Additional data for "Record-Breaking Precipitation in Indonesia's Capital of Jakarta in Early January 2020 Linked to the Northerly Surge, Equatorial Waves, and MJO" containing Cross Equatorial Northerly Surge record data

Data containing the record of the daily amplitude of active Cross Equatorial Northerly Surge events on December, January, and February of 1979 to 2021. This amplitude was calculated based on the ERA5 reanalysis dataset. The rules for recording an event with the next event separated by a minimum of 1 day interval of amplitude below the threeshold.