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Statements

Subject Item
n2:RIV%2F68378289%3A_____%2F11%3A00366436%21RIV12-AV0-68378289
rdf:type
n5:Vysledek skos:Concept
rdfs:seeAlso
http://www.agu.org/pubs/crossref/2011/2010JE003789.shtml
dcterms:description
We present results of a systematic study of electron densities in the dayside Martian ionosphere measured by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) instrument on board the Mars Express spacecraft. There are two distinct regions controlled by different physical mechanisms. The first region is located at altitudes up to about 5 neutral scale heights above the altitude of peak electron density. Electron densities in this region are well described by the basic Chapman theory. The observed small deviations can be most probably explained by the neutral scale height and electron temperature increasing with altitude rather than being constant. The second region is located at altitudes higher than about 10 neutral scale heights above the altitude of peak electron density. It is controlled primarily by diffusion, and the observed electron densities decrease exponentially with increasing altitude. We present results of a systematic study of electron densities in the dayside Martian ionosphere measured by the Mars Advanced Radar for Subsurface and Ionosphere Sounding (MARSIS) instrument on board the Mars Express spacecraft. There are two distinct regions controlled by different physical mechanisms. The first region is located at altitudes up to about 5 neutral scale heights above the altitude of peak electron density. Electron densities in this region are well described by the basic Chapman theory. The observed small deviations can be most probably explained by the neutral scale height and electron temperature increasing with altitude rather than being constant. The second region is located at altitudes higher than about 10 neutral scale heights above the altitude of peak electron density. It is controlled primarily by diffusion, and the observed electron densities decrease exponentially with increasing altitude.
dcterms:title
Dayside ionosphere of Mars: Empirical model based on data from the MARSIS instrument Dayside ionosphere of Mars: Empirical model based on data from the MARSIS instrument
skos:prefLabel
Dayside ionosphere of Mars: Empirical model based on data from the MARSIS instrument Dayside ionosphere of Mars: Empirical model based on data from the MARSIS instrument
skos:notation
RIV/68378289:_____/11:00366436!RIV12-AV0-68378289
n5:predkladatel
n16:ico%3A68378289
n3:aktivita
n8:Z
n3:aktivity
Z(AV0Z30420517)
n3:cisloPeriodika
-
n3:dodaniDat
n6:2012
n3:domaciTvurceVysledku
n12:3782395
n3:druhVysledku
n13:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
192987
n3:idVysledku
RIV/68378289:_____/11:00366436
n3:jazykVysledku
n17:eng
n3:klicovaSlova
RADIO OCCULTATION MEASUREMENTS; GLOBAL SURVEYOR OBSERVATIONS; MARTIAN IONOSPHERE
n3:klicoveSlovo
n11:MARTIAN%20IONOSPHERE n11:GLOBAL%20SURVEYOR%20OBSERVATIONS n11:RADIO%20OCCULTATION%20MEASUREMENTS
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[55531146045C]
n3:nazevZdroje
Journal of Geophysical Research
n3:obor
n14:BN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n6:2011
n3:svazekPeriodika
116
n3:tvurceVysledku
Truhlík, Vladimír Duru, F. Gurnett, D. A. Morgan, D. D. Němec, F.
n3:wos
000292834600002
n3:zamer
n19:AV0Z30420517
s:issn
0148-0227
s:numberOfPages
14
n20:doi
10.1029/2010JE003789