The western Pacific subtropical high (WPSH) is one of the key systems affecting summer rainfall over Yangtze River Valley in China. In this study, forecasting capacity WPSH for and streamflow evaluated based on index (WPSHI) derived from NCEP/NCAR reanalysis dataset. It has been found that WPSHI can identify extreme flood years with a higher skill than normal wet years. Specifically, exceedance...

Data-intelligent methods designed for forecasting the streamflow of Fenhe River are crucial enhancing water resource management. Herein, gated recurrent unit (GRU) is coupled with optimization algorithm improved grey wolf optimizer (IGWO) to design a hybrid model (IGWO-GRU) carry out forecasting. Two types predictive structure-based models (sequential IGWO-GRU and monthly IGWO-GRU) compared oth...

Forecasting river discharge is a very important issue for the prediction and monitoring of ground effects related to severe precipitation events. The meteorological forecast systems are unable to predict precipitation on small spatial (few km) and temporal (hourly) scales. For these reasons the issuing of reliable flood forecasts is not feasible in those regions where the basin’s response to ra...

This paper investigates the influence of mean areal rainfall estimation errors on a specific case study: the use of lumped conceptual rainfall-runoff models to simulate the flood hydrographs of three small to medium-sized catchments of the upper Loire river. This area (3200 km2) is densely covered by an operational network of stream and rain gauges. It is frequently exposed to flash floods and ...

Deriving relationships between catchment-scale hydrologic response and landscape attributes allows the hydrologic response of an ungauged catchment to be predicted from its landscape attributes and climate. In this study, a lumped conceptual rainfall-runoff model was applied at a daily timestep to 16 small (less than 1 km) catchments in the Maroondah region of Victoria, Australia. The six param...

This paper describes a procedure grouping streamflow patterns across Turkey that exhibit similar annual flow behaviors. Streamflow information is the integrated response of the river basin, such as topography, soil and vegetation to external impacts such as climate. A regionalization of annual data is carried out using k-means analysis. Streamflow series from 80 gauging stations were chosen to ...

Streamflow prediction in ungauged basins provides essential information for water resources planning and management and ecohydrological studies yet remains a fundamental challenge to the hydrological sciences. A methodology is presented for stratifying streamflow regimes of gauged locations, classifying the regimes of ungauged streams, and developing models for predicting a suite of ecologicall...

An increasing trend in global streamflow has been variously attributed to global warming, land use, and a reduction in plant transpiration under higher CO2 levels. To separate these influences for the coterminous United States, we use a set of over 1000 United States Geological Survey stream gauges primarily from small, minimally disturbed watersheds to estimate annual streamflow per unit area ...

A physically based distributed hydrological model, MIKE SHE, was used to evaluate the effects of altered temperature and precipitation regimes on the streamflow and water table in a forested watershed on the southeastern Atlantic coastal plain. The model calibration and validation against both streamflow and water table depth showed that the MIKE SHE was applicable for predicting the streamflow...