720,000-year temperatures data reconstructed from isotope data of Dome Fuji ice core (Uemura et al., 2018). The raw data are available at the NOAA’s NCEI, which is formerly the National Climate Data Center (NCDC) archive (https://www.ncdc.noaa.gov/paleo/study/23371).
-Paper download, Uemura et al., Natue Communications, 2018 (OPEN access)
Resampled (smoothed) data can be found below.