Yakup Darama

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Citation - WoS: 13
Citation - Scopus: 16
Determination of Sediment Deposition of Hasanlar Dam Using Bathymetric and Remote Sensing Studies
(Springer, 2019) Darama, Yakup; Selek, Zeliha; Selek, Bulent; Akgul, Mehmet Ali; Dagdeviren, Murat
Hasanlar Dam and Hydroelectric Power Plant are located on Kucuk Melen Creek in the Western Black Sea Basin of Turkey. The dam was constructed in 1974 to provide domestic water needs of the Duzce Province, to supply irrigation water need, to control and mitigate floods and to produce hydroelectric power. This dam has been subjected to severe sedimentation since its construction in 1974. Therefore, bathymetric field survey studies were conducted to determine storage loss in the Hasanlar Dam reservoir by sedimentation. Bathymetric survey data from the reservoir site of the Hasanlar Dam were obtained in 1979, 1999 and 2014. Analysis of the bathymetric data, GIS and remotes sensing techniques showed that storage loss in reservoir active volume between 1974 and 1999 was 24% and between 1974 and 2014 storage loss was 26%. Analysis of the bathymetric maps also showed that sediment accumulation is severe near and around the dam body and the spillway whose discharge capacity was decreased by sediment accumulation. This is extremely critical because the flood of May 1998 caused the high risk of collapse of dam due to reduced capacity of the spillway. Remote sensing technique was used to determine the future deposition of sediment in the reservoir. For this purpose, 35 points in the reservoir area were determined by comparing the relative water depths and actual water depths using satellite image of the bathymetry in July 2017 and Lake Observation Station. High correlation (R-2=0.833) was calculated by using logarithmic nonlinear regression analysis between actual and relative water depths for those 35 control points. The average of absolute values of differences between the estimated and actual water depths was found as 1.06m, and RMSE was calculated as 1.25m. This analysis shows that in the future, remote sensing data can be used in the studies of determining the depth of water and the total sediment thickness. In addition, the volume of the entire reservoir can be predicted by measuring the actual water depth only at those 35 control points without making a bathymetric map of the whole dam reservoir.
Uzaktan Algılama ve Cbs Tekniğini Kullanarak Irak'ın Al-muhammadi Vadisinde Yağmur Suyu Toplama Yapısının Yerinin Belirlenmesi
(2020) Khudhaır, Mohammed Abbas; Darama, Yakup; Sayl, Khamis Naba
Yağış, yarı kurak ve kurak bölgelerde su kıtlığı prsorununu azaltmada kilit bir kaynaktır. Yağmur suyunun toplanması, yağmur suyunun korunması için önemli bir araçtır. Yağmur suyu toplama yapısı için uygun bir yer, suyun mevcudiyetinin arttırılmasında ve su kaynakları planlamasının iyileştirilmesinde önemli bir rol oynamaktadır. Bu çalışmanın amacı, ArcGIS'te ModelBuilder ile oluşturulan uygunluk modelini kullanarak yağmur suyu toplama yapısı için doğru yerinin belirlenmesidir. Yağmur suyu toplama yapısının en uygun yerini belirlemek için çalışmada toprak yapısı, eğim, drenaj yoğunluğu, bitki örtüsü, yollara uzaklık ve akış derinliği olmak üzere altı tematik katman kullanılmıştır. Bu yöntem Irak'ın Al-Anbar eyaletinin El Muhammadi Vadisi'ne uygulanmıştır. Sonuçların analizinden, yağmur suyu toplama yapısının yeri için çalışma alanının %12 si uygun alan, %42 orta uygun alan ve %46 lık bölümününde uygun olamayan alanı temsil ettiğini belirlenmiştir. Bu çalışma, Coğrafi Bilgi Sistemlerinin geniş alanları taramak için esnek, uygun maliyetli ve zaman tasarrufu sağlaması açısında uygun bir araç olduğunu göstermiştir. Bu yöntemin uygulanması yamur suyu hasadı için yer seçiminde Bu planın uygulanması, yağmur suyu hasadının yer seçimi politika kabulüne dahil edilmelidir. Anahtar Kelimeler: Uzaktan Algılama, CBS, Yağmursuyu hasadı, Al-Muhammadi Vadisi

Journal	Count
Natural Hazards	2
Environmental Earth Sciences	1
Hydrological Research Letters	1
IOP Conference Series: Materials Science and Engineering -- 3rd International Conference on Sustainable Engineering Techniques, ICSET 2020 -- 15 April 2020 -- Baghdad, Vitrual -- 162233	1
Journal of Hydrologic Engineering	1

Darama, Yakup

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