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Information Journal Paper

Title

Reanalyzing the Trend of Long-term Spatial Changes in the Minimum Temperature of Iran

Pages

  1-17

Abstract

 Today, climate change has become a major challenge for human societies. The widespread concern of environmental scientists and researchers about global warming has prompted them to study the time series of climatic parameters, especially temperature to reveal the trends of these parameters over the past few decades. Due to the importance of this issue, the present study was conducted to investigate the trend of spatial changes in the minimum temperature of Iran. In this regard, V20CR networked minimum temperature data with daily time resolution and 1 in 1 degree spatial resolution during the period 2019-1836 have been used. First, the trend of minimum temperature changes was calculated using Mann-Kendall test. Then, using spatial statistical methods such as global and local Moran index and hot spot analysis, the patterns governing Iran's minimum temperature and their dispersion were identified. The results of this study showed that in the cold months of the year the zone is trendless, while the decreasing trend is dominant in Iran in the warm months of the zone. An increasing trend has been observed in the southern regions and to some extent in the southeast of Iran. A declining trend occurred in northwestern Iran in January and is gradually spreading throughout Iran in other months. In May, it reaches its maximum expansion in Iran. According to the World Moran Index, the minimum temperature in Iran has a pleasant pattern. The local Moran index also showed that the northwest of Iran follows the pattern of low cluster and the southern regions of Iran follow the pattern of high cluster. The findings from Hot Spots indicate that the northwestern regions have cold-temperature spots (negative spatial autocorrelation) and the southern regions have hot-temperature spots (positive spatial autocorrelation).

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    • Cite

    APA: Copy

    FANAEI, RAZIEH, Ghavidel, Yousef, & FARAJZADEH, MANUCHEHR. (2022). Reanalyzing the Trend of Long-term Spatial Changes in the Minimum Temperature of Iran. GEOGRAPHY AND ENVIRONMENTAL SUSTAINABILITY, 11(41 ), 1-17. SID. https://sid.ir/paper/961186/en

    Vancouver: Copy

    FANAEI RAZIEH, Ghavidel Yousef, FARAJZADEH MANUCHEHR. Reanalyzing the Trend of Long-term Spatial Changes in the Minimum Temperature of Iran. GEOGRAPHY AND ENVIRONMENTAL SUSTAINABILITY[Internet]. 2022;11(41 ):1-17. Available from: https://sid.ir/paper/961186/en

    IEEE: Copy

    RAZIEH FANAEI, Yousef Ghavidel, and MANUCHEHR FARAJZADEH, “Reanalyzing the Trend of Long-term Spatial Changes in the Minimum Temperature of Iran,” GEOGRAPHY AND ENVIRONMENTAL SUSTAINABILITY, vol. 11, no. 41 , pp. 1–17, 2022, [Online]. Available: https://sid.ir/paper/961186/en

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