Hydrology

Hydrological modeling plays a crucial role in assessing and predicting the behavior of natural and engineered waterways. In the United States, there are two widely used models for hydrological analysis are HEC-1 and HEC-HMS. Both models were developed by the United States Army Corps of Engineers Hydrologic Engineering Center (HEC). HEC stopped updating HEC-1 in … Read more

A hydrograph represents the flow rate over time at a particular geographic location. Hydrographs can be used to show how watersheds respond to changes in the watershed. For example, a watershed with a significant amount of impervious area will produce a skinnier hydrograph with a higher peak flow. In contrast, an undeveloped watershed will tend … Read more