The National Oceanography Centre publishes the deciding data in the moc_transports dataset of the RAPID-MOCHA-WBTS 26 degrees north AMOC observing program, and the value used is the moc_mar_hc10 series of AMOC strength at 26.5 degrees north, in Sverdrups. The annual mean for a calendar year is the simple average of all valid moc_mar_hc10 observations dated in that year, excluding entries the RAPID documentation marks as missing or invalid, and partial calendar years do not count until enough data for that year is published to compute a representative annual average. The outcome is Yes if the annual mean for any calendar year through 2030 is below the value specified in the market question and No otherwise. Revisions published before resolution are used and later ones are disregarded, and the outcome may be determined early once a qualifying year is published, and otherwise becomes final when the dataset is updated to include data for every calendar year through 2030. If the dataset update is delayed, resolution waits until it is published.

The National Oceanography Centre publishes the deciding data in the moc_transports dataset of the RAPID-MOCHA-WBTS 26 degrees north AMOC observing program, and the value used is the moc_mar_hc10 series of AMOC strength at 26.5 degrees north, in Sverdrups. The annual mean for a calendar year is the simple average of all valid moc_mar_hc10 observations dated in that year, excluding entries the RAPID documentation marks as missing or invalid, and partial calendar years do not count until enough data for that year is published to compute a representative annual average. The outcome is Yes if the annual mean for any calendar year through 2030 is below the value specified in the market question and No otherwise. Revisions published before resolution are used and later ones are disregarded, and the outcome may be determined early once a qualifying year is published, and otherwise becomes final when the dataset is updated to include data for every calendar year through 2030. If the dataset update is delayed, resolution waits until it is published.