Taban Akışının Simbiyotik Arama Algoritması ile Tespit Edilmesi: Fırat Havzası Örneği

Year 2021, Volume: 3 Issue: 2, 169 - 183, 31.12.2021

Kemal Saplıoğlu Ramazan Acar

Abstract

Artan nüfus ve sanayileşme su kaynaklarının etkin bir biçimde kullanılmasını gerekli hale getirmektedir. Bu nedenle su kaynaklarını oluşturan parametrelerin doğru bir şekilde tespit edilerek projelendirilmesi önemlidir. Yüzeysel akışın yaklaşık %70’ini oluşturan taban akışı da bu parametrelerin başında gelmektedir. Literatürde taban akışının belirlenmesi ile ilgili pek çok çalışma mevcuttur. Bu çalışmada, literatürde mevcut Chapman yönteminin sabit katsayılı olması ile katsayının kalibre edilmesi arasındaki fark gösterilmiştir. Ayrıca Chapman formülünde yüzeysel akış ile taban akışının modeldeki etkisini belirleyen birbiri ile bağımlı katsayıların birbirinden bağımsız hale gelmesini sağlamak için bir yöntem önerilmiştir. Her iki model için de katsayıların kalibrasyonu için simbiyotik organizmalar arama algoritması (SOA) ile optimizasyonu gerçekleştirilmiştir. Elde edilen sonuçlara bakıldığında Chapman yöntemini baz alan çift parametreli ve SOA ile kalibre edilen metodun Chapman yöntemindeki hidrograftan uzaklaşma veya kurak dönemlerde yüzeysel akışla taban akışının birbirinden farklı olması problemini azalttığı gözlemlenmiştir. Model ile taban akışının hidrografı kesmemesi de sağlanmıştır.

Keywords

Taban akışı, Simbiyotik arama algoritması, Chapman yöntemi, Fırat havzası

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