Monitoring dust storms in drylands using GIS (Case study: Dust storm in Iran, July 2009)

  • سال انتشار: 1388
  • محل انتشار: همایش منطقه ای ژئوماتیک
  • کد COI اختصاصی: IIAUGEOMATIC01_020
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 2234
دانلود فایل این مقاله

نویسندگان

Reza Ghasemizadeh

Graduate Student of Environmental Engineering, Department of Civil Engineering, Sharif University of Technology

Hamed Taheri

Graduate Student of Water Engineering, Department of Civil Engineering, Isfahan University of Technology

چکیده

Dust storms are natural events that occur widely around the world in arid regions. They are a product of mass transportation of soil particles by wind and typically a form of dry deposition. Many researches has been made in the development of integrated dust storm monitoring and modeling systems by use of satellite image data, GIS and advanced numerical models. Iran has experienced a noticeable dust storm recently and this adds to its problems in air pollution. Wind-blown dust caused by sandstorms in neighboring Iraq affects major of activities in Tehran for days. Surrounding of the City by Alborz Mountains, relatively low wind velocities, and low precipitation are the main reasons that incredibly increase the effects of this natural disaster in Tehran. This paper presents a Geospatial Information System (GIS) based methodology to monitor the status of airborne particulate matter with an aerodynamic diameter of less than 10 μm (PM-10) emissions. Dust storm in Tehran, Iran is studied and its source and forming procedure and its impacts on urban management are illustrated. Temporal (Time series) data used here are gathered by Air Quality Control Company (AQCC) and from eight stations distributed throughout Tehran. First attempt is focused on identification of the main natural sources causing this phenomenon. Then the conceptual model for monitoring this hazard will be presented. In conclusion, the benefits of GIS in understanding and monitoring of hazard throughout the scope will be discussed.

کلیدواژه ها

PM-10, GIS, Disaster monitoring, Tehran air pollution, Dust storm

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.