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All Topics | Topic "Assessing impact of climate change on surface water supply and demand"
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Author Message
Mr. Longa Seme Isaiah

Subject: Assessing impact of climate change on surface water supply and demand   
Posted: 5/30/2024 Viewed: 703 times
How to combine the water supply and demand while checking the climate change effect on the catchment
Mr. Doug Chalmers

Subject: Re: Assessing impact of climate change on surface water supply and demand   
Posted: 6/5/2024 Viewed: 488 times
Longa,

If you are using catchment objects to represent both runoff and irrigation demand, then you can indeed assess the effects of climate change on water supply and demand. Did you create your catchment objects using automatic catchment delineation, or did you create them manually instead?

If you created your catchment objects using automatic catchment delineation, then you can enter into Schematic --> Catchment Delineation Mode, select Load Climate Data and you can select CMIP6 scenarios, which include a variety of climate change models out through 2100. You also have the option to use a NetCDF file instead. You can see that in the Data screen, several climate variables, specified in the Select Climate Data Source from the previous step, have ReadFromFile expressions which reach in the CMIP6 data. You can save these expressions to load different climate projections in different WEAP scenarios.

If you created your catchment objects manually, then you can either create climate input series using the above method, or by entering in a ReadFromFile expression into your catchments using data you have already saved into a CSV time-series.

Hope this helps, and good luck exploring this topic in your WEAP model.

-Doug
Topic "Assessing impact of climate change on surface water supply and demand"