Accepted author manuscript
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper
Research output: Contribution to conference - Without ISBN/ISSN › Conference paper
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TY - CONF
T1 - Observations of HF radio propagation at high latitudes and predictions using data-driven simulations
AU - Warrington, Michael
AU - Stocker, A. J.
AU - Hallam, Jonathan
AU - Siddle, D.
AU - Al-Behadili, H.A.H.
AU - Zaalov, Nikolay
AU - Honary, Farideh
AU - Rogers, Neil Christopher
AU - Boteler, D.H.
AU - Danskin, Donald W.
PY - 2017/5/9
Y1 - 2017/5/9
N2 - Researchers at the University of Leicester, Lancaster University and St Petersburg State University have developed various models that can be employed in HF radio propagation predictions. Signal coverage predictions make use of numerical ray tracing to estimate the ray paths through a modelionosphere that includes various ionospheric features prevalent at high latitudes (in particular patches, arcs, ionisation tongue, auroral zone irregularities and the mid-latitude trough). Modelling of D-region absorption is also included. GOES satellites provide information on X-ray flux (causing shortwave fadeout during solar flares) and precipitating energetic proton flux which correlates strongly with Polar Cap Absorption (PCA). Solar wind and interplanetary magnetic field measurements from the ACE or DSCOVR spacecraft provide geomagnetic index estimates used to model the location of both auroral absorption and the proton rigidity cutoff boundary that definesthe latitudinal extent of PCA during solar proton events (SPE). This paper presents measurements and associated modelling for a 9 day period.
AB - Researchers at the University of Leicester, Lancaster University and St Petersburg State University have developed various models that can be employed in HF radio propagation predictions. Signal coverage predictions make use of numerical ray tracing to estimate the ray paths through a modelionosphere that includes various ionospheric features prevalent at high latitudes (in particular patches, arcs, ionisation tongue, auroral zone irregularities and the mid-latitude trough). Modelling of D-region absorption is also included. GOES satellites provide information on X-ray flux (causing shortwave fadeout during solar flares) and precipitating energetic proton flux which correlates strongly with Polar Cap Absorption (PCA). Solar wind and interplanetary magnetic field measurements from the ACE or DSCOVR spacecraft provide geomagnetic index estimates used to model the location of both auroral absorption and the proton rigidity cutoff boundary that definesthe latitudinal extent of PCA during solar proton events (SPE). This paper presents measurements and associated modelling for a 9 day period.
KW - Ionosphere
KW - Space weather
KW - HF radio propagation
M3 - Conference paper
SP - 1
EP - 7
T2 - 15th International Ionospheric Effects Symposium
Y2 - 9 May 2017 through 11 May 2017
ER -