This data set contains post-processed ensemble simulation output from the Norwegian Earth System Model version 1 (NorESM1-ME). CNTRL is a fully coupled 20th century historical simulation with transient external forcing. TAUOCN (TAUOCN-PAC_ext) is similar to CNTRL except that the Indo-Pacific Ocean is constrained by daily momentum flux anomalies from reanalysis and otherwise fully coupled. See Svendsen et al. (2018; https://www.nature.com/articles/s41558-018-0247-1) and Svendsen et al. (2021; https://link.springer.com/article/10.1007/s00382-021-05868-9) for more details.