Dear all, I am new in WQ modelling and currently using QUAL2k for modelling WQ of a river having 13 km length. I have inputted the required data in the sheets like Headwater, Reach and Meteorology. Now I need to input data in point and non point source sheets. It is not possible for me to collect primary data by field measurement. And I have not found any secondary data from literatures regarding pollution source of the river. Now, How can I get the data like point and non point inflow, location, concentration of the WQ parameters using google earth or QGIS? I have the landcover and DEM of the study area. Can you please help me regarding this?
Regards,
Rafiuzzaman Khan