| Title |
The Characteristics and Correlation Analyses of Chlorophyll-α Data Monitored Continuously in Daecheong Reservoir |
| Authors |
연인성 ( In Sung Yeon ) ; 홍지영 ( Ji Young Hong ) ; 홍은영 ( Eun Young Hong ) ; 임병진 ( Byung Jin Lim ) |
| Keywords |
Algal blooms; Automatic water quality monitoring system; Chlorophyll-α; Daecheong reservoir |
| Abstract |
The toxin of Cyanobacteria (blue-green algae) during summer season has been a problem and early prevention should be considered. A variety of methods can be used to forecast algal blooms and this study aims at examining feasibility of chlorophyll-α. The real-time data were collected by automatic water quality monitoring system (AWQMS) in Daecheong reservoir and invalid data were sorted by experts. And then, the sorted data were filled using linear interpolation. When the concentration of chlorophyll-α increased by 15 mg/m(3). water temperature and pH exceeded 26.8℃ and 9.5 respectively. As a result of correlation between chlorophyll-α and other parameters(i.e. water quality items and hydrological data), temperature (r=0.502-0.574). pH (r=0.583-0.681), total organic carbon (TOC, r=0.583-0.681) comparably had higher values. Meanwhile, the data around a day or two showed the highest correlation. In addition, chlorophyll-α is considered to be significantly effected by precipitation and inflow. |