WEAP is an initiative of the Stockholm Environment Institute. Interested in Energy?Read about LEAP: SEI's software for energy planning.Link WEAP and LEAP for combined Water-Energy planning.Watch a video demo!

User Forum

 All Topics | Topic "Water Year Method"

Author Message
 Mr. Imran Nazar Subject: Water Year Method   Posted: 4/6/2013 Viewed: 21854 times How the precipitation is effected by Water Year Method ? kind regards Aumran Nazar
 Mr. Jack Sieber Subject: Re: Water Year Method   Posted: 4/6/2013 Viewed: 21843 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. Jack
 Mr. Imran Nazar Subject: Re: Water Year Method   Posted: 4/6/2013 Viewed: 21837 times Dear Mr. jack Thank you for quick responding , how can i enter the effect of climate change on the run off from catchment . Aumran
 Mr. Jack Sieber Subject: Re: Water Year Method   Posted: 4/6/2013 Viewed: 21833 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: http://www.weap21.org/WebHelp/index.html#Overview_of_Catchment_Calculation_Methods.htm Jack
 Mr. Imran Nazar Subject: Re: Water Year Method   Posted: 4/6/2013 Viewed: 21802 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
 Mr. Jack Sieber Subject: Re: Water Year Method   Posted: 4/7/2013 Viewed: 21801 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: CurrentAccountsValue * Interp(2011, 1.2, 2012, 0.7, 2013, 0.5, 2014, 1, 2015, 1.5, ...) This says that 2011 was wet (120% of average), 2012 was dry (70% of average), 2013 was very dry (50% of average), etc. Jack
Mr. Imran Nazar

Subject: Re: Water Year Method
Posted: 4/7/2013 Viewed: 21770 times
Yes Mr. Jack it became clear for me now thank you very much

best regards Mr. Jack

Aumran
 Topic "Water Year Method"