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GEM RBW challenge criteria Choosing challenge storms from CRESS era, due to availability of equatorial observations Challenge interval: spans at least.

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Presentation on theme: "GEM RBW challenge criteria Choosing challenge storms from CRESS era, due to availability of equatorial observations Challenge interval: spans at least."— Presentation transcript:

1 GEM RBW challenge criteria Choosing challenge storms from CRESS era, due to availability of equatorial observations Challenge interval: spans at least 6 months, contains 5 or more distinct storms Chose period following CRESS data dropout, Feb 1, 1991 to July 31, 1991 Training interval: spans at least 2 months; independent of challenge interval Chose 2 months prior to data dropout: August 15, 1990 to October 15,1990 Several storms in this interval are discussed in Iles et al. [ JGR, 2006, doi:10.1029/2005JA011206 ] Choosing M, K pairs based on those used in Iles et al., plus canonical “1MeV at Geo” 1860 MeV/G (1MeV at Geo), K=0 (equatorial) and K=0.1 (off-equatorial) 750 MeV/G (~750keV at Geo), K=0 (equatorial) and K=0.1 (off-equatorial) 550 MeV/G (~600keV at Geo), K=0 S. Elkington, 12/11/2010

2 Training interval Training interval encompasses August 15, 1990 to October 15,1990, and includes several storms discussed in Iles et al. [JGR, 2006, doi:10.1029/2005JA011206] August 26-30, 1990 (clear storm, preceded by another; Dst-min ~ -100nT) September 11-16, 1990 (“series of prolonged substorms”, minimal Dst response) October 9-15, 1990 (clear storm, Dst-min ~ -120 nT) S. Elkington, 12/11/2010

3 Challenge interval, Storm 1: Feb 1-5, 1991 Dst-min ~ -79 nT Extended recovery phase S. Elkington, 12/11/2010

4 Challenge interval, Storm 2: Mar 24, 1991 Dst-min ~ -298 nT Superstorm; pronounced SSC JB: “We have to do this badboy” S. Elkington, 12/11/2010

5 Challenge interval, Storm 3: May 17, 1991 Dst-min ~ -105 nT “classic” storm S. Elkington, 12/11/2010

6 Challenge interval, Storm 4: Jun 5-17, 1991 Dst-min ~ -223 nT Multiple subsequent main phases S. Elkington, 12/11/2010

7 Challenge interval, Storm 5: July 9, 1991 Dst-min ~ -194 nT Another “classic” storm, first of 2 that month S. Elkington, 12/11/2010

8 Extra-credit bonus interval: Feb 24, 1991 Almost no Dst response Clear particle injection in data What’s going on here? S. Elkington, 12/11/2010

9 GEM RBW challenge interval Training interval: August 15, 1990 to October 15, 1990 Iles et al. [JGR, 2006, doi:10.1029/2005JA011206] August 26-30, 1990 (clear storm, preceded by another; Dst-min ~ -100nT) September 11-16, 1990 (“series of prolonged substorms”, minimal Dst response) October 9-15, 1990 (clear storm, Dst-min ~ -120 nT) Challenge interval: February 1, 1991 to July 31, 1991 February 1, 1991 (Dst-min -79, extended recovery) March 24, 1991 (superstorm interval) May 17, 1991 (Dst-min -105, basic storm) Jun 5, 1991 (multi-dip storm) July 9, 1991 (Dst-min -194, basic storm) February 24, 1991 (extra special bonus non-storm electron injection) Challenge M, K pairs 1860 MeV/G (1MeV at Geo): K=0 (equatorial) and K=0.1 (off-equatorial) 750 MeV/G (~750keV at Geo): K=0 (equatorial) and K=0.1 (off-equatorial) 550 MeV/G (~600keV at Geo): K=0 Re(G) 1/2 S. Elkington, 12/11/2010

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