Correlation of sea-surface temperature in Ross Sea, Weddell Sea and the sea off Peru for the ice analysis

Following the note by the Working Group in paragraph 4.21 in WG-SAM-17 report on the ice concentration analysis by Namba et al. (WG-SAM-17/10), the further analyses for the ice concentration was conducted to investigate correlations between sea-ice coverage and wider global weather phenomena such as El Niño/El Niño Southern Oscillation or rising temperatures/increased variability in the sea surface temperature (SST) anomaly (variance from average) of ERDDAP of NOAA.