Daily Drought Monitoring by the Use of Existing Hydrologic Records

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by Tiao J. Chang, Ohio Univ, Athens, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract: To manage water efficiently in case of drought, an effective drought monitoring method has been of interest. Drought durations and their conditional probabilities are estimated by applying the method of truncation to the selected hydrologic time series of streamflow, precipitation, groundwater, temperature, and lake elevation. The drought severity levels were defined using a combination of the above five hydrologic indicators. A daily drought monitoring method was developed using the defined truncation levels, durations, and conditional probabilities. Data from the Scioto River Basin in central Ohio were used to test the proposed method.

Subject Headings: Hydrology | Droughts | Probability | Water resources | Basins | Rivers and streams | Water conservation | North America | Ohio | United States

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