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
Publications
History and Credits

Using WEAP
Download
Licensing
User Guide
Tutorial
Videos (YouTube)

User Forum
Discussions
Members List
Edit Profile

Additional Support
Training
University Courses
Collaboration

About Us
SEI-US Water Resources Program
Please Contact Us

LEAP
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 "Headflow"
Log in to post new messages or reply to existing messages.
 
Author Message
Ms. Aiman Zafar

Subject: Headflow   
Posted: 5/16/2024 Viewed: 2187 times
hey,can you pls elaborate how to measure the headflow using simplified coefficient method.
Mr. Doug Chalmers

Subject: Re: Headflow   
Posted: 5/28/2024 Viewed: 1814 times
Aiman,

There is a subchapter called Using the Simplified Coefficient Method under the Hydrology chapter of the WEAP Tutorial, https://www.weap21.org/tutorial/, which can guide you in setting up this method.

Essentially, your catchment object has climate inputs of precipitation and ET reference (which is the amount of reference ET based on climate effects) and then an input of Kc for each land use type (representing the ET associated with the land cover type). Any precipitation that does not evaporate is assumed to runoff and generate streamflow. Note that this method does not consider effects of antecedent soil moisture, which the Soil Moisture Method provides more accurately.

Hope this helps!
-Doug
Topic "Headflow"