Phase scintillation in the high-latitude ionosphere, response to geomagnetic activity
Abstract
International Civil Aviation Organization (ICAO) considers ionosphere scintillation as a natural hazard and requires information about scintillation activity on a regular basis to manage safe operation of aircraft. Aim of this study is to develop a forecast model of phase scintillation in high latitudes, which will be implemented into space weather advisories for ICAO service. For this purpose, scintillation data in Canadian high latitudes provided by Canadian High Ionospheric Network (www.chain.physics.unb.ca) were studied together with the geomagnetic activity recorded by the Canadian geomagnetic observatories. Data set covers 2013-2018 years and includes several strong magnetic storms. Response of the phase scintillation to geomagnetic activity, its duration and intensity, was studied for different locations across Canada and for different levels of geomagnetic activity. Relationship between geomagnetic and scintillation activity was compared for different magnetic storms to reveal its spatial and temporal stability. This study provides as well a possible approach to develop a benchmark for extreme scintillation activity.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMNH41D0944N
- Keywords:
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- 4305 Space weather;
- NATURAL HAZARDS;
- 4313 Extreme events;
- NATURAL HAZARDS;
- 7914 Engineering for hazard mitigation;
- SPACE WEATHER;
- 7964 Policy;
- SPACE WEATHER