Subject: Indicators of hydrological alterations (IHA) Posted: 11/18/2022 Viewed: 4539 times
Hi,
I have some trouble with making this function work and I call for assistance. I know very well the IHA-concept, but I have trouble generating, or finding results, from an IHA calculation.
I have observed daily streamflow data from 6 years at 4 locations (gauges). In the Indicators of Hydrological Alterations menu (first tab - Analysis years), I select Compare Two Time periods. I split the 6 years period into two parts, and run the model. In the Results menu I select Hydrologic Alteration, and e.g. IHA Parameter 37 Mean Annual Flow. I am then prompted "No results available here", which is a bit surprising to me, as I would expected to see the changes in mean annual flow between to two periods selected for each of the gauging stations (and also for other nodes with streamflow results).
Any hints on what I could have done wrong? Thank you!
Mr. Doug Chalmers
Subject: Re: Indicators of hydrological alterations (IHA) Posted: 2/5/2025 Viewed: 547 times
Tor Haakon Bakken and for anyone else wondering-
I am not sure what was wrong in this case. My first recommendations would be to make sure under Results that the Streamflow Gauge and modeled Streamflow results show up as expected and that you are using years in the IHA module within your model timestep run.
If you have since discovered the solution, we would love to hear how you resolved it. Apologies for the delayed response.
Topic "Indicators of hydrological alterations (IHA)"
