آشکارسازی تغییرات فیزیکی شهر با استفاده از تصاویر LandSatETM و مدل زنجیره‌ای MARKOV یک مطالعه در شهر اردبیل

نوع مقاله: مقاله علمی -پژوهشی

نویسندگان

1 کارشناسی ارشد معماری دانشگاه بین المللی امام خمینی (ره)، قزوین، ایران

2 دانشجوی دکترای جغرافیا و مدرس گروه جغرافیا و معماری، دانشگاه پیام نور تهران، ایران

3 کارشناس ارشد جغرافیا و برنامه‌ریزی شهری، دانشگاه گلستان، گرگان، ایران

4 استادیارگروه مهندسی محیط زیست دانشکده فنی و مهندسی، دانشگاه آزاد اسلامی، واحد تهران مرکزی، تهران، ایران

5 کارشناس ارشد معماری و عضو باشگاه پژوهشگران جوان، دانشگاه آزاد اسلامی علوم و تحقیقات، تهران، ایران

چکیده

    استفاده از تصاویر ماهواره­ای می­تواند ابزار بسیار مفیدی برای تشریح روابط متقابل بین محیط انسانی و محیط طبیعی برای کمک به تصمیم­گیری برنامه­ریزان در شرایط پیچیده باشد. فرآیند توسعه شهرها یکی از نیازهای اساسی در مدیریت و ارزیابی شهرها می­باشد. افزون بر میزان رشد شهرها، مطالعه میزان تغییرات و تخریب کاربری­ها در سال­های گذشته و پیش­بینی این تغییرات در سال­های آینده می­تواند در مدیریت و برنامه­ریزی صحیح برای حل مشکلات کنونی و برنامه­ریزی­های توسعه آینده کمک نماید. در همین راستا مقاله حاضر قصد دارد تا با استفاده از تصاویر ماهواره‌ای Landsat Tm سال 1368 و تصویر ماهواره‌ای LandSatETM سال 1390 به بررسی روند رشد فیزیکی و جهت گسترش شهر اردبیل بپردازد. این مطالعه منطبق با دوره قبل و بعد از مرکزیت سیاسی شهر اردبیل می­باشد. به همین منظور پس از پردازش تصاویر ماهواره‌ای، تصاویر با روش حداکثر احتمال طبقه بندی شدند و در نهایت در سیستم اطلاعات جغرافیایی (GIS) با اعمال تابع تغییرات، تغییرات کاربری بدست آمد. با توجه به بررسی­ها به عمل آمده نتیجه گیری شد که رشد فیزیکی شهر اردبیل بعد از مرکزیت سیاسی شتاب زیادی به خود گرفته است و در طی رشد فیزیکی شهر، زمین‌های زراعی اطراف شهر به زیر ساخت و ساز­های شهری رفته است.

کلیدواژه‌ها


عنوان مقاله [English]

Revealing the physical change of Ardebil City by using LandSat ETM images and MARKOV chain model

نویسندگان [English]

  • shima karimi 1
  • Mohammad Mirza Ali 2
  • Hossein Mosazadeh 3
  • Samira ghiasi 4
  • Omid Tabrizi 5
چکیده [English]

Abstract
The use of satellite imagery can be a very useful tool to describe the interrelationships between the human environment and the natural environment to help planners make decisions in complex situations. The process of urban development of cities is one of the basic needs in management and evaluation. In addition, amount of growth of cities, the study of changes amount and land use destruction in past years, and predict these changes in the coming years can help in the correct management and planning to solve the current problems and future development planning program. In this regard, this study tends to using Satellite imagery Landsat Tm in 1988 and Satellite imagery of LandSat ETM in 20011 to assess the physical growth and in order to expansion of Ardabil. This study is consistent with periods before and after political centrality of Ardabil. For this order after the satellite image processing, the images were classified using maximum likelihood method and finally in geographic information system (GIS) by applying changes function were obtain land use changes. According to the conducted investigations it was concluded that physical growth of Ardabil after the political centrality has taken great acceleration, and during the physical growth of the city, agricultural land around the city has gone under construction in the city.

کلیدواژه‌ها [English]

  • Key words: Physical growth
  • satellite images
  • land use changes
  • classification of satellite images
  • geographic information systems (GIS)

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