Peak Flow Stationary
| 项目名称： | Peak Flow Stationary |
| 摘要： | There is evidence that peak flows on Maine rivers have increased over the past 50 years (Hodgkins, G. A., and Dudley, R. W., 2005, Changes in the magnitude of annual and monthly streamflows in New England, 1902-2002: U. S. Geological Survey Scientific Investigations Report 2005-5135). If peak flows in Maine are changing over time (lack of stationarity), bridges and culverts may currently be under designed. This two year study will be a collaborative effort with the Maine USGS Office. Maximum annual streamflow-trend magnitudes will be investigated for approximately 45 regulated and unregulated streams in Maine that have at least 50 years of data, using the non-parametric Sen Slope. T-year peak flow estimates (such as the 10-year or 50-year flood) will be computed with standard flood-frequency methods as in Hodgkins (1999, Estimating the magnitude of peak flows for streams in Maine for selected recurrence intervals: U.S. Geological Survey Water-Resources Investigations Report 99-4008) using the entire period of streamflow record and for rolling 30-year periods (at 10-15 year intervals). Comparison of these results will quantify the sensitivity of T-year flood estimates computed on the basis of different periods of record. |
| 状态： | Completed |
| 资金： | 70000.00 |
| 资助组织： | Maine Department of Transportation |
| 项目负责人： | Peabody, Dale |
| 开始时间： | 20070702 |
| 实际结束时间： | 20090630 |
| 主题领域： | Geotechnology；Highways；Hydraulics and Hydrology |
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