List of Articles TOPSIS

• Open Access Article
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  1 - Environmental risk assesssment of construction of caspian port in Anzali free zone by using Integration AHP& TOPSIS
  shamim moghadami niloofar Abedinzade Maryam  Haghighi khomami
  10.29252/.2.2.35
  20.1001.1.26763060.1396.2.2.5.2
  Environmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as ana More

  Environmental risk assessment is a further step of environmental impact assessment and analyze different aspects of risk, while understanding the Environmental impact zone, the environmental sensitivity of the area affected by special environmental values as well as analysis and risk assessment district is considered. To accomplish this study first by using of field investigation the activities which leads to risk in construction of Caspian port water front were identified and in order to extract the significant risks the specialists questioner (Delphi) was used. Finally among the identified risks, 10 environmental risks were chosen for prioritizing.After identifying the risks, indicators such as probability, severity of risk and the sensibility of the environment were selected as prioritizing criteria. AHP method and ECPRO 2000 software, for determining the risk probability, for determination the severity of risk scores and the reference texts for determining the values of sensitivity were applied. After determining the indicators, the TOPSIS software was used to risk prioritizing. The results of prioritizing studied risk showed that the highest risk is related to increased turbidity, deformation of substrate and water pollution are with weights 0.938, 0.898 and 0.662 respectively. Manuscript profile
• Open Access Article
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  2 - Investigation of Gilan index dams' water quality using multivariate methods
  Hanieh Mirbolooki Babak Razdar Matin Mohafezatkar
  10.29252/.5.8.25
  20.1001.1.26763060.1399.5.8.1.1
  Nowadays, the importance of water is known more than before as a life factor and the axis of sustainable development that to protect and manage it, it needs to be controlled using laboratory tests and various water quality indexes. The purpose of this study was to inves More

  Nowadays, the importance of water is known more than before as a life factor and the axis of sustainable development that to protect and manage it, it needs to be controlled using laboratory tests and various water quality indexes. The purpose of this study was to investigate water quality in diversion dams in Guilan province in which the dams have been ranked using Shannon and TOPSIS entropy methods. The dams included Pasikhan, Shakhzar, Polrud and Tarik and the measured indicators included Ec, pH, TDS, Temperature, SO4, HCO3, Cl, Ca, Mg, Na, TSS, DO, BOD5 and COD. Shannon entropy results showed that among the indicators, the highest index weight is related to TSS with the amount of 0.1973 and the lowest one is related to pH with the amount of zero. Topsis tests results showed that based on the weights derived from entropy and water quality indicators, Pasikhan dam is in the first rank, Polrud dam is in the second rank, Shakhzar dam is in the third rank and Tarik dam is in the last rank. So, according to multivariate selection methods, water quality in different dams with similar conditions can be investigated. Manuscript profile