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1. Identity statement
Reference TypeConference Paper (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34P/3J4GBMP
Repositorysid.inpe.br/mtc-m21b/2015/03.05.19.29
Last Update2015:03.05.19.29.40 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21b/2015/03.05.19.29.40
Metadata Last Update2021:02.06.15.37.39 (UTC) administrator
Secondary KeyINPE--PRE/
Citation KeyMedeirosBatiPaulAbdu:1994:ReHeBe
TitleF region height behavior over Cachoeira Paulista, Brazil, using digisonde data
Year1994
Access Date2025, Feb. 09
Secondary TypePRE CI
Number of Files1
Size220 KiB
2. Context
Author1 Medeiros, Rui Tertuliano
2 Batista, Inez Staciarini
3 Paula, Eurico Rodrigues de
4 Abdu, Mangalathayil Ali
Group1 DAE
2 DAE
3 DAE
4 DAE
Affiliation1 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)
Author e-Mail Address1
2 inez.batista@inpe.br
3 eurico@dae.inpe.br
4 maabdu@dae.inpe.br
EditorSakanaka, P. H.
Del Bosco, Edson
Alves, Maria Virginia
Conference NameInternational Conference on Plasma Physics.
Conference LocationFoz do Iguaçu, PR
Date31 Oct. - 04 Nov.
Book TitleProceedings
History (UTC)2015-03-05 19:30:20 :: simone -> administrator :: 1994
2021-02-06 15:37:39 :: administrator -> :: 1994
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
Version Typepublisher
AbstractIn March 1990 a Digisonde has been installed in Cachoeira Paulista (22.5ºS, 45ºW), a low latitude station over Brazil. The data from April 1990 to january 1993 has been analyzed in order to study the virtual (h'F) and the true (hmF) heights of the F region Both h'F and hmF show a consistent pre-dawn maximum ocurring around 0800 UT (0500 LT) that is more pronounced from April to August. From setptember to december we observer two pre-dawn maxima occurring between 0000 UT and 0800 UT. The earlier maximum becomes more important during the local summer months. In spite of this very general characteristics we have observed a peculiar behavior during disturbed periods. On April 29 and 30, 1990, two disturbed days with EKp equal to 32º and 24+ respectively, the F layer height showed a much more pronounced maxima around 0800 UT. The maximum in hmF (corresponding to the frequency of 5 MHz) that was around 300 km during the quiet days, increased to 370 and 395 km on the disturbed days. Another peculiar behavior was observed during the development of the main phase of the magnetic storm on June 12, 1990 when the hmF increased to 350 km around 2230 UT (the mean value is around 230 km during winter months). In both of these cases, spread F was observed over Cachoeira Paulista simultaneously with the uplift of the layer. Is is well known that spread F over low latitude stations such as Cachoeira Paulista is generally correlated with the development of plasma bubbles that are generated over equatorial stations and extend to the low latitudes through the magnetic field lines. However, in April 1990 case, spread F was not observed over Fortaleza (4ºS, 38ºW), an station located near the magnetic equator and at the same longitude sector, but eastward of Cachoeira Paulista. In the June 1990 spread F was observed over Fortaleza (FZ) but nearly simultaneously with the event over Cachoeira Paulista (CP). The effects of electric fields and thermospheric winds in the generation of the disturbed behavior of the F region height are discussed.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > F region height...
doc Directory Contentaccess
source Directory Contentthere are no files
agreement Directory Content
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4. Conditions of access and use
data URLhttp://urlib.net/ibi/8JMKD3MGP3W34P/3J4GBMP
zipped data URLhttp://urlib.net/zip/8JMKD3MGP3W34P/3J4GBMP
Languageen
Target FileMedeiros_f region.pdf
User Groupsimone
Reader Groupadministrator
simone
Visibilityshown
Read Permissionallow from all
Update Permissionnot transferred
5. Allied materials
Mirror Repositorysid.inpe.br/mtc-m21b/2013/09.26.14.25.22
Next Higher Units8JMKD3MGPCW/3ETL868
Citing Item Listsid.inpe.br/bibdigital/2013/09.29.20.43 1
Host Collectionsid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notes
Empty Fieldsarchivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition format isbn issn keywords label lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume


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