مطالعه روند تغییرات دمای حداکثر در ایران مرکزی طی نیم قرن گذشته و رابطه آن با نوسان اقیانوس اطلس شمالی وجنوبی

نوع مقاله: مقاله علمی -پژوهشی

نویسندگان

1 گروه جغرافیا، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

2 گروه فیزیک، واحد نجف آباد، دانشگاه آزاد اسلامی، نجف آباد، ایران

چکیده

    هدف از این تحقیق، بررسی روند تغییرات دمای حداکثر در مناطق مرکزی ایران وتغییرات احتمالی آن از حالت نرمال با استفاده از آزمون ناپارامتری من-کندال ورابطه آن با پیوند از راه دور می‌باشد. مقطع زمانی مورد مطالعه در این بررسی یک دوره 46 ساله می‌باشد که از سال‌های 1965 تا 2010 را در بر می‌گیرد وبخشی از ایستگاه‌های مرکزی ایران شامل استان‌های اصفهان، یزد، سمنان، کرمان و اراک را به عنوان نمایندگان ایران مرکزی شامل می‌شود. روش مورد بررسی، توصیفی تحلیلی همراه با مطالعات کاربردی و ژرفانگر می‌باشد. ابتدا سعی شده است با استفاده از روش رتبه‌ای من- کندال تغییرات داده‌‌ها شناسایی شوند و سپس نوع و زمان آن مشخص گردد و سپس رابطه این تغییرات با نوسان‌های اقیانوس اطلس شمالی وجنوبی مشخص گردد. اکثر تغییرات در در دودهه 1960 و1970 رخ داده است. تمام تغییرات در تمام ایستگاه‌ها از نوع جهش و ناگهانی و از هیچ روندی تبعیت نمی‌کند وتغییرات اکثر ایستگاه‌ها در رابطه با نوسان‌های اطلس شمالی وجنوبی بوده است. 

کلیدواژه‌ها


عنوان مقاله [English]

The study trend of maximum temperature in central Iran during the past half century Its relationship with the North Atlantic Oscillation and South

نویسندگان [English]

  • Abdullah Khoshrou 1
  • Amir Gandomkar 1
  • Alireza Hajian 2
1 Dept. of Geography, Najafabad Branch, Islamic Azad University, Najafabad, Iran
2 Dept. of Physics, Najafabad Branch, Islamic Azad University, Najafabad, Iran
چکیده [English]

Abstract
    The purpose of this study was to evaluate the maximum temperature in the central region of the potential changes from normal mode using non-parametric mann-kendall distance relationship is the link. Point in this study is a 46-year period from 1965 to 2010 cover stations central part of Iran's isfahan, yazd, semnan, tehran and arak as representatives of central iran are included. The case study is a descriptive and applied studies and depth. I have tried using ratings - kendall changes identified and then type the appropriate time then the relationship between these changes and the north atlantic oscillation and south specified. Many changes have occurred in the two decades of the 1960s and 1970s. All changes in all sites of mutation and suddenly does not follow any trend changes in most of the stations on the nao's south.

کلیدواژه‌ها [English]

  • Keywords: climate change
  • maximum temperature
  • mann – kendall
  • remote connection
  • Central Iran

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