I’m using HEC-RAS 6.2, from the Unsteady Flow Data dialog box, I created 2 rain gage stations over the model domain.
Following are my concerns:
When I click on the [Plot Stations…] button, it can be observed that a rectangular extent has been generated over the model domain. However, it is not clear what is the cell size used, how the number of rows and columns are computed and what buffer is taken while generating the rectangular extent.
In addition, if I click on the [Rasterization Parameters (Optional)] button, it allows the user to define the raster extent using several options.
However, it is not clear that after using these options, how the extent of the raster is computed. Say for example, if I select Fix Raster Parameters based on current Met Station Extent option, then it generates an additional extent.
However, it is not clear what is the cell size used, how the number of rows and columns are computed and what buffer is taken while generating the rectangular extent.
How can I understand the functionality of Rasterization Parameters?