Low-latitude ionosphere and thermosphere

Decadal observations from the CHAMP mission

Claudia Stolle, Huixin Liu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

During its more than 10 year mission, the CHAMP satellite has revealed exciting new observations of the upper F region ionosphere and the thermosphere. Special benefit has been obtained from simultaneous observations of plasma and neutrals, and the magnetic field, which has led to many new findings and insights into the thermosphere-ionosphere system. This chapter reviews these new findings at low and equatorial latitudes, from the point of view of coupling between the atmosphere and the magnetic field and between different atmospheric regions. Gross features in the electron density and temperature and in the neutral density and wind are tackled, such as the equatorial anomaly, the electron temperature morning overshoot, equatorial plasma irregularities, the zonal wind jet, terminator waves, or findings of the wave-4 structure in plasma and neutrals. For specific examples, it is demonstrated that results of physical models have large impact in understanding the new observations and underlying processes. Examples include the distribution of electron temperature during the morning that is suggested to follow the inclination of the geomagnetic field and the longitudinal wave-4 structures in the plasma and neutrals that are believed to be generated by the same source but through different coupling mechanisms. It is also demonstrated that even the most sophisticated models cannot fully reproduce observations of even large-scale ionospheric and thermospheric features.

Original languageEnglish
Pages (from-to)259-272
Number of pages14
JournalGeophysical Monograph Series
Volume201
DOIs
Publication statusPublished - 2013

Fingerprint

CHAMP
thermosphere
tropical regions
ionospheres
ionosphere
plasma
morning
electron energy
magnetic field
electron
temperature
longitudinal waves
F region
geomagnetism
zonal wind
irregularities
geomagnetic field
magnetic fields
electron density
ionospherics

All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Low-latitude ionosphere and thermosphere : Decadal observations from the CHAMP mission. / Stolle, Claudia; Liu, Huixin.

In: Geophysical Monograph Series, Vol. 201, 2013, p. 259-272.

Research output: Contribution to journalArticle

@article{5cd3fad86d47447786ae7c8a7f31e968,
title = "Low-latitude ionosphere and thermosphere: Decadal observations from the CHAMP mission",
abstract = "During its more than 10 year mission, the CHAMP satellite has revealed exciting new observations of the upper F region ionosphere and the thermosphere. Special benefit has been obtained from simultaneous observations of plasma and neutrals, and the magnetic field, which has led to many new findings and insights into the thermosphere-ionosphere system. This chapter reviews these new findings at low and equatorial latitudes, from the point of view of coupling between the atmosphere and the magnetic field and between different atmospheric regions. Gross features in the electron density and temperature and in the neutral density and wind are tackled, such as the equatorial anomaly, the electron temperature morning overshoot, equatorial plasma irregularities, the zonal wind jet, terminator waves, or findings of the wave-4 structure in plasma and neutrals. For specific examples, it is demonstrated that results of physical models have large impact in understanding the new observations and underlying processes. Examples include the distribution of electron temperature during the morning that is suggested to follow the inclination of the geomagnetic field and the longitudinal wave-4 structures in the plasma and neutrals that are believed to be generated by the same source but through different coupling mechanisms. It is also demonstrated that even the most sophisticated models cannot fully reproduce observations of even large-scale ionospheric and thermospheric features.",
author = "Claudia Stolle and Huixin Liu",
year = "2013",
doi = "10.1029/2012GM001285",
language = "English",
volume = "201",
pages = "259--272",
journal = "Geophysical Monograph Series",
issn = "0065-8448",
publisher = "American Geophysical Union",

}

TY - JOUR

T1 - Low-latitude ionosphere and thermosphere

T2 - Decadal observations from the CHAMP mission

AU - Stolle, Claudia

AU - Liu, Huixin

PY - 2013

Y1 - 2013

N2 - During its more than 10 year mission, the CHAMP satellite has revealed exciting new observations of the upper F region ionosphere and the thermosphere. Special benefit has been obtained from simultaneous observations of plasma and neutrals, and the magnetic field, which has led to many new findings and insights into the thermosphere-ionosphere system. This chapter reviews these new findings at low and equatorial latitudes, from the point of view of coupling between the atmosphere and the magnetic field and between different atmospheric regions. Gross features in the electron density and temperature and in the neutral density and wind are tackled, such as the equatorial anomaly, the electron temperature morning overshoot, equatorial plasma irregularities, the zonal wind jet, terminator waves, or findings of the wave-4 structure in plasma and neutrals. For specific examples, it is demonstrated that results of physical models have large impact in understanding the new observations and underlying processes. Examples include the distribution of electron temperature during the morning that is suggested to follow the inclination of the geomagnetic field and the longitudinal wave-4 structures in the plasma and neutrals that are believed to be generated by the same source but through different coupling mechanisms. It is also demonstrated that even the most sophisticated models cannot fully reproduce observations of even large-scale ionospheric and thermospheric features.

AB - During its more than 10 year mission, the CHAMP satellite has revealed exciting new observations of the upper F region ionosphere and the thermosphere. Special benefit has been obtained from simultaneous observations of plasma and neutrals, and the magnetic field, which has led to many new findings and insights into the thermosphere-ionosphere system. This chapter reviews these new findings at low and equatorial latitudes, from the point of view of coupling between the atmosphere and the magnetic field and between different atmospheric regions. Gross features in the electron density and temperature and in the neutral density and wind are tackled, such as the equatorial anomaly, the electron temperature morning overshoot, equatorial plasma irregularities, the zonal wind jet, terminator waves, or findings of the wave-4 structure in plasma and neutrals. For specific examples, it is demonstrated that results of physical models have large impact in understanding the new observations and underlying processes. Examples include the distribution of electron temperature during the morning that is suggested to follow the inclination of the geomagnetic field and the longitudinal wave-4 structures in the plasma and neutrals that are believed to be generated by the same source but through different coupling mechanisms. It is also demonstrated that even the most sophisticated models cannot fully reproduce observations of even large-scale ionospheric and thermospheric features.

UR - http://www.scopus.com/inward/record.url?scp=84899554809&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84899554809&partnerID=8YFLogxK

U2 - 10.1029/2012GM001285

DO - 10.1029/2012GM001285

M3 - Article

VL - 201

SP - 259

EP - 272

JO - Geophysical Monograph Series

JF - Geophysical Monograph Series

SN - 0065-8448

ER -