The USGS Wyoming-Montana Water Science Center (WYMT WSC) recently completed a report documenting methods for peak-flow frequency analysis following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities (AEPs) for selected streamgages operated by the WYMT WSC. In association with the report, this data release presents peak-flow frequency analyses for 99 selected streamgages that serve as examples showing various aspects of the WY-MT WSC frequency-analysis methods. The results are presented in three child items: a child item containing the results excel spreadsheet, a child item containing the peak flow specification file, and a child item containing the WATSTORE file.
Citation Information
| Publication Year | 2020 |
|---|---|
| Title | Peak-flow frequency analyses for 99 selected streamgages in or near Montana, based on data through water year 2015 (ver. 1.1, August 2020) |
| DOI | 10.5066/F7C827GQ |
| Authors | Peter M. McCarthy, Steven K. Sando, Katherine J. Chase |
| Product Type | Data Release |
| Record Source | USGS Digital Object Identifier Catalog |
| USGS Organization | Wyoming-Montana Water Science Center |
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Methods for peak-flow frequency analysis and reporting for streamgages in or near Montana based on data through water year 2015
Peter M McCarthy
National StreamStats Coordinator
Katherine J. Chase
Surface-Water Specialist
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Methods for peak-flow frequency analysis and reporting for streamgages in or near Montana based on data through water year 2015
This report documents the methods for peak-flow frequency (hereinafter “frequency”) analysis and reporting for streamgages in and near Montana following implementation of the Bulletin 17C guidelines. The methods are used to provide estimates of peak-flow quantiles for 50-, 42.9-, 20-, 10-, 4-, 2-, 1-, 0.5-, and 0.2-percent annual exceedance probabilities for selected streamgages operated by the U. - Connect
Peter M McCarthy
National StreamStats CoordinatorEmailPhoneKatherine J. Chase
Surface-Water SpecialistEmailPhone