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جغرافیا و برنامه ریزی محیطی، جلد ۲۶، شماره ۱، صفحات ۱۴۹-۱۵۶
عنوان فارسی مقایسه مدل‌های تصمیم‌گیری تاپسیس و تحلیل سلسه‌مراتبی در پتانسیل‌یابی منابع آب زیرزمینی حوضه دشت یزد – اردکان در محیط GIS
چکیده فارسی مقاله چکیده محدودیت منابع آب و توزیع فصلی نامناسب بارندگی در کشور نشان می‌دهد که ابتدا باید ظرفیت منابع آب‌های موجود سطحی و زیرزمینی را به خوبی شناسایی و مطالعه کرد تا برنامه‌ریزی جامعی برای بهره‌برداری صحیح از آن‌ها صورت گیرد. علاوه بر لزوم اشاعه رویه‌های مرسوم و مطلوب در برنامه‌ریزی و مدیریت منابع آب، بهره‌گیری از فناوری‌های جدید مانند مدل‌سازی در سیستم‌ اطلاعات جغرافیایی و پردازش داده‌های ماهواره‌های با توجه به خصوصیاتی مانند سرعت و دقت بالا و دید وسیع و یکپارچه، می‌تواند به‌عنوان ابزاری مناسب در اکتشاف منابع آبی با توجه به هزینه‌های بالای روش‌های سنتی مطرح گردد. در این پژوهش ابتدا عوامل طبیعی مؤثر در ایجاد مکان‌های احتمالی ذخایر آب زیرزمینی تعیین شد. سپس این عوامل در قالب فنون تصمیم‌گیری چند معیاره، تحلیل‌سلسله‌مراتبی، و تاپسیس، و به کمک سیستم اطلاعات جغرافیایی، مدل‌سازی شدند. همچنین به‌منظور بررسی دقت این مدل‌ها، زون‌های با پتانسیل آب زیرزمینی که از هر مدل استخراج شده با موقعیت مکانی منابع آب زیرزمینی موجود مقایسه و ارزیابی شد. نتایج نشان داد که روش تحلیل سلسله‌مراتبی با دقت 6/61 درصد، نسبت به روش تاپسیس منابع آب زیرزمینی موجود را بهتر شناسایی کرده است.
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عنوان انگلیسی
چکیده انگلیسی مقاله Introduction Groundwater resources due to higher reliability and lower volatility as an option to secure long been used by humans and In recent decades due to harvest more than feeding the reduced quantity and quality have been met. Management and curb these problems through the exploration and exploitation of the potential corresponding to a selected one of the strategies in this area. Basically, the traditional methods of hand to identify potential groundwater used, Often need to spend a lot of time, money and manpower And due to the lack of digital data, provided an update to the database is not possible. The purpose of this study is that the use of AHP and TOPSIS decision model and with the help of geographic information systems (GIS) are possible locations of underground water reserves set then the performance of each of these models to estimate the reserves of underground water resources are evaluated by comparison with. Materials and methods The main criteria that can be used in the development and movement of groundwater in different situations are involved: Geomorphological, geological, hydrological, topographical, climatic and land use. The most important criterion geomorphological topics affecting or changing the water into three regions, hilly and mountainous lands were divided. Geological factors affecting water resources were divided into two groups, lithology and tectonics. Lithology into four formations of coarse, medium grain formation, fine-grained , formations and igneous formations were formed. The tectonic lineaments extracted including fractures and cracks of geological maps and satellite images were interpreted. The hydrological criteria related to the quality and quantity of groundwater drainage basin drainage was used to determine the density map. The most important criterion affecting groundwater resources steep topography that was produced on the basis of slope classes map. Climate measures affecting the groundwater resources rainfall maps for rainfall, long-term meteorological data were used Basin. On the other hand, there are various coatings and its effect on increasing or decreasing the amount of groundwater flooding is. Groundwater resources as well as data modeling was used to evaluate the results. Analytic hierarchy process method (AHP) includes the following main steps: 1- Preparation of comparison matrix at each level of the hierarchy that starts from the top and goes down. 2- Calculate the weight of each element of the hierarchy. 3- Estimates of agreement. Weighting of the criteria are based on judgments of decision makers. By increasing or decreasing the amplitude of the weight of each criterion can be arbitrary small or large. The weights are equal so that the compilation will be normal. TOPSIS algorithm is a decision-making method is a powerful technique for prioritizing options and the like are the ideal answer. The ideal option is to have the shortest distance from the positive and negative on the other hand has the greatest distance from the ideal. Discussion The Analytical Hierarchy Process After determining the weights for routing water potential maps all the weights and measures the impact of each criterion was weighted map. Finally, the weight of each criterion according to the final map was calculated potential water sources that Four classes of potential low, medium potential, good potential and high potential classified. The TOPSIS method and algorithm for finding potential maps due to the large volume of raster maps produced as well as the lack of necessary software, the code in Matlab software was used. Conclusion By examining the results of applying the model on four selected criteria, see In order Analytical Hierarchy Process 69.5 percent and TOPSIS 36.4 percent of good and high-potential areas of groundwater resources have separate. From this perspective hierarchical analysis method is more efficient than the potential issue of groundwater resources. Classes in the two models used to study it can be concluded map of potential groundwater resources are provided access to the highest hierarchical coordination and similarity analysis with the existing water resources so that nearly 70% of the area under study has the potential groundwater were detected that In this area there are more than 60% groundwater resource. Note that this method of determining the potential of a basin of water resources is one of the new technologies an appropriate strategy in promoting traditional ways of reducing the costs of its accrued.
کلیدواژه‌های انگلیسی مقاله Groundwater, AHP, TOPSIS, GIS, Potential navigation
نویسندگان مقاله مهدی مفیدیفر | مفیدیفر


مهدی اصلاح |


علی حسن آبادی |


نشانی اینترنتی http://gep.ui.ac.ir/article_18714_e8baf08ede6b6818791570e18e936001.pdf
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