Flooding is the most serious natural disaster and often happens in many countries around the world. Dabong Town which is located in the southern district of Kuala Krai, Kelantan was the case study of this research. Floods occur periodically at Kampung Dabong Hulu, Kampung Dabong Hilir and Kampung Chegar Lapan because of the heavy rainfall during the monsoon season. The main objective of this study is to determine which areas are exposed to floods and characterizing the flood zones in the Dabong Town by using Geographic Information System (GIS). Secondary data was gathered from the Department of Irrigation and Drainage while field investigations were conducted at the flooded area. Several questionnaires were distributed to the respondents in order to identify the extent of floods and depth of flooded areas. The results show that three parameters of flood hazards level which are low, medium and high have significant influences on the river flood hazard maps pattern. The area along the Galas River possessed high risk to flood and the total of the high hazard area is 378.39 hectares. Medium hazard area is shown as 57.11 hectares while low hazard area is 37.63 hectares.
Monitoring of groundwater quality in today's scenario is very much important. Due to urbanization and population pressure regular monitoring of groundwater for drinking as well as irrigation purposes need a major concern. With this aim, a study has been carried out consisting 26 groundwater samples in May 2017, to access the physiochemical characteristic, water quality index (WQI) of groundwater by using GIS software and to find out the groundwater suitableness for drinking as well as for irrigation purpose. The pH is slightly alkaline and the TDS is much more than prescribed limits of BIS. The trend of cations in groundwater are Ca2+>Na+>Mg2+>K+ while anions trend is HCO3->SO42->Cl->NO3->CO32->F-. The Ca-Mg-HCO3 and Na-K-Cl-SO4 types of groundwater facies were dominant. Generally, the chemical changes in groundwater are administered by the evaporation process with ion exchange, and mixing of particles is the significant source of the solute acquisition process. WQI of the study area suggested that the 15% sample is unsuitable, 69% is poor and remaining is good for drinking uses. The potential salinity of the groundwater sample is nearly high although the majority of the sample is suited for irrigation activities.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.