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DOI | 10.1007/s13762-018-1664-4 |
Investigating the trend of average changes of annual temperatures in Iran | |
Mahmoudi, P.1; Mohammadi, M.2; Daneshmand, H.3 | |
发表日期 | 2019 |
ISSN | 1735-1472 |
EISSN | 1735-2630 |
卷号 | 16期号:2页码:1079-1092 |
英文摘要 | Temperature is one of the key elements of climate formation and its changes can alter the climate structure of each region. To study the trend of temperature changes in Iran, the data from the three variables of average minimum temperature, average maximum temperature and average annual temperature of 43 synoptic stations were obtained from the Iranian Meteorological Organization for a 48-year statistical period (1966-2016). Moreover, in order to detect the trend of average changes of minimum, maximum and annual temperatures, fuzzy possibilistic regression and classical linear regression models were used. The comparison of the results of the slope of the change trend obtained from the two models clearly showed that, in most cases, the fuzzy possibilistic regression shows the slope of the change trend more than the classical linear regression. The statistics of root-mean-square error also showed that the function of classical linear regression was much better than fuzzy possibilistic regression. Therefore, based on the results of classical linear regression, the maximum amount of the average change trend of maximum annual temperatures of Iran is first observed in the west and northwest, and then in the northeastern of Iran. However, the average trend of minimum annual temperatures in Iran has shown more different spatial configurations than the average of maximum annual temperatures in Iran, with the highest rates of change in the east half, especially in the northeast. Finally, based on the classical linear regression model, it was observed that in the whole study period, 1.40 degrees C has been added to the average of maximum annual temperatures and 1.68 degrees C to the average of minimum annual temperatures in Iran. |
WOS研究方向 | Environmental Sciences & Ecology |
来源期刊 | INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/92975 |
作者单位 | 1.Univ Sistan & Baluchestan, Fac Geog & Environm Planning, Dept Phys Geog, Zahedan 9816745639, Iran; 2.Semnan Univ, Dept Water Engn & Hydraul Struct, Fac Civil Engn, Semnan, Iran; 3.Univ Sistan & Baluchestan, Dept Phys, Fac Sci, Zahedan, Iran |
推荐引用方式 GB/T 7714 | Mahmoudi, P.,Mohammadi, M.,Daneshmand, H.. Investigating the trend of average changes of annual temperatures in Iran[J],2019,16(2):1079-1092. |
APA | Mahmoudi, P.,Mohammadi, M.,&Daneshmand, H..(2019).Investigating the trend of average changes of annual temperatures in Iran.INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY,16(2),1079-1092. |
MLA | Mahmoudi, P.,et al."Investigating the trend of average changes of annual temperatures in Iran".INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY 16.2(2019):1079-1092. |
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