Using Arima Time Series Model in Forecasting the Trend of Changes in Qualitative Parameters of Sefidrud River
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2014, Vol 8, Issue 3
Abstract
Sefidrud River is considered as the biggest river in northern Iran which is undergoing many changes due to increased water needs in agricultural, industrial and other sectors as well as increased pollution compiled by such consumptions. In this paper, ARIMA Model (2.0.0) was used to forecast the trend of changes in TSS, DO and NO3 parameters of two stations of Sefidrud River in Astaneh and Manjilin statistical year of 2010 separately at each station. The regression coefficient of actual and fitted values for each parameter were 85%, 74% and 75% in Astaneh station and 78%, 80% and 82% in Manjil station, respectively.To test the forecasting conducted, we also used the data of year 2011 for Astaneh station and data of year 2012 for Manjil station, which emphasized on good and relatively good performance of the presented model.
Authors and Affiliations
Mina Ranjbar| MA Graduate in the field of Environmental Pollutions, Islamic Azad University, Tonekabon Branch, email: Ranjbarm1982@yahoo.com, Mohammadreza Khaledian| Faculty Member of Irregation Education Dept., University of Guilan, E-mail: mkh572000@yahoo.com
Keywords
Related Articles
- EP ID EP6570
- DOI -
- Views 301
- Downloads 11
The effect of exercise on component of the brands consumers choose
Over the past decade the massive growth of the purchasing power of the vast choices available in most countries because of Most buyers have paid special attention to the type of communication and the product brand and th...
Evaluation of the effect of cash holding, dividends and financial leverage on competitive power of firms accepted in stock market
Cash is a great part of a firm asset. Therefore, it is a vital resource of each business institution which is paid attention by managers and investors. Current paper is an applicable one which is aimed at investigating t...
Use of Physiological Parameters as Tools to Screen Drought Tolerant Safflower Genotypes
Drought stress is one of the major limitations to plant productivity across the world. Identifying suitable screening tools and also quantifiable traits would facilitate the crop improvement process for drought tolerance...
Relationship between nutrient intake and body composition one year after bariatric surgery
Reduction in fat mass and fat free mass have been observed with weight loss induced by surgery or dietary interventions. There are concerns that decrease in fat free mass have some negative health consequence. The aim of...
A Theoretical Study of Relationship between Liquidity, Corporate Governance, and Firm Value
A few experimental studies have been carried out about the relationship between liquidity, corporate governance, and the firm value. Nowadays, making a decision for determining the degree of cash reserves in companies ha...