[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 4, Issue 47 (12-2014) ::
جغرافیایی 2014, 4(47): 1-17 Back to browse issues page
Time Series Analysis of Rainfall in The Khoi Meteorology Station
Abstract:   (6896 Views)
Abstract Precipitation is one of the key elements in the climate of each region. Decrease or increase precipitation, climate and environmental phenomena that impress. Direct effects of climate on human life are significant. Statistical techniques, a useful tool for predicting the behavior of the climate variables. In this study, using statistical methods, precipitation behavior is analyzed in Khoi meteorological station. For this purpose, statistical data of annual average Precipitation during the period 960- 2011 have been used. In this study with Using the methods Pearson, Spearman and man-Kendal, have been attempted to investigate the precipitation trend. The results of these methods show significant decreasing trend in annual rainfall in the Khoi meteorological station. By applying a spectral analysis method based on precipitation data, its full cycle, were evaluated. The results of spectral analysis showed that the 95% confidence level, the first harmonic was significant. Finally the arima model to predict annual precipitation in the Khoi metorological station is used. In this way, four basic models were fitted. Goodness of fit tests, including tests of coefficients, remained independent test of the model, using Akaike and prediction model, indicates that between the four models fitted ,arima model (1, 1, 0) is the best fitted to annual precipitation. Based on this model, Khoi meteorological station annual precipitation, with 95 percent, by 2016 AD, was predicted.
Keywords: Keywords: Trend, Spectral Analysis, ARIMA Model, Khoi Station.
Full-Text [PDF 456 kb]   (5117 Downloads)    
Type of Study: Research | Subject: Special
Received: 2014/12/4 | Accepted: 2014/12/4 | Published: 2014/12/4
Add your comments about this article
Your username or Email:

CAPTCHA


XML   Persian Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Time Series Analysis of Rainfall in The Khoi Meteorology Station . جغرافیایی. 2014; 4 (47) :1-17
URL: http://geographical-space.iau-ahar.ac.ir/article-1-1283-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 4, Issue 47 (12-2014) Back to browse issues page
فضای جغرافیایی Geographic Space
Persian site map - English site map - Created in 0.15 seconds with 30 queries by YEKTAWEB 4331