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Multivariate Statistical Analysis of Indiana Hydrologic Data

Multivariate Statistical Analysis of Indiana Hydrologic Data

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Joint Deficit Index (III)<br />

• Comparison between 1-Mn, 12-Mn, and joint SPI<br />

– 12-Mn SPI changes slowly, weak in reflecting emerging drought<br />

– 1-Mn SPI changes rapidly, weak in reflecting accumulative deficit<br />

– Joint SPI reflects joint deficit

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