The spatial characteristics of the study area were processed using HEC-GeoHMS, as an ArcGIS extension. To simulate runoff volume and peak flow, two kinds of loss methods in HEC-HMS model were tested, and the parameters CN (curve number) and constant loss rate were found the most sensitive ...
Civil engineering Downward model development of the soil moisture accounting loss method in HEC-HMS| Revelations concerning the soil profile PURDUE UNIVERSITY Venkatesh Merwade HolbergJessica ADespite the fact that the soil profile is known to impact streamflow, most Curve Number (CN)-based models ...
HEC-HMS methodrainfall-runoff modellingSCS-CNsurface runoffurban catchmentSurface runoff is a major problem in urban catchments; its generation is always related to the amount of effective rainfall dropped over the surface, however in urban catchments the process is considerably altered by the ...
By simulating the magnitude of peak runoff and the timing of peak runoff generation to an acceptable level, the study revealed the successful applicability of the HEC HMS event-based modelling with the SCS curve number precipitation loss method to simulate monsoon peak flows. Calibrated model with ...
The value of such parameters becomes smaller than zero between 410 s and 534 s, which is not physical (in fact, I/Icr ≥ 0 always); also, in the last 200 s of the transient I/Icr seems to start increasing (instead of remaining equal to zero as in the reference solid curve produced...