Literature Study on Application of HEC-HMS for Event and Continuous Based Hydrological Modeling

Hydrologic models are simplified, conceptual representations of a part of the hydrologic cycle. The Hydrological Cycle is the journey water takes as it circulates from the land to the sky and back again. This circulation and conservation of earth's water as it circulates from the land to the sky and back again is called the "hydrological cycle" or "water cycle‟. The water cycle is never-ending cycle. Hydrological models are primarily used for hydrologic prediction and for understanding hydrologic processes. Watershed hydrological modeling and associated calibration and validation processes require a large set of spatial and temporal data. In practice, the availability and quality of these data are often an issue to cope with. Sometimes one has to compromise the overall modeling quality because of insufficient high-resolution data for developing, calibrating and validating the model. The current paper describes the study of various literatures on development such a strategy by combining fine-scale event and coarse-scale continuous hydrological modeling with hydrologic engineering center's hydrologic modeling system (HEC-HMS).