Abstract
Regional flood frequency analysis (RFFA) is widely used to estimate design floods at ungauged or poorly gauged catchments. The success of any RFFA depends on the quantity and quality of gauged streamflow data availability to form homogeneous regions. An RFFA technique is intended for quick design flood estimation where the resolution of a complete streamflow hydrograph is not justified due to time and budgetary constraints. An RFFA method consists of three principal steps (as shown in Figure 22.1): (1) data preparation, selection of a set of gauged catchments, streamflow, climatic and catchment characteristics data preparation, and at-site quantile estimation; (2) formation of regions and formation of homogeneous regions from the available streamflow gauging stations; and (3) development of regional estimation models, and derivation of prediction equations to estimate flood statistics and quantiles.
| Original language | English |
|---|---|
| Title of host publication | Handbook of Engineering Hydrology |
| Subtitle of host publication | Modeling, Climate Change, and Variability |
| Publisher | CRC Press |
| Pages | 451-469 |
| Number of pages | 19 |
| ISBN (Electronic) | 9781466552470 |
| ISBN (Print) | 9781466552463 |
| DOIs | |
| Publication status | Published - 1 Jan 2014 |
Bibliographical note
Publisher Copyright:© 2014 by Taylor & Francis Group, LLC.
