CESM1 1800year preindustrial run SST anomaly

The original data is downloded from https://www.earthsystemgrid.org/dataset/ucar.cgd.ccsm4.cesmLE.ocn.proc.monthly_ave.SST/file.html with login. It is 1800-year monthly sea surface temperature data from Community Earth System Model 1 (CESM1) preindustrial control run (Kay et al., 2015), with fixed radiative forcing at the level of year 1850. We interpolate the original data onto 2 latitude × 5 longitude grid. We calculate annual-mean anomalies and detrend the data. The mat file can be read by Matlab, including "SST_cesm1_pi" for annual-mean sea surface temperature anomalies, "loncesm1_pi" for longitude, "latcesm1_pi" for latitude, and "timelim_cesm1_pi" for the time length.
Kay, J. E., Deser, C., Phillips, A., Mai, A., Hannay, C., Strand, G., et al. (2015). The Community Earth System Model (CESM) large ensemble project: A community resource for studying climate change in the presence of internal climate variability. Bulletin of the American Meteorological Society, 96(8), 1333–1349. https://doi.org/10.1175/BAMS-D-13-00255.1