APEX Autonomous Drifting Profiler, or Argo float, 2010
2010
2010
1960-2007
1870
1905
1986
1954
1954
1954
1954
circa 1960
1930
1933
1927
1902
1948-1960
1980-1990
1960-1970
1960-1970
1997
1997
1942
1870-1900
1870-1900
1918
2010
1990-1992
1930-1950
1970-1977
circa 1950
1811 (original)
1818
1976-1977
1976-1977
1818-1876