论文信息 - HEAVY RAINFALL DISTRIBUTIONS BY SEASON IN LOUISIANA: SYNOPTIC INTERPRETATIONS AND QUANTILE ESTIMATES

HEAVY RAINFALL DISTRIBUTIONS BY SEASON IN LOUISIANA: SYNOPTIC INTERPRETATIONS AND QUANTILE ESTIMATES

: In most studies, quantile estimates of extreme 24-hour rainfall are given in annual probabilities. The probability of experiencing an excessive storm event, however, differs throughout the year. As a result, this paper explored the differences between heavy rainfall distributions by season in Louisiana. It was concluded by using the Kruskal-Wallis and Mann-Whitney tests that the distribution of heavy rainfall events differs significantly between particular seasons at the sites near the Gulf Coast. Furthermore, seasonal frequency curves varied dramatically at the four sites examined. Mixed distributions within these data were not found to be problematic, but the mechanisms that produced the events were found to change seasonally. Extreme heavy rainfall events in winter and spring were primarily generated by frontal weather systems, while summer and fall events had high proportions of events produced by tropical disturbances and airmass (free-convective) conditions.

B. Keim | G. E. Faiers

[1] K. Hirschboeck,et al. A Synoptic Evaluation of Frequencies and Intensities of Extreme Three-and 24-Hour Rainfall in Louisiana∗ , 1994 .

[2] B. D. Keim,et al. Frequency of Heavy Rainfall Events in New Orleans, Louisiana, 1900 to 1991 , 2013 .

[3] V. Singh,et al. Comparative evaluation of frequency distributions for Louisiana extreme rainfall , 1993 .

[4] B. Keim,et al. Temporal Fluctuations of Heavy Rainfall Magnitudes in New Orleans, Louisiana , 1992 .

[5] S. Hsu. Effects of surface baroclinicity on frontal overrunning along the central Gulf coast , 1992 .

[6] J. Cruise,et al. a Hydroclimatic Application Strategy for the Poisson Partial Duration Model , 1990 .

[7] Hydroclimatically-Defined Mixed Distributions in Partial Duration Flood Series , 1987 .

[8] J. D. T. Oliveira. Extreme values and meteorology , 1986 .

[9] C. Chappell,et al. Synoptic and Meso-α Scale Aspects of Flash Flood Events1 , 1979 .

[10] Robert A. Muller,et al. A Synoptic Climatology for Environmental Baseline Analysis: New Orleans , 1977 .

[11] L. Bosart,et al. An Examination of the Frequency and Mean Conditions Surrounding Frontal Incursions into the Gulf of Mexico and Caribbean Sea , 1976 .