HARRAN OVASI YERALTI SUYU POTANSİYELİ VE KALİTESİNİN CBS DESTEKLİ AHP VE TOPSİS YÖNTEMLERİYLE MODELLENMESİ

Yıl 2022, Cilt: 6 Sayı: 1, 31 - 41, 28.06.2022

Veysel Aslan Mehmet Yaşar Sepetçioğlu

Öz

Harran Ovası, içme suyu ihtiyacının tamamını ve sulama suyu ihtiyacının çoğunu çeşitli tarihlerde açılan kuyulardan ve yeraltı su kaynaklarından karşılamaktadır. Bu nedenle bu çalışmada Türkiye sınırları içerisinde yer alan yerleşim alanları ve ovalarda yeraltı suyu potansiyeli ve su kalitesinin belirlenmesi amacıyla ÇKKV, AHP, TOPSIS ve Coğrafi Bilgi Sistemi gibi yöntemler kullanılarak tematik haritalar ve model haritalar oluşturulmuştur. Harran ovası. Havza genelinde çalışmaya ilişkin veriler resmi kurumlardan ve faaliyet gösteren özel sondaj şirketlerinden elde edilmiştir. Çalışmanın ilk aşamasında, yeraltı suyu potansiyeli statik su seviyesi, dinamik su seviyesi, kuyu verimi ve yeraltı suyu derinlik haritaları ile modellenmiştir. Elde edilen tematik haritalar ile sığlık, derinlik ve verimlilik değerlerine göre yeniden sınıflandırılmıştır. Buna göre Harran havzasının önemli bir bölümünün yeraltı suyu potansiyelinin iyi olduğu, statik ve dinamik seviyelerinin sığ-normal seviyelerde olduğu tespit edilmiştir.

Anahtar Kelimeler

Harran Ovası, CBS, Arc Hydro Modülü, AHP, ANP, Havza Sınır Haritaları

MODELING OF GROUNDWATER POTENTIAL AND QUALITY OF HARRAN PLAIN BY GIS SUPPORTED AHP AND TOPSIS METHODS

Öz

Harran Plain supplies all of its drinking water needs and most of its irrigation water needs from wells and groundwater resources that were drilled at various dates. For this reason, in this study, thematic maps and model maps were created by using methods such as MCDM, AHP, TOPSIS and Geographic Information System in order to determine the groundwater potential and water quality in the settlement areas and plains located within the borders of the Harran plain. The data related to the study throughout the basin were obtained from official institutions and operating private drilling companies. In the first stage of the study, groundwater potential was modeled with static water level, dynamic water level, well efficiency and groundwater depth maps. With the obtained thematic maps, they were reclassified according to shallowness, depth and productivity values. Accordingly, it has been determined that the groundwater potential of a significant part of the Harran basin is good, and the static and dynamic levels are at shallow-normal levels.

Anahtar Kelimeler

Harran Plain, GIS, Arc Hydro Module, AHP, ANP, Basin Boundary Maps

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