Open Access
Agora – Strategic or programmatic article

Table 2

The value of the merit function obtained for the analysis of several GLEs (main phase of the event) as a function of the number of the used NM stations. Columns 1–2 correspond to the number and date of the GLE, while columns 3–5 correspond to and number of the used stations (in the brackets) for extended NM network, actual NM network used for the analysis and the reduced NM network, respectively. N.A. depicts the case when the SEP spectra cannot be unfolded. The details for the analysis of the presented GLEs are given in Mishev et al. (2014), Kocharov et al. (2017), Mishev et al. (2018b), Mishev & Usoskin (2016a) as well as in this work.

GLE # Date Extended NM network Actual NM network Reduced nNM etwork
GLE # 5 23.02.1956 1.6(37) 2.5(15) N.A.(10)
GLE # 59 14.07.2000 4.1(39) 4.8(30) 19(20)
GLE # 67 02.11.2003 4.5(39) 7.1(34) 38(21)
GLE # 69 20.01.2005 3.0(38) 3.5(33) 35(25)
GLE # 70 13.12.2006 3.2(38) 4.2(32) 43(22)
GLE # 71 17.05.2012 5.0(34) 7.1(24) N.A.(19)
GLE # 72 10.09.2017 5.2(31) 6.1(23) 33(18)

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.