Reliability of Flood Warning Systems
Publication: Journal of Water Resources Planning and Management
Volume 120, Issue 6
Abstract
Engineering planning and design of a local flood warning system should include a reliability analysis. The reliability of warnings can be quantified in terms of the relative operating characteristic—a relation between the probability of detection and the probability of false warning for a zone of the floodplain—and its transformation, the performance trade‐off characteristic—a relation between the expected number of detections and the expected number of false warnings per year for a zone. Numerical procedures are derived for computing these two characteristics. Two case studies in Pennsylvania are reported. The case of Milton, a town on the West Branch of the Susquehanna River, demonstrates fundamental trade‐offs between the reliability and the lead time of warnings. The case of Connellsville, on the Youghiogheny River, demonstrates synergistic gains in warning reliability due to a coupled solution: a flood‐control dam of the U.S. Army Corps of Engineers and the river forecasting technology of the National Weather Service.
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References
1.
Abramowitz, M., and Stegun, I. A. (1972). Handbook of mathematical functions, Dover Publications, New York, N.Y.
2.
Blackwell, D. (1951). “Comparison of experiments.” J. Neyman (ed), Proc., Second Berkeley Symp. on Mathematical Statistics and Probability, University of California Press, Berkeley, Calif., 93–102.
3.
Krzysztofowicz, R. (1987). “Markovian forecast processes.” J. Am. Statistical Assoc., 82(397), 31–37.
4.
Krzysztofowicz, R. (1992a). “Performance tradeoff characteristic of a flood warning system.” Water Resour. Bull., 28(1), 193–200.
5.
Krzysztofowicz, R. (1992b). “Bayesian correlation score: a utilitarian measure of forecast skill.” Monthly Weather Rev., 120, 208–219.
6.
Krzysztofowicz, R. (1993). “A theory of flood warning systems.” Water Resour. Res., 29(12), 3981–3994.
7.
Krzysztofowicz, R., and Davis, D. R. (1983). “A methodology for evaluation of flood forecast‐response systems, part 2: theory.” Water Resour. Res., 19(6), 1431–1440.
8.
Owen, D. B. (1956). “Tables for computing bivariate normal probabilities.” Ann. of Mathematical Statistics, 27, 1075–1090.
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Copyright © 1994 American Society of Civil Engineers.
History
Received: Jul 8, 1992
Published online: Nov 1, 1994
Published in print: Nov 1994
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