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
Chartier A
(2012)
A 12year comparison of MIDAS and IRI 2007 ionospheric Total Electron Content
in Advances in Space Research
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
Pengpan T
(2010)
A dual modality of cone beam CT and electrical impedance tomography for lung imaging
in Journal of Physics: Conference Series
Pengpan T
(2011)
A motion-compensated cone-beam CT using electrical impedance tomography imaging.
in Physiological measurement
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
Mitchell C
(2007)
Advances in Earth Science - From Earthquakes to Global Warming
Paul Prikryl
(2013)
An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite
in Annals of Geophysics
Katamzi Z
(2012)
Analysis of diurnal double maxima observed above Italy during 1975-1991
in Journal of Atmospheric and Solar-Terrestrial Physics
Alfonsi L
(2018)
Analysis of the Regional Ionosphere at Low Latitudes in Support of the Biomass ESA Mission
in IEEE Transactions on Geoscience and Remote Sensing
Chartier A
(2018)
Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm
in Journal of Geophysical Research: Space Physics
Alfonsi L
(2011)
Bipolar climatology of GPS ionospheric scintillation at solar minimum
in Radio Science
Forte B
(2013)
Comparison of temporal fluctuations in the total electron content estimates from EISCAT and GPS along the same line of sight
in Annales Geophysicae
Burston R
(2009)
Correlation between scintillation indices and gradient drift wave amplitudes in the northern polar ionosphere
in Journal of Geophysical Research: Space Physics
Alfonsi L
(2009)
Corrigendum to: "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
Yin P
(2011)
Demonstration of the use of the Doppler Orbitography and Radio positioning Integrated by Satellite (DORIS) measurements to validate GPS ionospheric imaging
in Advances in Space Research
Materassi M
(2009)
Detrend effect on the scalograms of GPS power scintillation
in Advances in Space Research
De Franceschi G
(2008)
Dynamics of high-latitude patches and associated small-scale irregularities during the October and November 2003 storms
in Journal of Atmospheric and Solar-Terrestrial Physics
Soleimani M
(2009)
FOUR-DIMENSIONAL ELECTRICAL CAPACITANCE TOMOGRAPHY IMAGING USING EXPERIMENTAL DATA
in Progress In Electromagnetics Research
Bust G
(2007)
Four-dimensional GPS imaging of space weather storms
in Space Weather
Benton C
(2013)
Further observations of GPS satellite oscillator anomalies mimicking ionospheric phase scintillation
in GPS Solutions
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