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Hydroxyl response in the lower polar stratosphere during the 2005 Jan 20 Ground Level Enhancement Astronomical Society of Australia Annual Science Meeting 2010, Hobart, 5-8 July, 2010 (Ref: 14167)
Category 3: Poster

We evaluate atmospheric ionization during the Ground Level Enhancement (GLE) of 2005 Jan 20 using the continuous slowing down (CSD) energy loss approximation [1,2]. The top-of-atmosphere particle flux is derived using satellite measurements (for particle energies below 500MeV)…

Effects of atmospheric ionization during the ground level enhancement of 2005 Jan 20 6th Annual Meeting, Asia Oceania Geosciences Society, Singapore, 11-15 August 2009, 2009 (Ref: 14077)
Category 3: Abstract

We evaluate atmospheric ionization during the Ground Level Enhancement (GLE) of 2005 Jan 20 using two methods: a Monte-Carlo (MC) air-shower simulation [1] and a continuous slowing down (CSD) energy loss approximation [2,3]. For both methods…

Atmospheric chemistry effects of the 20 January 2005 solar proton event Advances in Geosciences, 2009 (Ref: 13962)
Category 1: Peer-reviewed literature

Atmospheric ionization during Solar Proton Events (SPE) has traditionally … been modeled using top-of-atmosphere (TOA) particle fluxes measured by near- … Earth spacecraft, and as a consequence the modeling has been restricted to … particle energies below ¡­ 500 MeV. However…

An improved model for relativistic solar proton acceleration applied to the 2005 January 20 and earlier events The Astrophysical Journal, 2008 (Ref: 13466)
Category 1: Peer-reviewed literature

This paper presents results on modeling the ground-level response of the higher energy protons for the 2005 … January 20 ground-level enhancement (GLE). This event, known as GLE 69, produced the highest intensity of relativistic … solar particles since the famous event on 1956 February 23.

Atmospheric ionization during large solar proton events 4th Annual Meeting, Asia Oceania Geosciences Society, Bangkok, Thailand 31 July to 4 August 2007, 2007 (Ref: 13049)
Category 3: Poster

Atmospheric ionization by solar protons has traditionally been … modeled using top-of-atmosphere (TOA) particle fluxes measured … by near-Earth spacecraft, and as a consequence have been … restricted to particle energies below ~500 MeV. However…

Relativistic proton production during the 2001 April 15 solar event The Astrophysical Journal, 2007 (Ref: 13063)
Category 1: Peer-reviewed literature

Extreme solar processes at the Sun on 2001April 15 accelerated protons to relativistic energies, resulting in a groundlevel … enhancement in cosmic rays observed at Earth. The GOES 10 spacecraft measured the proton flux directly…

Relativistic proton production during recent solar events 4th Annual Meeting, Asia Oceania Geosciences Society, Bangkok, Thailand, 31 July - 4 August 2007, 2007 (Ref: 13051)
Category 3: Abstract

On 20 January 2005 the sun produced the highest intensity of relativistic … solar particles observed at Earth in 50 years. The sea-level increase at Terre Adelie … (~46 X in 1 minute data) was slightly less than in 1956 (Leeds ~47 X in 15 minute … data).

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