Improved unit hydrograph identification for seven Welsh rivers: implications for estimating continuous streamflow at ungauged sites
نویسندگان
چکیده
منابع مشابه
Unit hydrograph characterization of flow regimes leading to streamflow estimation in ungauged catchments (regionalization)
The IHACRES rainfall–streamflow modelling approach provides a powerful set of techniques for assisting with parametrically efficient regionalization of streamflow response characteristics (unit hydrograph and loss module parameters) from inputs of rainfall, evaporation surrogates and physical catchment descriptor data. Recent work has indicated where further improvements can be made to the mode...
متن کاملModeling daily streamflow at ungauged catchments: What information is necessary?
NOTICE: This is the author’s version of a work that was peer reviewed and accepted for publication in Hydrological Processes journal. Changes resulting from the publishing process, such as editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in HYDROLOGICAL PROCESSES, VOL 28, DOI#...
متن کاملImproved unit hydrograph characterisation of the daily flow regime (including low flows) for the River Teifi, Wales: towards better rainfall-streamflow models for regionalisation
An established rainfall-streamflow modelling methodology employing a six-parameter unit hydrograph-based rainfall-runoff model structure is developed further to give an improved model-fit to daily flows for the River Teifi at Glan Teifi. It is shown that a previous model of this type for the Teifi, which (a) accounted for 85% of the variance in observed streamflow, (b) incorporated a pure time ...
متن کاملPractical aspects of calibrating and selecting unit hydrograph-based models for continuous river flow simulation
A continuous simulation rainfall-streamflow modelling approach that identifies unit hydrographs for total streamflow has been applied to an 11-year record from a national hydrometric monitoring network catchment in the UK. The model is of the parametrically parsimonious conceptual model (PPCM) type that can make efficient use of rainfall, streamflow and air temperature data readily available fr...
متن کاملcalculated geomorphologic instantaneous unit hydrograph (giuh) and width-function based instantaneous unit hydrograph (wfiuh) in the ungauged watershed
the role of unit hydrograph is very important in prediction of floods in the rivers, design protection and control structures in the catchment area. therefore in the basin without hydrometric stations, by using mathematical and empirical relationship and based on climatic data, the water level in the basin is estimated. two methods of geomorphologic instantaneous unit hydrograph and width funct...
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ژورنال
عنوان ژورنال: Hydrological Sciences Journal
سال: 2003
ISSN: 0262-6667,2150-3435
DOI: 10.1623/hysj.48.5.743.51454