Trend Analysis of Streamflows at Some Gauging Stations Over the Kizilirmak River

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AY M., Kisi O.

TEKNIK DERGI, cilt.28, sa.2, ss.7779-7794, 2017 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 28 Sayı: 2
  • Basım Tarihi: 2017
  • Doi Numarası: 10.18400/tekderg.304034
  • Dergi Adı: TEKNIK DERGI
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.7779-7794
  • Anahtar Kelimeler: Streamflow, Mann-Kendall test, sen trend test, Turkey, NONPARAMETRIC-TESTS, MANN-KENDALL, RAINFALL
  • Yozgat Bozok Üniversitesi Adresli: Evet

Özet

In this study, a new trend method recently proposed by Sen is used for monthly streamflow data of four different stations, Sefaatli, Kuylus, Salur Bridge and Bulakbasi, selected from the Kizilirmak Basin in Turkey. The Mann-Kendall trend test is also applied to the same data, and the results are discussed. According to the Mann-Kendall test, a significantly decreasing trend is found for the Sefaatli and Salur Bridge stations while there is no trend in the Kuylus and Bulakbasi stations at a significant level of 95%. Different trends are found for the low, medium and high streamflows of each station in view of the Sen trend test. As a result, it can be said that the proposed new method of Sen can identify the trends of low, medium, and high streamflows.