| Abstract: | A mixed population of flood flows was shown to cause quality-of-fit problems if a single-population flood-frequency distribution was used to describe the flood data. The three populations in this mix were "ordinary," tropical cyclone, and ice-jam-release floods. Parametric descriptions of the single and separated flood populations were evaluated using probability-plot correlation-coefficient tests. These tests quantified how well the flood-probability distributions agreed with plotting-position descriptions of the data and quantified the differences due to the mixed-population analysis. High outliers caused the high skewness found in the single- population analyses. The tropical cyclone component was underestimated by single-population analyses at gauging stations in Massachusetts that had little data. |
| Genre: | Article |
| ProdID: | 70023559 |
| Citation Author: | Murphy, P. J. |
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| Citation End Page: | 70 |
| Citation Issue: | 1 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Hydrologic Engineering |
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| Citation Number Of Pages: | 9 |
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| Citation Search Results Text: | Evaluation of mixed-population flood-frequency analysis; 2001; Article; Journal; Journal of Hydrologic Engineering; Murphy, P. J. |
| Citation Start Page: | 62 |
| Citation Volume: | 6 |
| Citation Year: | 2001 |
| Type: | citation/reference |
| Text: | Evaluation of mixed-population flood-frequency analysis; 2001; Article; Journal; Journal of Hydrologic Engineering; Murphy, P. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1061/(ASCE)1084-0699(2001)6:1(62) |
| Date Other: | Mon, 1 Jan 2001 00:00 -0600 |
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