Table 1 Analysis period before and during the occurrence of each SSE
SSE | Number of observation stations | Analysis period prior to the SSE (years) | Analysis period during the SSE occurrence (years) |
|---|---|---|---|
Tokai L-SSE | 146 | 1 July 2005–31 December 2012 (7.5) | 1 January 2013–5 February 2016 (3.1) |
Boso-Oki S-SSE | 24 | 10 January 2014–4 June 2018 (4.4) | 5 June 2018–20 June 2018 (0.04) |
Central Shikoku L-SSE | 87 | 1 January 2014–31 December 2018 (5.0) | 1 January 2019–31 December 2021 (3.0) |