Online citations, reference lists, and bibliographies.

Mechanisms Underlying The Prereversal Enhancement Of The Vertical Plasma Drift In The Low-latitude Ionosphere

J. Eccles, J. St.-Maurice, R. Schunk
Published 2015 · Geology

Cite This
Download PDF
Analyze on Scholarcy
The evening prereversal enhancement (PRE) of the vertical plasma drift has important consequences for the Appleton density anomaly and the stability of the nighttime ionosphere. Simplified simulations were used to review the three competing theories of the PRE origin, to explore their relative importance, and to indentify their interdependence. The mechanisms involved in the generation and climatology of the PRE are, first, a curl-free electric field response to rapid changes in the vertical electric field associated with the nighttime F region dynamo; second, a divergence of Hall currents in the E region away from the magnetic equator; and, third, the moderating effect of the large Cowling conductivities in the equatorial E region. The simulations indicate that the equatorial Cowling conductivity creates an important current path that limits the other two mechanisms prior to equatorial sunset and releases them after equatorial sunset. The curl-free mechanism is the dominant mechanism when the terminator and magnetic meridian are aligned in part due to the accelerating F region zonal wind. When the solar terminator is not aligned with the magnetic meridian, there is an interaction involving all three mechanisms contributing to the magnitude and timing of the PRE. Finally, the altitude profile of the PRE decays more quickly with altitude when the curl-free mechanism dominates as compared to when the Hall current mechanism dominates.
This paper references
Electrical coupling of the E- and F-regions and its effect on F-region drifts and winds
R. A. Heelis (1974)
Comparison of zonal neutral winds with equatorial plasma bubble and plasma drift velocities
Narayan Prasad Chapagain (2013)
A theory of electrostatic fields in a horizontally stratified ionosphere subject to a vertical magnetic field
Donald T. Farley (1959)
A theory of electrostatic fi elds in a horizontally strati fi ed ionosphere subject to a vertical magnetic fi eld
E. Bonelli (1959)
Low‐latitude plasma drifts from a simulation of the global atmospheric dynamo
D. Crain (1993)
Atmospheric solar tides and their electrodynamic effects. I - The global Sq current system. II - The equatorial electrojet
J. Forbes (1976)
A numerical model of the ionospheric dynamo. I - Formulation and numerical technique. II - Electrostatic field at equatorial and low latitudes. III - Electric current at equatorial and low latitudes
A. Singh (1987)
The F-layer dynamo
H. Rishbeth (1971)
The ionospheric wind dynamo — II
J. E. Titheridge
The ionospheric wind dynamo—I: Lunar tide
J. Tarpley (1970)
Control of the seasonal and longitudinal occurrence of equatorial scintillations by the longitudinal gradient in integrated E region Pedersen conductivity
R. T. Tsunoda (1985)
Evidence of a velocity shear in bulk plasma motion associated with the post‐sunset rise of the equatorial F‐layer
R. T. Tsunoda (1981)
Expanded Capabilities for the Ionospheric Forecast Model
R. W. Schunk (1997)
International Geomagnetic Reference Field: the eleventh generation
C. Finlay (2010)
Theory for modeling the equatorial evening ionosphere and the origin of the shear in the horizontal plasma flow
G. Haerendel (1992)
Role of the equatorial ionization anomaly in the development of the evening prereversal enhancement of the equatorial zonal electric field
S. M. Dharma Prakash (2009)
Three-dimensional equatorial spread F modeling
J. Huba (2008)
Radar and satellite global equatorial F-region vertical drift model
L. Scherliess (1999)
Equatorial F region zonal plasma drifts
B. Fejer (1985)
Theory of equatorial spread F, preprint Max-Planck-Instit. für extraterr. Phys., Garching bei Munchen
G Haerendel (1973)
The ionospheric wind dynamo—II: Solar tides☆
J. Tarpley (1970)
The effect of gravity and pressure in the electrodynamics of the low‐latitude ionosphere
J. Eccles (2004)
Electric currents in the ionosphere - The conductivity
W. Baker (1953)
A numerical model of the ionospheric dynamo—II. Electrostatic field at equatorial and low latitudes
A. Singh (1987)
Atmospheric solar tides and their electrodynamic effects
J. Forbes (1975)
Polarization fields produced by winds in the equatorial F-region
H. Rishbeth (1971)
Temperatures in the upper ionosphere and plasmasphere
J. Titheridge (1998)
The pre-reversal enhancement of the zonal electric field in the equatorial
D. T. Farley (1986)
The pre - reversal enhancement of the zonal electric fi eld in the equatorial ionosphere
E. Kudeki (1986)
A numerical model of the ionospheric dynamo—III electric current at equatorial and low latitudes
A. Singh (1987)
Radar observations of F region equatorial irregularities
R. Woodman (1976)
Further studies of directional E-layer currents
Henry Rishbeth (1983)
Nrlmsise-00 Empirical Model of the Atmosphere: Statistical Comparisons and Scientific Issues
J. M. Picone (2002)
The prereversal enhancement of the zonal electric field in the equatorial ionosphere
Donald T. Farley (1986)
Effects of the vertical plasma drift velocity on the generation and evolution of equatorial spread F
B. Fejer (1999)
Altitudinal dependence of evening equatorial F region vertical plasma drifts
B. Fejer (2014)
Interferometer studies of equatorial F region irregularities and drifts
E. Kudeki (1981)
The role of the equatorial electrojet in the evening ionosphere
G. Haerendel (1992)
On the production mechanism of electric currents and fields in the ionosphere
A. Richmond (1976)
An empirical model of the Earth's horizontal wind fields: HWM07
D. Drob (2008)
An assessment of the contributions of various tidal winds to the Sq current system
R. Stening (1969)
Climatology of F region zonal drifts over Jicamarca
F spread (2005)
Electrodynamics of the equatorial evening ionosphere: 2. Conductivity influences on convection, current, and electrodynamic energy flow
A. Richmond (2015)
High‐latitude ionospheric drivers and their effects on wind patterns in the thermosphere
L. Liuzzo (2013)
Study of the evening plasma drift vortex in the low‐latitude ionosphere using San Marco electric field measurements
J. Eccles (1999)
Modeling investigation of the evening prereversal enhancement of the zonal electric field in the equatorial ionosphere
J. Eccles (1998)
A simple model of low‐latitude electric fields
J. Eccles (1998)
Climatology of F region zonal plasma drifts over Jicamarca
B. Fejer (2005)
Theory of Equatorial Spread F
G. Haerendel (1973)
Lunar atmospheric tidal effects in the plasma drifts observed by the Low-Latitude Ionospheric Sensor Network
V. Eccles (2011)
Satellite studies of mid- and low-latitude ionospheric disturbance zonal plasma drifts
L. Scherliess (1998)

This paper is referenced by
Statistical analysis of equatorial plasma irregularities retrieved from Swarm 2013‐‐2019 observations
Ercha Aa (2020)
On the Genesis of Postmidnight Equatorial Spread F: Results for the American/Peruvian Sector
W. Zhan (2018)
28 July 2014 : 2 . Forcing from below ?
Koyadan Koroth Ajith (2018)
Semimonthly oscillation observed in the start time of equatorialSpread-F
I. Paulino (2019)
Analysis and physical interpretation of ionosferic plasma irregularities effect on positioning
Izarra Rodríguez Bilbao (2016)
Statistical Analysis of TEC Distributions observed over South and Central America
J. Villalobos (2020)
Diurnal evolution of the F region electron density local time gradient at low and middle latitudes resolved by the Swarm constellation
Chao Xiong (2016)
Day-to-day and short-term variabilities in the equatorial plasma bubble/spread F irregularity seeding and development
M. Abdu (2019)
The dependence of four-peak longitudinal structure of the tropical electric field on the processes in the lower atmosphere and geomagnetic field configuration
Vladimir V. Klimenko (2019)
A Simulation Study on the Relationship Between Field‐Aligned and Field‐Perpendicular Plasma Velocities in the Ionospheric F Region
Jiangpin Chen (2020)
Geomagnetic storm effects on the occurrences of ionospheric irregularities over the African equatorial/low-latitude region
P. Amaechi (2018)
Multi-instrumented observations of the equatorial F-region during June solstice: large-scale wave structures and spread-F
F. S. Rodrigues (2018)
Challenges to Equatorial Plasma Bubble and Ionospheric Scintillation Short-Term Forecasting and Future Aspects in East and Southeast Asia
Guozhu Li (2020)
Review of the generation mechanisms of post-midnight irregularities in the equatorial and low-latitude ionosphere
Y. Otsuka (2018)
A minimum in the latitude variation of spread-F at March equinox
N. Balan (2018)
Unseasonal development of post-sunset F-region irregularities over Southeast Asia on 28 July 2014: 1. Forcing from above?
B. Carter (2018)
Observation of seasonal asymmetry in the range spread F occurrence at different longitudes during low and moderate solar activity
A. Afolayan (2019)
Ion‐neutral coupling effects on low‐latitude thermospheric evening winds
W. Evonosky (2016)
Semimonthly oscillation observed in the start times of equatorial plasma bubbles
Igo Paulino (2020)
Spread F occurrence features at different longitudinal regions during low and moderate solar activity
A. Afolayan (2019)
Estimation of nighttime dip-equatorial E-region current density using measurements and models
Kuldeep Pandey (2016)
West wall structuring of equatorial plasma bubbles simulated by three‐dimensional HIRB model
Tatsuhiro Yokoyama (2015)
On the possible contribution of ionospheric vertical drifts to TEC modelling in low latitudes
Valence Habyarimana (2020)
Modeling equatorial ionospheric vertical plasma drifts using machine learning
S. Shidler (2020)
West wall structuring of equatorial plasma bubbles simulated by three-dimensional HIRB model: WEST WALL STRUCTURING OF PLASMA BUBBLE
Tatsuhiro Yokoyama (2015)
Post-sunset rise of equatorial F layer—or upwelling growth?
R. T. Tsunoda (2018)
F$F$-Region Dynamo Simulations at Low and Mid-Latitude
A. Maute (2017)
Long‐lasting latitudinal four‐peak structure in the nighttime ionosphere observed by the Swarm constellation
Chao Xiong (2019)
A Simulation Study on the Latitudinal Variations of Ionospheric Zonal Electric Fields Under Geomagnetically Quiet Conditions
J. Chen (2019)
The dawn enhancement of the equatorial ionospheric vertical plasma drift
R. Zhang (2015)
Semantic Scholar Logo Some data provided by SemanticScholar