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منابع طبیعی - GPS وكاربرد آن در منابع طبیعی و کشاورزی
منابع طبیعی
شنبه 7 بهمن 1391

GPS وكاربرد آن در منابع طبیعی و کشاورزی

شنبه 7 بهمن 1391

نوع مطلب :
نویسنده :مهدی صامتی




 

امروزه استفاده از اطلاعات ماهواره ای به منظور توسعه مدیریت در منابع طبیعی تجدید شونده در جهان بسیار رایج شده است و لزوم استفاده هر چه بهتر در این امر , استفاده مناسب و تطبیق تصاویر ماهواره ای با واقعیت زمینی است. در این زمینه برای انجام اعمال مختلف بر روی تصاویر ( تهیه نقشه تیپ در جنگل , ارزیابی مراتع , توپوگرافی و نقشه های تخصصی و ... )نیازمند تعیین دقیق محل نمونه های زمینی بر روی تصاویر ماهواره می باشد. سیستم جی پی اس و گیرنده های آن قدرت تعیین مختصات نقاط را از طریق برقراری ارتباط با ماهواره های مربوطه داراست و هر نمونه زمینی را در مقابل پیکسل مربوطه اش قرار می دهد. پس میتوان از آن برای تعیین مختصات پلات , ترانسکت یا سایت استفاده کرد. از کاربردهای دیگر GPS در منابع طبیعی می توان به مواردی مثل پیدا کردن پلات , نقاط کنترل زمینی , نمونه های تعلیمی , تصحیح هندسی تصاویر , پیاده کردن مسیر اشاره کرد.                         

 




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