Quality Control, Homogeneity Analysis, and Trends of Extreme Precipitation Indices in Northern Cyprus

ZAİFOĞLU H., AKINTUĞ B., YANMAZ A. M.

JOURNAL OF HYDROLOGIC ENGINEERING, cilt.22, sa.12, 2017 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 22 Sayı: 12
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1061/(asce)he.1943-5584.0001589
  • Dergi Adı: JOURNAL OF HYDROLOGIC ENGINEERING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Extreme precipitation indices, Mann-Kendall trend test, Sen's slope, Quality control, Homogeneity analysis, Northern Cyprus, DAILY TEMPERATURE, WEIGHTING METHODS, CLIMATE EXTREMES, RAINFALL, 20TH-CENTURY, ASSURANCE
  • Orta Doğu Teknik Üniversitesi Kuzey Kıbrıs Kampüsü Adresli: Evet

Özet

In this study, the annual and seasonal changes in extreme precipitation indices were investigated in Northern Cyprus by using the non-parametric Mann-Kendal trend test and Sen's slope estimator. To this end, quality control of data procedure including estimation of missing data, detection of unreasonable values, and outliers were applied to 36 daily precipitation series to identify different errors. In order to test the homogeneity of the daily series, a two-step approach with four homogeneity tests and overall classification were used. The investigation of trends for extreme precipitation indices indicated that the trends were mostly nonsignificant and increasing in scale annually. On seasonal scale, the percentage of stations with increasing trend was almost the same with the percentage of stations with decreasing trend in autumn and spring. Besides, the upward trend was observed at more than 77% of the stations in winter with 11% having significantly increasing trends. Generally, there was no spatial coherence as well as a mixed pattern of trends changing from station to station. (C) 2017 American Society of Civil Engineers.