Flood Frequency Data Collection for Alaska and Conterminous Drainage Basins in Canada
Estimates of the magnitude and frequency of floods are needed for engineering design of transportation and water-conveyance structures, flood-insurance studies, flood-plain management, and other water-resource purposes. In 2016, the U.S. Geological Survey estimated flood frequency and magnitude for selected streamgages in Alaska and conterminous basins in Canada and developed methods for estimating flood frequency and magnitude at ungaged streams (Curran and others, 2016). More current estimates of flood frequency are often needed for water-resource purposes, including estimating the annual exceedance probability of an observed flood peak.
About the collection
Available here are links to flood frequency analyses and selected observed flood probability data for drainage basins around Alaska and conterminous basins in Canada computed using methods and information documented in Curran and others (2016). Data are downloadable as ZIP packages organized by drainage basin. Data follow a standardized data and metadata format.
Index
| Drainage Basin | USGS site identification numbers | Final water year used in analysis |
|---|---|---|
| Fortymile River | 15320100, 15348000 | 2020 |
| Hulahula River | 15980000 | 2021 |
| Delta River | 15478449, 15478093 | 2022, 2023 |
Suggested Citation: Curran, J.H., 2022, Flood frequency data collection, Alaska and conterminous basins in Canada: U.S. Geological Survey data release, https://doi.org/10.5066/P9IZB7HH
