Fig. 1. El Niño and La Niña years, and intensities based on Oceanic Niño Index (ONI). Events are defined as 5 consecutive overlapping 3-month periods at or above the +0.5℃ anomaly for warm (El Niño) events, and at or below the -0.5℃ anomaly for cold (La Niña) events.
Fig. 2. Yearly changes of nationally averaged production of spring kimchi cabbage (a) downloaded from the Korean Information Service and (b) after removing the residuals according to the increase tendency of production from 1981 through 2016.
Table 1. Averaged production of spring kimchi cabbage and regression analysis of changes of the production of spring kimchi cabbage from 1981 through 2016 according to administrative districts
Table 2. Comparison of the production of spring kimchi cabbage between El Niño years and non El Niño years
Table 3. Comparison of the production of spring kimchi cabbage between El Niño start years, El Niño end years, and non El Niño years
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