واکاوی تغییر و تحولات پهنه‌های آبی با استفاده از گوگل ارث انجین (نمونه موردی: شهرستان آبادان)

نویسندگان
زینب حمید 1
مریم ایلانلو 2
1 گروه جغرافیا، واحد ماهشهر، دانشگاه آزاد اسلامی، ماهشهر، ایران
2 استادیارگروه جغرافیا، واحد ماهشهر، دانشگاه آزاد اسلامی، ماهشهر، ایران
10.22034/wmji.2024.2028703.1068
چکیده
در دهه‌های اخیر، بررسی تغییرات و نوسانات بستر رودخانه‌ها به‌منظور حفاظت از آن‌ها به لحاظ اهمیت و موقعیت این مجموعه‌های آبی با استفاده از سامانه گوگل ارث انجین جایگاه ویژه‌ای پیداکرده است. از کاربردهــای گــوگل ارث انجیــن می‌تــوان بــه (پایــش پوشــش گیاهــی، تولیــد نقشــه مراتــع و پایـش آن، تولیـد نقشـه نـوع کشـت، تولیـد نقشـه کاربـری اراضـی، تولیـد نقشـه سـیل، تولیـد نقشـه پیش‌بینی سـیل، تولیـد نقشـه خشک‌سالی، تولیـد نقشــه جزیــره حرارتــی شــهری، تولیــد نقشــه تــالاب‌هــا و تولیــد نقشــه پهنه‌های آبی) اشــاره کــرد. در این پژوهش از گوگل ارث انجین برای تهیه نقشه پهنه‌های آبی در شهرستان آبادان بری اولین بار استفاده‌شده است. برای این کار از تصاویر رایگان لندست از سال ۱۹۸۴ تا ۲۰۲۱ استفاده گردید. باند Transition که مناطق آبی به ۱۱ کلاس طبقه‌بندی نموده. نتایج پژوهش نشان داد بیش‌ترین مساحت را کلاس بدون تغییر دارد؛ و بعدازآن به ترتیب کلاس فصلی جدید، دائمی، فصلی و زودگذر بیش‌ترین مساحت را دارا می‌باشند. مساحت کلاس‌ها بدون تغییر ۱۳۰۰ مترمربع، دائمی ۲۱۰۰ مترمربع، دائمی جدید ۱۰۴ مترمربع، دائمی از بین رفته ۹۲ مترمربع، فصلی ۱۹۳۲ مترمربع، فصلی جدید ۳۸۲۳ مترمربع، فصلی از بین رفته ۹۹ مترمربع، فصلی به دائمی ۹۱ مترمربع، دائمی به فصلی ۸۳ مترمربع، دائمی زودگذر ۷۸ مترمربع و زودگذر ۱۲۸۳ مترمربع می‌باشد.
کلیدواژه‌ها
پهنه‌های آبی
تحولات
شهرستان آبادان
گوگل ارث انجین

عنوان مقاله English

Analyzing the changes and evolutions of blue areas using Google Earth Engine (case study: Abadan city)

نویسندگان English

zinab hamid 1
maryam ilanloo 2
1 Master's student, Department of Geography, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran,
2 Assistant Professor, Department of Geography, Mahshahr Branch, Islamic Azad University, Mahshahr, Iran,
چکیده English

 In recent decades, investigating the changes and fluctuations of river beds in order to protect them in terms of the importance and location of these water bodies using Google Earth Engine software has found a special place. Among the applications of Google Earth Engine, one can monitor plant cover, produce a map of pastures and monitor it, produce a map of crop types, produce a land use map, produce a flood map, produce a flood prediction map, produce a drought map, produce a map Urban heat island, map production Wetlands and producing a map of water areas. In this research, Google Earth Engine was used to prepare a map of water areas in Abadan city. For this, free Landsat images from 1984 to 2021 were used. The Transition band, which classifies water areas into 11 classes based on Table 1, was selected and the images were extracted based on this band. The results of the research showed that the class without change has the largest area. And after that, the new, permanent, seasonal, and ephemeral seasonal classes have the largest area. The area of the classrooms is unchanged 1300 square meters, permanent 2100 square meters, new permanent 104 square meters, permanent destroyed 92 square meters, seasonal 1932 square meters, new seasonal 3823 square meters, seasonal destroyed 99 square meters, seasonal to permanent 91 square meters, permanent to seasonal 83 square meters, temporary permanent 78 square meters and the fleet is 1283 square meters.

کلیدواژه‌ها English

BLUE areas
Google Earth Engine
Bahmanshir River
Abadan city
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