Estimating Bounds on Extreme Precipitation Events A Brief Assessment (1994) / Chapter Skim
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Executive Summary
Executive Summary
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One assumption is that most extreme precipitation events could have happened at a slightly different location in the same region; this leads to a technique called storm transposition, which increases the PMP values for areas near an observed extreme event. It is also considered possible that a given extreme storm could have happened at a time of greater absolute humidity; this leads to a technique 1
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The Committee recommends increased research efforts for numerical modeling of extreme storms in mountainous regions. Measuring rainfall is a difficult task owing to the significant variations on very small spatial scales (a few kilometers)
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The Committee recommends that the NWS work to establish the accuracy of WSR-88D rainfall estimates, especially for heavy rainfall events, and develop formal plans for integrating WSR-88D data into a PMP storm catalog. Adding polarization diversity measurement capabilities to the WSR-88D would provide significant potential for improving rainfall rate estimates, especially for heavy rainfall events.
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