% 1948 2012 1948 -0.17 -0.18 0.26 -0.03 -0.46 -0.20 -1.60 -2.42 -1.81 -2.02 -1.78 -0.28 1949 -0.13 -0.13 -0.29 0.53 -0.66 -0.60 -1.04 -2.09 -0.81 -1.77 -1.03 -0.32 1950 -0.17 -0.30 -0.96 -1.93 -2.27 -2.23 -2.12 -2.62 -0.52 -2.14 -0.82 -0.32 1951 -0.17 -0.30 -0.93 -0.70 -0.93 -0.56 -0.07 2.23 1.50 1.55 1.09 0.01 1952 -0.07 -0.26 -0.31 0.35 0.24 0.85 -0.16 2.42 2.44 1.73 1.05 -0.05 1953 -0.17 -0.12 0.57 1.58 0.09 0.48 0.25 1.56 1.30 0.47 1.21 -0.10 1954 -0.13 -0.29 -0.77 -1.49 -1.29 -1.71 -1.74 -0.79 -0.70 -3.83 -1.95 -0.25 1955 -0.17 -0.30 -0.87 -2.21 -1.76 -1.89 -1.96 -0.93 -0.65 -0.33 0.62 -0.32 1956 -0.17 -0.30 -0.61 -1.43 -1.53 -2.49 -1.86 -1.50 -1.97 -1.05 -1.65 -0.23 1957 -0.17 -0.26 0.12 0.19 0.64 1.35 1.63 2.42 3.15 2.64 1.60 0.34 1958 0.12 0.19 1.82 1.54 2.42 5.75 2.94 3.55 2.82 1.76 1.18 0.17 1959 0.19 0.38 0.98 0.83 0.16 -0.07 1.18 -0.48 1.19 0.21 0.23 -0.16 1960 -0.16 -0.21 -0.63 -0.79 1.13 0.20 0.91 1.45 1.40 1.28 0.84 -0.01 1961 -0.02 0.04 -0.39 -0.00 -0.25 -0.52 -0.91 0.34 -0.18 -0.39 -0.23 -0.32 1962 -0.17 -0.19 -0.54 -1.54 -1.39 -0.26 0.92 2.50 1.44 1.47 1.15 -0.23 1963 -0.17 -0.30 -0.09 0.42 -0.01 0.45 -0.27 2.49 2.04 1.78 1.92 -0.09 1964 -0.08 -0.14 0.03 -0.45 -1.13 -0.85 -0.46 -1.09 -1.03 -1.43 -1.37 -0.32 1965 -0.17 -0.30 -0.64 0.18 0.37 -1.63 -0.62 -1.12 -0.57 0.68 0.68 0.32 1966 0.16 0.06 0.31 0.30 -0.86 -1.19 -0.22 0.44 0.76 0.45 1.14 -0.32 1967 -0.17 -0.27 -0.78 -1.11 -1.47 -1.93 -1.98 -2.72 -1.34 -0.33 -0.23 -0.29 1968 -0.17 -0.30 -0.96 -2.59 -2.47 -2.24 -0.93 -0.01 1.24 0.64 0.77 -0.14 1969 -0.09 -0.01 2.04 2.09 4.28 4.30 4.67 1.95 2.49 1.30 2.01 -0.19 1970 -0.17 -0.29 -0.73 -0.42 -1.11 -1.08 -1.25 -0.55 -0.24 -0.13 -0.22 -0.32 1971 -0.17 -0.30 -0.96 -2.57 -2.32 -1.95 -1.54 -2.97 -3.97 -3.38 -1.90 -0.32 1972 -0.13 -0.30 -0.57 0.33 0.17 -1.40 -0.64 -1.47 -1.21 1.55 0.87 0.63 1973 0.14 0.05 1.03 0.20 -0.25 -1.07 -0.57 -1.11 -0.72 -1.92 -1.47 -0.29 1974 -0.17 -0.30 -0.83 -0.78 -1.52 -1.70 -2.79 -3.16 -4.35 -3.61 -1.85 -0.17 1975 -0.17 -0.30 -0.34 -0.22 -1.21 -1.21 -2.55 -3.60 -3.54 -3.14 -2.11 -0.32 1976 -0.17 -0.30 -0.87 -1.11 -1.04 -1.76 -2.34 -2.23 -3.42 0.21 0.03 -0.25 1977 -0.14 -0.16 -0.58 -1.16 -0.94 -1.62 -0.62 -1.98 -1.33 -0.66 -0.50 0.01 1978 -0.16 -0.22 -0.63 -0.76 -1.03 -0.56 -1.31 -2.03 -2.55 -1.54 -1.31 -0.10 1979 -0.17 -0.23 -0.73 -0.02 -0.52 -0.81 -0.56 -0.92 -1.81 0.41 -0.37 -0.21 1980 -0.13 -0.18 -0.59 -0.13 0.95 1.21 -0.01 0.34 1.26 0.22 0.20 -0.16 1981 -0.17 -0.30 -0.76 -1.21 -0.77 -0.80 -0.76 -0.47 0.83 -0.60 0.13 -0.14 1982 -0.17 -0.14 -0.37 0.67 0.46 -0.14 -0.46 -1.99 -2.16 -2.27 -1.31 0.45 1983 1.60 3.17 4.47 3.73 4.13 4.82 3.33 1.88 0.16 0.05 -0.08 0.27 1984 -0.17 -0.30 -0.52 -0.04 -0.80 -2.62 -3.09 -4.25 -6.13 -5.28 -2.02 -0.32 1985 -0.17 -0.30 -0.91 -2.40 -1.90 -1.59 -2.28 -2.76 -3.15 -2.93 -1.74 -0.25 1986 -0.17 -0.30 -0.77 -1.79 -0.98 -1.99 -1.30 -2.28 -1.09 -1.99 -1.44 0.02 1987 -0.03 0.18 1.76 2.44 2.70 3.12 3.98 5.14 5.41 4.18 3.48 0.70 1988 0.31 -0.01 0.77 -0.04 0.15 -0.30 -0.39 -0.98 -1.86 -2.31 -1.69 -0.20 1989 -0.17 -0.30 -0.91 -1.90 -1.29 -1.84 -1.33 -0.96 -2.10 -0.80 -0.50 0.03 1990 -0.13 -0.12 -0.31 0.66 0.49 0.87 0.62 0.44 2.84 2.67 0.73 0.03 1991 -0.03 -0.03 0.44 0.96 0.72 1.49 0.89 -0.46 -0.69 -1.36 -1.78 -0.29 1992 -0.04 0.10 0.55 2.72 1.98 0.96 0.74 -1.30 -0.53 0.54 -0.42 0.08 1993 -0.14 0.03 0.21 2.19 2.13 0.94 0.47 -0.42 0.19 0.56 -0.54 0.11 1994 -0.13 -0.22 -0.26 0.54 0.22 0.94 0.94 -0.59 0.25 0.79 -0.29 0.27 1995 0.04 0.08 -0.10 0.48 0.16 1.58 2.71 3.02 1.63 1.96 0.79 -0.03 1996 -0.17 -0.25 -0.41 -0.51 -0.27 -0.23 -1.23 -2.14 0.88 -0.37 -1.63 -0.14 1997 -0.17 -0.21 0.19 0.67 2.16 3.77 4.75 5.05 6.13 6.07 4.73 3.32 1998 3.57 4.93 5.43 4.80 4.46 5.33 6.02 5.82 3.35 3.32 1.56 -0.04 1999 -0.17 -0.23 -0.24 -0.50 -0.83 0.71 -0.08 3.09 1.45 0.21 -0.08 -0.21 2000 -0.17 -0.30 -0.80 -0.04 -0.31 -1.11 -0.66 1.09 1.16 0.96 0.65 0.03 2001 -0.17 -0.24 -0.44 0.12 -0.68 0.51 0.57 2.95 3.09 2.07 1.89 -0.01 2002 -0.13 -0.14 0.06 0.81 0.47 -0.36 0.71 0.68 1.77 3.03 1.15 0.01 2003 -0.03 0.02 1.21 0.46 -0.09 1.43 1.99 4.58 3.74 4.71 2.91 0.00 2004 -0.14 -0.19 -0.34 0.63 0.31 1.14 2.18 4.44 3.67 3.16 2.70 0.07 2005 -0.06 -0.22 0.36 1.40 3.11 4.42 5.84 4.90 4.40 2.45 1.48 -0.25 2006 -0.17 -0.30 -0.52 -0.07 0.45 0.95 2.14 4.29 4.92 5.22 3.18 0.06 2007 -0.04 0.00 -0.29 0.45 0.04 0.19 1.63 1.52 1.63 1.40 0.47 -0.16 2008 -0.17 -0.28 -0.53 0.17 -0.31 -0.02 0.99 3.42 2.70 2.62 1.84 -0.30 2009 -0.17 -0.30 -0.76 -0.11 0.25 1.85 3.80 4.09 3.77 4.87 3.17 0.79 2010 -0.00 0.64 1.85 4.04 6.14 7.32 5.94 4.95 3.24 2.94 2.27 0.10 2011 -0.17 -0.28 -0.85 -0.75 0.00 2.13 2.64 3.53 1.42 1.65 1.67 -0.26 2012 -0.16 -0.14 -0.50 0.44 0.30 2.16 -99.99 -99.99 -99.99 -99.99 -99.99 -99.99 % -99.99 % WHWPa % Area anomaly scaled by 10e6 km**2 % Monthly anomaly of the ocean surface area Ocean region >28.5C % in the Atlantic and eastern North Pacific. % Climatology is 1951-2000. Wang, C., and D.B. Enfield, % 2001 : The tropical Western Hemisphere warm pool, % Geophys. Res. Lett., 28, 1635-1638.