Assessing Water Quality Index in River Basin : Fuzzy Inference System Approach
Journal Title: Malaysian Journal of Geosciences - Year 2017, Vol 1, Issue 1
Abstract
Water Quality Index is an important water assessment that sustain and conserve the aquatic ecosystem. In Malaysia, the current classi ication practice on Department of Environmental Water Quality Index (DOE WQI) shows rigid value in term of assessing the input of parameters that close to a class boundary. Hence, this study proposed a technique to assess the parameters in a holistic manner by using the Fuzzy Inference System (FIS). The approach as an assessment tool represents the classes of various ranges and aggregating the parameters using membership function and Centroid Function respectively. A numerical example based on actual data from one of the sampling station from Inanam Likas River Basin was adapted in this study. It was adapted to demonstrate the proposed approach. Findings shown using the proposed methods indicate that the river has Poor water status. Overall, FIS is able to assess the parameters and execute into a single index that represent the condition from poor to excellent scales of the water quality
Authors and Affiliations
Herman Umbau Lindang, Zamali Hj Tarmudi, Ajimi Jawan
Keywords
Related Articles
- EP ID EP263429
- DOI 10.26480/mjg.01.2017.27.31
- Views 114
- Downloads 0
ANALYSIS OF SEVERAL HYDROLOGICAL-DROUGHT DURATION PARAMETERS IN MENGALONG RIVER BASIN, SIPITANG, SABAH
Drought is a phenomenon of water shortage that will impact the wellbeing of human life. The hydrological drought is a situation of water shortage compared to normal conditions. The degree of severity of drought events ca...
STAKEHOLDERS’ RESPONSE AND PERSPECTIVES ON FLOOD DISASTER OF PAHANG RIVER BASIN
The Pahang river basin is the largest river basin in the Pahang State, with total catchment area covering 29300km2. Floods of Pahang river basin have become an annual natural disaster event where all the stakeholders hav...
SLOPE STABILITY STUDY AROUND KAMPUNG KUALA ABAI, KOTA BELUD, SABAH, MALAYSIA
The study area is located in the northwestern part of Kota Belud, Sabah and underlain by Late Eocene-late Early Miocene of the Crocker formation. The objectives of this study are to determine the mode of failures, factor...
Flood Potential Analysis (FPAn) using Geo-Spatial Data in Penampang area, Sabah
Flooding is one of the major natural disasters in Sabah, Malaysia. Several recent cases of catastrophic flooding were recorded especially in Penampang area, Sabah (e.g. July 1999; October 2010; April 2013; October & Dece...
THE CRUST AND UPPERMOST MANTLE S-WAVE VELOCITY STRUCTURE BENEATH JAPAN ISLANDS REVEALED BY JOINT ANALYSIS OF P- AND S-WAVE RECEIVER FUNCTIONS
We have studied the crust and uppermost mantle S-wave velocity structure beneath Japan Islands by using the teleseismic waveform data above Mw 6.0 recorded from January 2006 to February 2017 by 15 Hi-Net stations and the...