Circulation Index

Correlation coefficient

West Pacific Subtropical High Ridge Point

0.357

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North American Subtropical High Intensity Index (110˚W - 60˚W)

−0.324

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North American Atlantic Subtropical High Intensity Index (110˚W - 20˚W)

−0.335

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Indian - Burmese tank (15˚N - 20˚N, 80˚E - 100˚E)

−0.340

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North Africa Atlantic North American Subtropical High Intensity Index (110˚W - 60˚E)

−0.341

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Northern Hemisphere Subtropical High Intensity Index (5˚E - 360˚)

−0.352

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South China Sea Subtropical High Area Index (100˚E - 120˚E)

−0.369

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South China Sea Subtropical High Intensity Index (100˚E - 120˚E)

−0.405

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