Subject: Water Year Method Posted: 4/6/2013 Viewed: 15759 times
How the precipitation is effected by Water Year Method ?
Subject: Re: Water Year Method Posted: 4/6/2013 Viewed: 15758 times
The Water Year Method is only used if you select Water Year Method as the method for calculating a river's headflow or a groundwater's recharge. It is not used for catchments. Therefore, catchment precipitation is NOT affected by the Water Year Method.
Subject: Re: Water Year Method Posted: 4/6/2013 Viewed: 15754 times
Dear Mr. jack
Thank you for quick responding , how can i enter the effect of climate change on the run off from catchment .
Subject: Re: Water Year Method Posted: 4/6/2013 Viewed: 15753 times
There are several different catchment methods, each of which have different climate parameters that affect runoff. Please see the User Guide for more information:
Subject: Re: Water Year Method Posted: 4/6/2013 Viewed: 15723 times
Yes Mr. jack I us Rainfall Runoff Method (Simplified Coefficient Method) and I want to enter the future predicted monthly precipitation on the catchment for several year and see how the runoff affected by it
Subject: Re: Water Year Method Posted: 4/7/2013 Viewed: 15722 times
In this case, it is your responsibility to define how preciptation will change in the future.
If you wanted to forecast future precipitation using a method like the Water Year Method, you could do it with a simple expression. Here is an example of a scenario expression that will multiply the Current Acounts monthly values (presumably an average water year) by a value representing the Water Year -- less than 1 for a dry year, greater than 1 for a wet year: