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
Pokhotelov D
(2008)
Ionospheric storm time dynamics as seen by GPS tomography and in situ spacecraft observations IONOSPHERIC STORM TIME DYNAMICS
in Journal of Geophysical Research: Space Physics
Mitchell C
(2012)
Keynote: Global navigation satellite systems and the ionosphere
Cooper C
(2019)
Measurement of Ionospheric Total Electron Content Using Single-Frequency Geostationary Satellite Observations
in Radio Science
Vincenzo Romano
(2013)
Measuring GNSS ionospheric total electron content at Concordia, and application to L-band radiometers
in Annals of Geophysics
Soleimani M
(2009)
Medical imaging and physiological modelling: linking physics and biology
in BioMedical Engineering OnLine
Benton C
(2014)
Method to measure the Stokes parameters of GPS signals STOKES PARAMETERS OF GPS SIGNALS
in Radio Science
Qiu W
(2010)
New iterative cone beam CT reconstruction software: parameter optimisation and convergence study.
in Computer methods and programs in biomedicine
Benton C
(2012)
New method for tracking the movement of ionospheric plasma TRACKING IONOSPHERIC PLASMA MOVEMENT
in Journal of Geophysical Research: Space Physics
Yin P
(2006)
Observations of the F region height redistribution in the storm-time ionosphere over Europe and the USA using GPS imaging F REGION HEIGHT REDISTRIBUTION
in Geophysical Research Letters
Gluyas J
(2018)
Passive, continuous monitoring of carbon dioxide geostorage using muon tomography.
in Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Burston R
(2016)
Polar cap plasma patch primary linear instability growth rates compared
in Journal of Geophysical Research: Space Physics
Alfonsi L
(2008)
Probing the high latitude ionosphere from ground-based observations: The state of current knowledge and capabilities during IPY (2007-2009)
in Journal of Atmospheric and Solar-Terrestrial Physics
Panicciari T
(2014)
Robust ionospheric tomography using sparse regularization
Muella M
(2010)
Scintillation-producing Fresnel-scale irregularities associated with the regions of steepest TEC gradients adjacent to the equatorial ionization anomaly SCINTILLATION AND TEC GRADIENTS
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
Hobbs S
(2014)
System Design for Geosynchronous Synthetic Aperture Radar Missions
in IEEE Transactions on Geoscience and Remote Sensing
Chartier A
(2012)
The use of ionosondes in GPS ionospheric tomography at low latitudes IONOSONDES IN GPS TOMOGRAPHY
in Journal of Geophysical Research: Space Physics
Rose J
(2011)
The use of ionospheric tomography and elevation masks to reduce the overall error in single-frequency GPS timing applications
in Advances in Space Research
Muella M
(2011)
Tomographic imaging of the equatorial and low-latitude ionosphere over central-eastern Brazil
in Earth, Planets and Space
Smith N
(2012)
Towards adapting a normal patient database for SPECT brain perfusion imaging
in Inverse Problems
Burston R
(2010)
Turbulent times in the northern polar ionosphere? TURBULENT TIMES IN NORTHERN POLAR IONOSPHERE?
in Journal of Geophysical Research: Space Physics
Panicciari T
(2015)
Using sparse regularization for multi-resolution tomography of the ionosphere
in Nonlinear Processes in Geophysics
Materassi M
(2007)
Wavelet analysis of GPS amplitude scintillation: A case study WAVELET ANALYSIS OF GPS SCINTILLATION
in Radio Science