Title: CESM2 S2S Hindcasts Description: This dataset contains subseasonal-to-seasonal (S2S) hindcasts with CESM2 that were carried out as a community project and with community analysis in mind. These forecasts consist of 45-day long runs initialized every Monday from 1999 to 2019, 11 ensemble members. Output includes atmospheric, land, ocean and sea-ice variables (many requested by the community). These simulations are in support of the work done by the newly formed Earth System Predictability Working Group within CESM. Metadata URL: https://www.earthsystemgrid.org/dataset/id/ab0cfd5e-ef5e-4624-9863-6e1b0e9d0398.html