
plasma instabilities / DISTURBANCE DYNAMO
FIELD
IONOSPHERE
FLUCTUATIONS
PENETRATION
VELOCITY
ORIGIN
WAVES
AbstractWe have analyzed the data collected during an observational campaign of the equatorial electrojet (EEJ) plasma irregularities using 50MHz coherent back-scatter radar operated at Sao Luis, Brazil. The 7-day campaign were characterized by a disturbed 3-day period in the beginning followed by 'quiet' days. A correlative analysis of the auroral electrojet (AE) indices and radar and magnetometer data are carried out to investigate the diverse characteristics of the responses of the EEJ and its instabilities processes to the disturbance zonal electric fields that penetrate to equatorial latitudes during auroral disturbance. Large degrees of day-to-day variability in the EEJ current intensity, 3-m echo powers and spectral features were observed even under absence of any auroral disturbances. Among the outstanding results of this analysis are the following findings: (a) the observed EEJ current and 3-m irregularity response phases to the intensification/decay phases of an auroral sub-storm event agree with the prediction by the existing models; (b) the phase relationship of the EEJ response versus AE intensification is altered/inverted under the presence of a ring current (D-st) development; (c) the amplitude of the EEJ response show clear local time dependence being maximum around noon; and (d) significant increase in the type-1 (two-stream wave) Doppler velocity exceeding the nominal ion-acoustic speed is observed under magnetically disturbed conditions. These results are presented and discussed. (C) 2004 Elsevier Ltd. All rights reserved..
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > VHF radar studies...
doc Directory Contentaccess
source Directory Contentthere are no files
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4. Conditions of access and use
Languageen
Target FileVHF radar studies.pdf
User Groupadministrator
marciana
sergio
Visibilityshown
Copy HolderSID/SCD
Archiving Policydenypublisher denyfinaldraft24
Read Permissiondeny from all and allow from 150.163
5. Allied materials
Next Higher Units8JMKD3MGPCW/3ETL868
DisseminationWEBSCI; PORTALCAPES; AGU; MGA; COMPENDEX.
Host Collectionsid.inpe.br/banon/2003/08.15.17.40
6. Notes
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