Trends of Standard Duration Maximum Precipitation Over the Last 30 Years in Kastamonu Province, Northern Turkey

Akçay F., Mete B., Kankal M., Bayram A.

15th Advances in Civil Engineering Congress, Gazimagusa, Kıbrıs (Kktc), 6 - 08 Eylül 2023, ss.406-416

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Gazimagusa
  • Basıldığı Ülke: Kıbrıs (Kktc)
  • Sayfa Sayıları: ss.406-416
  • Bursa Uludağ Üniversitesi Adresli: Evet

Özet

It is well-known that precipitation events may intensify due to climate

change, potentially affecting maximum precipitation values, essential for

hydrological design and water resources management applications. For this

reason, it is important to determine the changes in the maximum precipitation

series. Trend analyses were conducted using the Mann-Kendall (MK), innovative

trend analysis (ITA), and improved visualization of innovative trend analysis

(IV-ITA) methods to detect changes in maximum precipitation series from five

meteorological observation stations operated in Kastamonu Province, northern

Turkey, namely: İnebolu, Bozkurt, Devrekani, Kastamonu, and Tosya, being

vulnerable to floods. The data cover a period from 1989 to 2020, including 14

standard durations from 5 min to 24 hrs. Considering the MK test results, no

significant trend mainly was found. On the other hand, according to innovative

methods, increasing/decreasing trends were revealed, with a majority of

increases. The station operated in Bozkurt district, which has been very sensitive

to floods, showed increasing trends in short durations of precipitation and

decreasing trends in medium and long durations of precipitation.