They also calculated impact dose injury risk parameters common to laboratory and on-field traumatic neuromechanics: linear acceleration, angular acceleration, angular velocity, Gadd Severity Index, diffuse axonal injury, acute subdural hematoma, and brain contusion.

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Preliminary data computed from the Palmer Drought Severity Index shows that 54.6 percent of the contiguous 48 states was in drought at the end of June, the highest percentage since December 1956, and the sixth-highest peak percentage on record.

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To explore this they used an index of weather severity called the North Atlantic oscillation.

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Not a fan of debt, Baron kept plowing his profits back into software enhancements that could garner monthly subscriptions--like the Baron Tornado Index, which ranks the severity and direction of storms on a scale of one to ten.

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Its report grades cities using, in part, the EPA's color-coded Air Quality Index, as well as its own weighting system that ranks the severity of pollution on a daily basis.

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