MEKANISME

EL NINO – LA NINA

The Basic Mechanism of General Circulation

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Sumber NOAA

Sumber NOAA

Sumber NOAA

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El Nino Intensity IndexWeak : I ≤ 14.9 (1963/1964, 1965/1966, 1968/1970)Moderate : 15 ≥ I ≤ 19.9 (1957/1958, 2002/2003)Strong : 20 ≥ I ≤ 24.9 (1972/1973, 1986/1987, 1991/1992)Very Strong : I ≥ 25 (1982/1983, 1997/1998)

Sumber: NOAA

Sumber: NOAA

Grafik intensitas vs kekeringan

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90%

0 5 10 15 20 25

Intensitas (ASST maks. dibagi durasi)

Kekeri

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Tahun

Kekeringan

BMG Durasi Index A Index B

1957 - 1958 19 10,13 14,83

1963 - 1964 92% 10 12,25 7,14

1965 - 1966 96% 17 13,23 13,87

1968 - 1970 91% 23 15,13 14,21

1972 - 1973 98% 12 16,73 16,33

1982 - 1983 100% 19 14,62 23,8

1986 - 1987 91% 22 8,27 23,66

1991 - 1992 98% 31 6,22 21,05

1997 - 1998 94% 14 19,67 25

Sumber Suara Pembaruan

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