Update Regional Skew Characteristics of Annual Peak Flows Through StreamStats
| 项目名称： | Update Regional Skew Characteristics of Annual Peak Flows Through StreamStats |
| 摘要： | Accurate flood-frequency characteristics are required to design safe bridges and culverts. Unfortunately, flood-frequency characteristics can be determined directly only at stream crossings located at or near streamflow-gaging stations with long periods of peak-flow record. Consequently, at most stream crossings, flood-frequency characteristics must be estimated. Those estimates typically have been determined from regional regression equations for streams that are unregulated and drain predominately rural areas. The last such set of regional regression equations developed for Ohio was based on peak-flow data collected through water year 2001. The goals of this research are to (1) evaluate and update regional estimates of skewness in peak-flow time series, (2) update flood-frequency estimates for Ohio streamflow gages based on the updated regional skew information and peak-flow data collected through water year 2014, (3) develop new regional regression equations relating selected basin characteristics to peak flows with annual exceedance probabilities ranging from 0.5 to 0.002, and (4) implement the regional regression equations in the U.S. Geological Survey's StreamStats application (http://streamstats.usgs.gov). |
| 状态： | Completed |
| 资金： | $139315 |
| 资助组织： | Federal Highway Administration |
| 项目负责人： | Syar, Jeff |
| 执行机构： | U.S. Geological Survey |
| 主要研究人员： | Koltun, G F |
| 开始时间： | 20151001 |
| 预计完成日期： | 20190331 |
| 实际结束时间： | 0 |
相关文献
- Updating Techniques for Estimating Magnitude and Frequency of Floods for Rural Basins in the Southeastern United States
- Flood-Frequency Analysis in the Midwest: Addressing Potential Nonstationary Annual Peak-Flow Records
- Flood-Frequency Analysis in the Midwest: Addressing Potential Nonstationary Annual Peak-Flow Records
- Statewide StreamStats Web Tool for Estimating Streamflow Statistics - Regression Equation Update
- Design-flood Flows in a Changing Climate - Peak Flows Phase 2
- Design-Flood Flows in a Changing Climate
检索历史
应用推荐
