To investigate the influence of water area calmness on the red tide development, runoff phenomena due to antecedent precipitation of red tide development day were analyzed. There were examined the water quality variation properties at about the same time of the red tide develop. The red tide was developed when the stage and discharge nearly had not changed. It was estimated that the stability of particle behavior in the mouth of river effected on the red tide develop. Also, the concentrations of CODMn were increased about 241~629% when the red tide developed.

Abstract
 1. 서 론
 2. 자료 및 방법
  2.1. 연구지역
  2.2. 분석방법
 3. 결 과
  3.1. 선행강우조건 및 수위, 유량조건의 검토
  3.2. 적조발생 전후의 수질특성
 4. 결 론
 참 고 문 헌

• 이창수(위덕대학교 건축공학과) | Chang-Soo Lee (Department of Architectural Engineering, Uiduk University) Corresponding Author