New Hampshire
Attention!The application for this State is based on StreamStats version 2. Please read the new User Instructions for this application before attempting to use it. The new network navigation and estimating flows based on similar gages, have not yet been implemented in this state. These processes will be added in the near future. Please help us conserve our server system resources and close the Interactive Map window when you are finished using it. Doing so will help ensure system availability for all users. Thank you. Also, please bookmark this page, rather than the Interactive Map page, since the URL for the interactive map may change in the future. We want your feedback! Please send any comments or questions that you have on StreamStats to the StreamStats development team at GS-W StreamStats@usgs.gov. |
StreamStats for New Hampshire can be used to estimate the long-term flood discharges at recurrence intervals of 2-, 5-, 10-, 25-, 50-, 100-, and 500-years for ungaged, unregulated, rural streams. The report below presents the equations used to estimate the flow statistics, describes the errors associated with the estimates, and describes the methods used to develop the equations and to measure the basin characteristics used in the equations. Users should familiarize themselves with the report before using StreamStats to obtain estimates of streamflow statistics for ungaged sites.
The above report describes a technique for estimating flood discharges at selected recurrence intervals for an ungaged site upstream or downstream from a streamgage using a drainage-area adjustment that is not implemented in StreamStats. Interested users should refer to the report for information on use of the method. StreamStats includes a different method for making such adjustments.
StreamStats reports the uncertainty of the estimates for ungaged basins with drainage areas between 0.70 and 1,290 mi2; mean April precipitation between 2.79 and 6.23 inches, percentages of wetlands between zero and 21.8, and main channel slopes between 5.43 and 543 feet per mile. Errors for basins with basin characteristics that are beyond these bounds are unknown.
Interactive Map
StreamStats for New Hampshire was developed in cooperation with the New Hampshire Department of Transportation.
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