DATA ASSIMILATION FOR THE STUDY OF MAGNETOSPHERE-IONOSPHERE-ATMOSPHERE COUPLING
Lead Research Organisation:
University of Bath
Department Name: Electronic and Electrical Engineering
Abstract
State-of-the-art ionospheric imaging techniques use Global Positioning System (GPS) satellite data. In a similar manner to medical imaging, where the patient is examined by X-rays, in ionospheric imaging the upper atmosphere (ionosphere) is examined by radio waves. The next big step for ionospheric imaging is to combine it with models of the ionosphere. The reason to do this is to discover the underlying physics, which we cannot do very well by just looking at the images. We need to link the images to models of winds, solar radiation and electric fields in order to understand what causes the upper atmospheric environment to behave as it does during extreme events called storms. These are not the weather storms we are familiar with but rather these space-weather storms are caused by the bombardment of the outer realms of the atmosphere with particles and radiation from the Sun. The mathematics we need to link the measurements to the models is called data assimilation. Data assimilation has already been strikingly successful in meteorology. The data assimilation to be developed under this grant is for much higher up in the atmosphere (above 100 km) and will be used to investigate the coupling between the neutral and ionized atmosphere and to determine the relationships between ionosphere-atmosphere dynamics and magnetosphere dynamics.
Publications
Mitchell C
(2007)
Advances in Earth Science - From Earthquakes to Global Warming
Panicciari T
(2014)
Robust ionospheric tomography using sparse regularization
Mitchell C
(2012)
Keynote: Global navigation satellite systems and the ionosphere
Baumgardner J
(2013)
Imaging space weather over Europe
in Space Weather
Bust G
(2007)
Four-dimensional GPS imaging of space weather storms
in Space Weather
Smith A
(2008)
GPS scintillation in the high arctic associated with an auroral arc
in Space Weather
Bust G
(2008)
History, current state, and future directions of ionospheric imaging
in Reviews of Geophysics
Chartier A
(2014)
Ionospheric imaging in Africa IONOSPHERIC IMAGING IN AFRICA
in Radio Science
Materassi M
(2007)
Wavelet analysis of GPS amplitude scintillation: A case study
in Radio Science
Meggs R
(2006)
A study into the errors in vertical total electron content mapping using GPS data
in Radio Science
Adewale A
(2012)
A study of L-band scintillations and total electron content at an equatorial station, Lagos, Nigeria
in Radio Science
Alfonsi L
(2011)
Bipolar climatology of GPS ionospheric scintillation at solar minimum
in Radio Science
Dear R
(2006)
GPS interfrequency biases and total electron content errors in ionospheric imaging over Europe
in Radio Science
Rose J
(2014)
Ionospheric corrections for GPS time transfer
in Radio Science
Spencer P
(2011)
Imaging of 3-D plasmaspheric electron density using GPS to LEO satellite differential phase observations
in Radio Science
Cooper C
(2019)
Measurement of Ionospheric Total Electron Content Using Single-Frequency Geostationary Satellite Observations
in Radio Science
Benton C
(2011)
Isolating the multipath component in GNSS signal-to-noise data and locating reflecting objects
in Radio Science
Benton C
(2014)
Method to measure the Stokes parameters of GPS signals STOKES PARAMETERS OF GPS SIGNALS
in Radio Science
Soleimani M
(2009)
FOUR-DIMENSIONAL ELECTRICAL CAPACITANCE TOMOGRAPHY IMAGING USING EXPERIMENTAL DATA
in Progress In Electromagnetics Research
Pokhotelov D
(2010)
High-latitude ionospheric response to co-rotating interaction region- and coronal mass ejection-driven geomagnetic storms revealed by GPS tomography and ionosondes
in Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Pengpan T
(2011)
A motion-compensated cone-beam CT using electrical impedance tomography imaging.
in Physiological measurement
Gluyas J
(2018)
Passive, continuous monitoring of carbon dioxide geostorage using muon tomography.
in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Smith N
(2010)
Image-model coupling: application to an ionospheric storm
in Nonlinear Processes in Geophysics
Panicciari T
(2015)
Using sparse regularization for multi-resolution tomography of the ionosphere
in Nonlinear Processes in Geophysics
Smith N
(2009)
Image-model coupling: a simple information theoretic perspective for image sequences
in Nonlinear Processes in Geophysics
Pengpan T
(2010)
A dual modality of cone beam CT and electrical impedance tomography for lung imaging
in Journal of Physics: Conference Series
Burston R
(2010)
Turbulent times in the northern polar ionosphere?
in Journal of Geophysical Research: Space Physics
Chartier A
(2013)
A comparison of the effects of initializing different thermosphere-ionosphere model fields on storm time plasma density forecasts
in Journal of Geophysical Research: Space Physics
Pokhotelov D
(2008)
Ionospheric storm time dynamics as seen by GPS tomography and in situ spacecraft observations
in Journal of Geophysical Research: Space Physics
Kinrade J
(2012)
Ionospheric scintillation over Antarctica during the storm of 5-6 April 2010
in Journal of Geophysical Research: Space Physics
Muella M
(2010)
Scintillation-producing Fresnel-scale irregularities associated with the regions of steepest TEC gradients adjacent to the equatorial ionization anomaly
in Journal of Geophysical Research: Space Physics
Benton C
(2012)
New method for tracking the movement of ionospheric plasma
in Journal of Geophysical Research: Space Physics
Kinrade J
(2013)
GPS phase scintillation associated with optical auroral emissions: First statistical results from the geographic South Pole
in Journal of Geophysical Research: Space Physics
Pokhotelov D
(2009)
Ionospheric response to the corotating interaction region-driven geomagnetic storm of October 2002
in Journal of Geophysical Research: Space Physics
Burston R
(2009)
Correlation between scintillation indices and gradient drift wave amplitudes in the northern polar ionosphere
in Journal of Geophysical Research: Space Physics
Chartier A
(2016)
Ionospheric data assimilation and forecasting during storms
in Journal of Geophysical Research: Space Physics
Yin P
(2014)
Improving the vertical electron density profile in ionospheric imaging at storm time: A case study on 25-27 September 2011
in Journal of Geophysical Research: Space Physics
Chartier A
(2018)
Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm
in Journal of Geophysical Research: Space Physics
Chartier A
(2012)
The use of ionosondes in GPS ionospheric tomography at low latitudes
in Journal of Geophysical Research: Space Physics
Burston R
(2016)
Polar cap plasma patch primary linear instability growth rates compared
in Journal of Geophysical Research: Space Physics
Forte B
(2017)
Identification of scintillation signatures on GPS signals originating from plasma structures detected with EISCAT incoherent scatter radar along the same line of sight.
in Journal of geophysical research. Space physics
Katamzi Z
(2012)
Statistical analysis of travelling ionospheric disturbances using TEC observations from geostationary satellites
in Journal of Atmospheric and Solar-Terrestrial Physics
Yin P
(2009)
Imaging of the Antarctic ionosphere: Experimental results
in Journal of Atmospheric and Solar-Terrestrial Physics