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1. Identity statement
Reference TypeJournal Article
Sitemtc-m16.sid.inpe.br
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier6qtX3pFwXQZGivnJVY/LBFbH
Repositorysid.inpe.br/mtc-m16@80/2006/06.30.19.16   (restricted access)
Last Update2006:06.30.19.16.44 (UTC) administrator
Metadata Repositorysid.inpe.br/mtc-m16@80/2006/06.30.19.16.46
Metadata Last Update2018:06.05.01.16.51 (UTC) administrator
Secondary KeyINPE-13812--PRE/8998
ISSN0273-1177
Citation KeyMuralikrishna:2006:ElTeVa
TitleElectron temperature variations in developing plasma bubbles-rocket observations from Brazil
Year2006
Access Date2024, Apr. 28
Secondary TypePRE PI
Number of Files1
Size169 KiB
2. Context
AuthorMuralikrishna, Polinaya
Resume Identifier8JMKD3MGP5W/3C9JJ4G
GroupDAE-INPE-MCT-BR
AffiliationInstituto Nacional de Pesquisas Espaciais, Divisão de Aeronomia (INPE.DAE)
JournalAdvances in Space Research
Volume37
Number5
Pages903-909
History (UTC)2006-06-30 19:16:46 :: simone -> administrator ::
2018-06-05 01:16:51 :: administrator -> marciana :: 2006
3. Content and structure
Is the master or a copy?is the master
Content Stagecompleted
Transferable1
Content TypeExternal Contribution
KeywordsElectron temperature
Plasma bubble
Ionosphere
F-region
Langmuir probe
Electron density
AbstractIn situ measurements of the height variation of the ionospheric electron density and electron temperature were made on 18th December, 1995 at 2117 h (LT) from the equatorial station Alcantara (2.31°S; 44.4°W) in Brazil, with a rocket-borne Langmuir probe. The main objective of the measurement was to study the height variation of the ionospheric electron density and electron temperature under ionospheric conditions favourable for the development of plasma bubbles. The rocket reached an apogee altitude of 557 km covering a horizontal range of 589 km. The upleg electron density profile showed the presence of a clearly defined base for the F-region around 300 km, while the downleg profile showed the presence of several plasma bubbles in this height region as well as in the upper F-region. Electron temperature was estimated by applying a sweep potential varying from −1.5 to +2.5 V in about 2.5 s, to the Langmuir probe. During the rocket upleg the base of the F-region showed abnormally large electron temperatures reaching more than 3000 K just below the F-peak at 300 km. The maximum electron temperature observed above the F-peak was only about 750 K close to the rocket apogee. During the downleg relatively larger temperatures were observed inside the plasma bubbles, especially at the top side of the bubbles. Bottom side of the bubbles were associated with relatively lower electron temperatures. The region below the base of the F-region seems to be associated with very large electron temperatures just before the development of plasma bubbles. Once the bubbles develop and start rising up the electron temperature falls down except inside the plasma bubbles. Rising bubbles seem to have larger electron temperatures inside especially on their top sides. Bubble regions are associated with relatively larger electron temperatures in comparison with the regions outside the bubbles. Possible reasons for the higher electron temperature observed inside a plasma bubble could be larger particle precipitation often observed close to the South Atlantic Magnetic Anomaly region, heating by photoelectrons or the operation of various plasma instability mechanisms that can result in the transfer of wave energy into the kinetic energy of electrons.
AreaCEA
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAE > Electron temperature variations...
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Languageen
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5. Allied materials
Next Higher Units8JMKD3MGPCW/3ETL868
DisseminationWEBSCI; PORTALCAPES; MGA; COMPENDEX.
Host Collectionsid.inpe.br/banon/2003/08.15.17.40
6. Notes
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