Welcome to WEAP's Website
WEAP
WEAP is an initiative of the Stockholm Environment Institute.


About WEAP

Home
Why WEAP?
Features
What's New?
Sample Screens
Demonstration
Applications
Publications
History and Credits

Using WEAP
Download
Licensing
User Guide
Tutorial
Videos
Resources

User Forum
Discussions
Members List
Edit Profile

Additional Support
Training
University Courses
Collaboration

About Us
SEI-US Water Resources Program
Please Contact Us


Environmental News
LEAP
Interested in Energy?
Read about LEAP: SEI's software for energy planning.

User Forum

All Topics | Topic "Runoff Resistence Factor"
Log in to post new messages or reply to existing messages.
 
Author Message
Huzefa Haji

Subject: Runoff Resistence Factor   
Posted: 5/21/2009 Viewed: 20434 times
Dear All,
I am wondering about the best way to derive this parameter. I am using virgin conditions for calibrating my model ie against naturalised flows. Thereafter, I will input the developments like reservoirs and water demands and simulate the changes in flows and compare that to observed flows.

One way to determine RRF would be to calculate the ratio of naturalised runoff to Precipitation. However this would be ok if only simulating for a period for which such data is available. Now what if we want to simulate into the future, for which we dont have flow data?

After calibration, simulating land use changes in future would definitely mean different runoff resistence factors. So how would one derive new RRFs?

The other idea I had was to derive RRF using a combination of LAI and slope, thus detaching its dependence on flow values as in the method above. I am still trying to figure out a way to represent this in the range of WEAP( 0.1 - 10)

Any ideas on this?

Regards,
Huzefa
Topic "Runoff Resistence Factor"