Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Monthly Fluctuation of the Han River Water Quality

한강수질의 월변동성에 관한 연구

  • Yoo, Ho-Sik (Division of Civil and Environmental Engineering, Kyonggi University)
  • 유호식 (경기대학교 토목환경공학부)
  • Received : 2004.04.10
  • Accepted : 2004.05.17
  • Published : 2004.07.30
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Abstract

Variations of water quality parameters were investigated for last 13 years in Han river. Deviation from 3 month moving average was suggested for the variation analysis. Many parameters of mainstream and tributaries showed similar monthly fluctuations. Suspended solid of mainstream showed higher fluctuation than that of tributaries due to summer flood. Contrarily, the organic parameters such as BOD, COD, and TN showed lower fluctuations in the mainstreams. The magnitude of deviation was in the order of pH < DO, COD, temp. < BOD, TN < TP, SS. Strong correlation was found in BOD data of adjacent sites. Main sites showed low deviation in comparison to adjacent common sites of mainstream (1:2.4). Mainstream showed low deviation in comparison to tributaries (1:1.7). Seasonal tendency of monthly BOD was confirmed using autocorrelation function. The deviation was in inverse proportion to the magnitude of BOD.

Keywords

References

  1. 백중철, 허준행, 조원철, 월 수질 시계열자료의 추이 및 통계학적 특성 분석, 대한토목학회지, 17(11-2), pp. 147-155 (1997)
  2. 이상훈, 수질자료의 추세분석을 위한 비모수적 통계검정에 관한 연구, 환경영향평가, 4(2), pp. 93-103 (1995)
  3. 이상훈, 수질변화의 계량화를 위한 비모수적 통계준거에 관한 연구, 환경영향평가, 6(1), pp. 111-119 (1997)
  4. van Belle, G., and Hughes, J.P., Nonparametric tests for trend in water quality, Water resources Research, 20(1), pp. 127-136 (1984)
  5. Berryman, D., Bobee, B., Cluis, D., and Haemmerli, J., Nonparametric tests for trend detection in water quality time series, Water resources Research, Bulletin WARBAQ, 24(3), pp. 545-556 (1988)
  6. Hirsch, R.M., Slack, J.R., and Smith, R.A., Techniques of trend analysis for monthly water quality data, Water resources Research, 18(1), pp. 107-121 (1982)
  7. Hirsch, R.M., and Slack, J.R. , Nonparametric trend test for seasonal data with serial dependence, Water resources Research, 20(6), pp. 727-732 (1984)
  8. Hirsch, R.M., Alexander, R.B., and Smith, R.A., Selection of methods for the detection and estimation of trends in water quality, Water resources Research, WRERAQ, 27(5), pp. 803-813 (1991)
  9. Lettenmaier, Detection of trends in water quality data from records with dependent observations, Water resources Research, 12(5), pp. 1037-1046 (1976)
  10. Lettenmaier, Multivariate nonparametric tests for trend in water quality, Water resources Research, Bulletin WARBAQ, 24(3), pp. 505-512 (1988)
  11. Lettenmaier, D.P., Hooper, E.R., Wagoner, C., and Faris, K.B., Trends in stream quality in the continental United States, 1978-1987, Water resources Research, 27(3), pp. 327-339 (1991)
  12. 환경부, 수질측정망 운영계획 (2002)
  13. SAS Institute, SAS User's Guide (2001)
  14. 오광우, 이성덕, 이우리, 시계열 분석, 탐진출판사, pp. 96-119 (2000)