Monthly mean relative sea level (cm) Station: Bolvanskii Nos (im. Fedorova) Sea: Kara Sea Coordinates: 7027N 05905E Period: 1951-1993 Comments: 1990-1993 are based on operative data 1951 0 -15 -20 -13 -8 -7 0 -6 2 15 9 19 -2 1952 -14 -19 -10 -12 -4 -1 0 0 0 -2 -8 -7 -7 1953 0 -15 0 -19 -9 -11 0 -7 13 17 9 33 0 1954 17 -10 -3 -15 -25 -5 -4 0 0 18 10 2 -1 1955 15 -20 -26 -16 -16 0 4 11 1 19 11 0 -1 1956 -10 -30 -4 -26 -10 -3 -9 -8 3 7 -4 3 -8 1957 15 -12 -13 -10 -9 3 -7 -2 0 3 -5 0 -3 1958 -17 -23 -21 -16 -26 -14 0 4 19 12 28 4 -4 1959 -17 14 17 -15 -3 1 1 2 17 7 7 0 2 1960 -9 -12 -12 -16 -21 -1 -16 -11 -2 23 20 15 -4 1961 -7 3 6 -7 -13 -2 -9 -10 14 10 6 4 0 1962 1 -4 -22 -14 -17 4 -5 0 3 21 11 12 -1 1963 11 0 -11 -18 -17 -6 2 -12 0 17 5 5 -2 1964 17 -2 -10 -28 -13 7 -3 -6 10 15 20 10 1 1965 -1 -14 -10 -11 -7 3 2 -3 5 17 -4 -5 -2 1966 7 -19 -20 -30 -9 -1 4 8 15 0 18 -11 -3 1967 3 7 6 0 -7 5 0 -5 11 20 2 5 4 1968 -8 1 7 -10 -10 3 3 5 -1 10 4 0 0 1969 -25 -23 -8 -15 -20 -4 2 0 2 12 13 6 -5 1970 0 -13 -31 -18 -13 -1 -2 -7 -4 0 3 14 -6 1971 16 -19 -11 -14 -8 -8 -4 8 10 10 15 9 0 1972 2 6 -10 -16 -20 -14 -2 1 0 14 -10 11 -3 1973 11 2 0 -21 -12 7 -6 1 5 7 13 0 0 1974 5 -23 11 -10 -25 -10 -6 -5 5 -10 -8 10 -5 1975 16 8 -1 -18 -36 -18 0 4 22 24 0 1 0 1976 -8 -1 -23 -4 -3 4 -6 5 10 5 14 -40 -4 1977 -14 -31 -23 -29 -31 -8 -11 -13 6 -2 -8 18 -12 1978 9 -6 -4 -16 -18 -17 -14 -3 -2 11 34 13 -1 1979 -8 -14 -5 -30 -21 -7 -8 3 9 11 15 22 -3 1980 10 10 -9 -24 -15 -12 -10 -9 -2 9 4 -8 -5 1981 11 3 -14 -6 -16 -8 -12 11 -3 -8 11 8 -2 1982 0 5 -9 -12 -16 -1 -4 4 14 -4 24 23 2 1983 19 7 -6 -23 -17 -6 5 18 8 16 38 21 7 1984 8 8 -2 -2 -13 -11 -4 1 0 -7 -2 11 -1 1985 -2 -16 -14 -15 -17 -9 -5 4 12 31 15 2 -1 1986 -6 -3 8 -16 -11 6 8 -9 14 22 23 15 4 1987 7 -3 -17 -16 -13 -12 8 2 3 23 20 27 2 1988 23 -22 -15 -9 -11 3 -2 3 16 35 35 37 8 1989 22 23 -1 -19 0 8 19 22 26 28 26 38 16 1990 2 15 18 0 17 3 7 14 8 31 25 27 14 1991 25 6 -10 -2 -1 5 15 16 29 30 25 26 14 1992 40 22 15 -10 3 9 14 4 0 20 14 38 14 1993 45 25 9 -4 -6 1 -1 0 7 16 999 999 11