Import Time-Series Data
To insert Time-Series Data, you have to select Time-Series Data Manager from the Components button.
HEC-HMS
Loss Methods: Deficit and Constant Method
In HEC-HMS, there are several basin modeling methods available, depending on the level of detail, available data and purpose of the simulation.
How to compose a new basin with its elements
The basin model consists of multiple elements representing hydrologic features. These can be added by right-clicking on the Basin Model Map and selecting Add Element. The key elements include:
Preprocess Sinks
In HEC-HMS, when you click on GIS in the menu bar and then select Preprocessing Sinks, you perform a GIS operation to identify and handle sinks in the watershed model.Once performed this operation, it is not possible do undo it. Therefore, before doing it, be careful to have your DEM file correctly saved in your folder or create a copy of it.
Useful websites
https://spatialreference.org/This website allows to download the .prj file to set the coordinate system of your HEC-RAS and HEC-HMS files.
How to start a new project
The first steps for the beginning of an HEC-HMS projects are: 1) Create a New Project, giving a Name, a Description and a folder location.File > New > Create New Project
QGIS
How to extract catchments, watershed in QGIS
An extent or an area of land where surface water from rain, melting snow, or ice converges to a single point at a lower elevation, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, sea, or ocean.
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