150fad2e-978b-46b4-a74e-a593d6e9dde0 urn:uuid en UTF-8 nonGeographicDataset nonGeographicDataset 2025-11-11T07:34:36 creation ISO 19115 2016 The Southern Oscillation Index (SOI) - Daily 150fad2e-978b-46b4-a74e-a593d6e9dde0 Daily SOI and barometric pressure observations at Tahiti and Darwin, calculated using 1887-1989 and 1933-1992 base periods. GovHack 2019 climate environment land science Latest SOI 1887 1989 Base documentDigital Text file of the latest SOI values calculated using the 1887-1989 base period. The file provides the daily SOI value for the previous day, mean daily SOI values for the previous 30 and 90 day periods, and the mean monthly SOI values for the previous three months. TXT Daily SOI 1887 1989 Base documentDigital Text file of daily SOI values since 1991 calculated using the 1887-1989 base period. TXT Daily SOI 1933 1992 Base documentDigital Text file of daily SOI values since 1999 calculated using the 1933-1992 base period. TXT Daily SOI 1887 1989 Base documentDigital CSV file of daily SOI values since 1991 calculated using the 1887-1989 base period. CSV Daily SOI 1933 1992 Base documentDigital CSV file of daily SOI values since 1999 calculated using the 1933-1992 base period. CSV