A MATHEMATICAL MODEL TO COMPUTE RUNOFF VOLUME FROM SMALL WATERSHEDS

A. Sarma

Abstract: Over the past several years, water resources modelling has become an increasingly important field, from the standpoints of predicting both the quantity and quality of water discharged from watersheds (Ye W. et al.,1997). Models for computation and forecasting floods have been developed in various parts of the world. However, none of the models can be said to be of universal application, because of the fact that local conditions vary (Pfeiffer E. et al., 1997). It is always worth applying a locally developed model for the purpose. To be precise, every flood prone basin must have a local model for the purpose of flood computation and forecasting. This is necessary because floods affect almost all the sectors of development. The present study was therefore, conceived and undertaken to develop a local model for the river Becva and subsequently to use the same for the river Morava A mathematical model to estimate runoff volume has been developed and will be tested by taking into consideration the hydrological, morphological, soil, vegetative and climatological parameters of the Becva river basin in the Czech Republic. An attempt will also be made to apply this model within the entire Morava river basin to see as to what extent the model predicted values differ from the measured ones.

Keywords: catchment, concentration time, flood forecasting, rainfall-runoff model, watershed

DOI: https://doi.org/ 10.15623/ijret.2017.0610001