Hydrologic Input-output model of Mt. Isarog watershed: Estimating the channel cross section runoff overflow using fuzzy rule based system

Document Type: Regular Article

Authors

1 College of Engineering and Technology, Partido State University, Goa, Camarines Sur Philippines

2 Associate Professor, College of Education, Partido State University, Goa, Camarines Sur

3 Assistant Professor, College of Engineering and Technology, Partido State University

4 Associate Professor, College of Engineering and Technology, Partido State University, Goa, Camarines Sur, Philippines

10.22115/scce.2019.201080.1127

Abstract

This study estimated the daily extreme runoff water on the watershed based from the gathered twenty four hour peak precipitation per month of year 2018 using modified soil conservation system (SCS-CN) method. This established fuzzy rule based system which is used to estimate the runoff that could pass the channel without overflow, and this described the event of overflow in the river channel. Rain gauge was used to collect the daily rainfall data. Pattern recognition method was used to compute watershed area through satellite images and in confirming areas with evidences of runoff overflow. The process was centered on the size of the cross sectional area of the river and the amount of river water discharge. The highest precipitation event that happened on the month of December has found the river channel cross section to be insufficient to transport the extreme daily watershed runoff. Traces of runoff overflow are visible on satellite images.

Keywords



Articles in Press, Accepted Manuscript
Available Online from 05 November 2019
  • Receive Date: 09 September 2019
  • Revise Date: 20 November 2019
  • Accept Date: 05 November 2019