ارزیابی اهمیت ایستگاههای پایش کیفی رودخانه‌ها با استفاده از آنالیز مؤلفه‌های اصلی و آنالیز فاکتور، مطالعه موردی: رودخانه کارون

نوع مقاله: مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد مهندسی عمران_محیط زیست، دانشگاه تربیت مدرس تهران

2 استادیار دانشکده مهندسی عمران، دانشگاه تهران

3 استادیار دانشکده فنی، دانشگاه تربیت مدرس تهران

4 دانش آموخته کارشناسی ارشد مهندسی عمران-آب، دانشگاه صنعتی امیرکبیر

چکیده

ارزیابی شبکه پایش موجود در رودخانه‌ها و تعیین ایستگاههای پایش اصلی و فرعی گامی مهم در بهبود کارآیی و بهنگام‌سازی شبکه‌های پایش می‌باشد. در این مطالعه با استفاده از تکنیک‌های آنالیز مؤلفه‌های اصلی و آنالیز فاکتور، ایستگاههای پایش کیفی آب بخشی از رودخانه کارون ارزیابی شد. برای این منظور از بین ایستگاههای موجود، هشت ایستگاه انتخاب و با استفاده از داده‌های کیفی اندازه‌گیری شده در این ایستگاهها از سال 1380 تا 1382، ایستگاههای اصلی و فرعی تعیین شدند. در نهایت با استفاده از تحلیل همبستگی، اعتبار نتایج به دست آمده از این دو روش مورد تأیید قرار گرفت. بر اساس نتایج این تحقیق، می‌توان یک ایستگاه (بند میزان) را از مجموع هشت ایستگاه مورد مطالعه به عنوان ایستگاه فرعی مشخص کرد. همچنین مطالعه‌ای مشابه جهت تعیین متغیرهای کیفی اصلی از فرعی در این ایستگاهها انجام گرفت که نتایج به دست آمده از فاکتور KMO ، امکان استفاده از دو روش فوق جهت انجام این کار را تأیید نکرد.

کلیدواژه‌ها


عنوان مقاله [English]

Assessment of Importance of Water Quality Monitoring Stations Using Principal Components Analysis and Factor Analysis: A Case Study of the Karoon River

نویسندگان [English]

  • Rooholah Noori 1
  • Reza Kerachian 2
  • Ahmad Khodadadi Darban 3
  • Ahmad Shakibaienia 4
1 Grad. Student of Environmental Engineering, Civil Engineering Dept., Tarbiat Modares University
2 Assis. Prof. of Civil Engnieering, University of Tehran
3 Assis. Prof., Engineering College, Tarbiat Modares University
4 MSc in Civil Engineering, Amir-Kabir University of Technology
چکیده [English]

Assessment of monitoring networks of surface waters and determination of main and tributary stations is an important step in the development and improvement of these networks and in increasing their efficiency. In this study, Principal Components Analysis, PCA, and Factor Analysis, PFA, techniques were employed to evaluate water quality monitoring stations on theKaroonRiver. From among the monitoring stations available, eight were selected and the measured data from 2002 to 2004 were used to determine the main and tributary stations. Finally, results were validated employing the regression analysis technique. Based on the results obtained in this study, only one monitoring station (Bandemizan) was identified as the main one among the eight stations selected. Also a similar study was conducted to determine main and tributary quality variables; however, the results of the KMO factor did not confirm using PFA and PCA for this part of study.

کلیدواژه‌ها [English]

  • Assessment of Monitoring Networks
  • principal components analysis
  • Factor analysis
  • The Karoon River
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