Taşkınlar, can ve mal kayıplarına neden olan en yıkıcı doğal afetlerden biridir. Bu afetin zararlarını azaltmada en kritik adımlardan biri, taşkın koruma yapılarının doğru boyutlandırılmasıdır. Bu ise güvenilir taşkın tekerrür debisi tahminlerini gerekli kılmaktadır. Bu çalışmada, Ağrı ilinde yer alan ve altı su kaynağını içeren bir havzada, özellikle D21A141 Yapılıköy Akım Gözlem İstasyonu (AGİ) için dört farklı yöntemle taşkın tekerrür debileri hesaplanmış ve karşılaştırılmıştır. Kullanılan yöntemler; Noktasal Taşkın Frekans Analizi (FFA), Bölgesel Taşkın Frekans Analizi (RFFA), Mockus Yöntemi ve DSİ Sentetik Yöntemidir. RFFA’nın, yan havzalardan elde edilen verileri kullanarak daha dengeli ve güvenilir sonuçlar sağladığı gözlemlenmiştir. Sentetik yapıda olmalarına rağmen Mockus ve DSİ Sentetik yöntemleri, RFFA ile uyumlu sonuçlar vermiştir. Öte yandan FFA, özellikle uzun tekerrür sürelerinde düşük değerler üretmiştir. Elde edilen bulgular, taşkın riski altındaki bölgelerde mühendislik uygulamalarına katkı sunabileceği gibi, yerel yönetimlerin daha bilinçli kararlar almasına da destek olabilir. İklim değişikliği ve artan taşkın tehlikesi göz önünde bulundurulduğunda, bu tür analizlerin yaygınlaştırılması büyük önem taşımaktadır.
Taşkın tekerrür debisi Akım rejimi Bölgesel taşkın frekans analizi Tekerrür süresi Akım gözlem istasyonu Sentetik yöntemler
Floods are one of the most destructive natural disasters that cause loss of life and property. One of the most critical steps in mitigating the damages of this disaster is the correct sizing of flood protection structures. This requires reliable flood quantile estimates. In this study, flood repetition flows were calculated and compared with four different methods in a basin containing six water sources in Ağrı province, especially for D21A141 Yapılıköy Stream Gauging Station (SGS). The methods used are Flood Frequency Analysis (FFA), Regional Flood Frequency Analysis (RFFA), Mockus Method and DSİ Synthetic Method. It was observed that RFFA provides more reliable and balanced results by using data from the sub-basins. Despite its synthetic nature, Mockus and DSİ Synthetic methods yielded results consistent with RFFA. FFA, on the other hand, produced low values, especially at high return periods. The findings obtained can contribute to engineering practices in flood-prone areas and support local governments in making more informed decisions. Considering climate change and increasing flood hazard, it is of great importance to disseminate such analyses.
Flood quantile Flow regime Regional flood frequency analysis Return period Stream gauging station Synthetic methods
This article was produced within the scope of Ufuk KIZIL's master's thesis. The authors would like to thank Atatürk University Institute of Science.
| Primary Language | English |
|---|---|
| Subjects | Water Resources Engineering, Water Resources and Water Structures |
| Journal Section | Research Article |
| Authors | |
| Submission Date | June 14, 2025 |
| Acceptance Date | August 17, 2025 |
| Publication Date | August 30, 2025 |
| IZ | https://izlik.org/JA27ZG79BN |
| Published in Issue | Year 2025 Volume: 41 Issue: 2 |
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