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Türkiye'nin Karadeniz Bölgesindeki Meteorolojik Kuraklık Olaylarının Değerlendirilmesinde Bazı Spesifik Kuraklık İndekslerinin Kullanımı

Year 2022, Volume: 37 Issue: 2, 261 - 272, 30.12.2022

Omar Alsenjar Hakan Aksu Mahmut Çetin

Abstract

Bu çalışmada, yağış ve sıcaklık veri serileri kullanılarak -üç ay zaman ölçeğinde- kuraklık karakterizasyonu için Standardize Yağış İndeksi (SPI) ve Standardize Yağış Evapotranspirasyon İndeksi (SPEI) kullanılmıştır. Ayrıca, Türkiye'nin Karadeniz bölgesinde yer alan yirmi meteoroloji istasyonu için SPEI ve SPI arasındaki korelasyon katsayıları hesaplanmış ve kuraklık indekslerinin “temsil edebilirlikleri” değerlendirilmiştir. SPEI ve SPI arasında oldukça güçlü bir korelasyon bulunmuştur. Korelasyon katsayısı, kıyı bölgelerinde 0.93'e eşit veya daha büyüktür; korelasyon, iç kesimlere gidildikçe göreceli azalmıştır. Deniz kenarında bulunan Rize istasyonu için en yüksek korelasyon (r=0.98) ve denizden uzak ve iç bölgede yer alan Gümüşhane istasyon için en düşük korelasyon (r=0.82) bulunmuştur. Araştırma sonuçları, kuraklık indeksleri seçiminde veri mevcudiyetinin ve bölgenin kendine özgü iklim koşullarının dikkate alınmasının önem arz ettiğini göstermiştir.

Keywords

Kuraklık Standardize Yağış İndeksi (SPI) Standardize Yağış Evapotranspirasyon İndeksi (SPEI) Karadeniz Bölgesi

References

  • Abramowitz, M., Stegun, A. (1965). Handbook of mathematical formulas, graphs, and mathematical tables. Dover Publications Inc, New York.
  • Aksoy, H., Cetin, M., Eris, E., Burgan, H.I, Cavus, Y., Yildirim, I., Sivapalan, M. (2021). Critical drought intensity-duration-frequency curves based on total probability theorem-coupled frequency analysis, Hydrological Sciences Journal, DOI: 10.1080/02626667.2021.1934473.
  • Aksu, H., Cavus, Y., Aksoy, H., Akgul, M.A, Turker, S., Eris, E. (2022). Spatiotemporal analysis of drought by CHIRPS precipitation estimates. Theor Appl Climatol. https://doi.org/10.1007/s00704-022-03960-6.
  • Aksu, H., Cetin, M., Aksoy, H., Alsenjar, O., Yildirim, I., Yaldız, S.G. (2021). Climate change-induced variabilities in climate extremes on the Black Sea region of Turkey. In: 55th Canadian Meteorological and Oceanographic Society (CMOS) Congress, Canada.

The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey

Year 2022, Volume: 37 Issue: 2, 261 - 272, 30.12.2022

Omar Alsenjar Hakan Aksu Mahmut Çetin

Abstract

In this study, Standardized Precipitation Index (SPI) and the Standardized Precipitation Evapotranspiration Index (SPEI) were employed for drought characterisation by using precipitation, and precipitation and temperature data series, respectively, at a 3-month timescale. In addition, correlation coefficients between SPEI and SPI were calculated for twenty meteorological stations located over the Black Sea region of Turkey and were assessed to decide the representative nature of drought indices. Results showed that there is a remarkably strong correlation between SPEI and SPI. The correlation coefficient is equal to or greater than 0.93 in coastal areas, but a gradual decrease in relatively dry zones. The highest and lowest correlations were found to be 0.98 and 0.82 for Rize station located by the sea and Gümüshane station away from the sea, i.e., in the inland region, respectively. Research results suggested that data availability and the site-specific conditions of the region should be taken into account when using indices. 

Keywords

Drought Standardized Precipitation Index (SPI) Standardized Precipitation Evapotranspiration Index (SPEI) Black Sea Region

References

  • Abramowitz, M., Stegun, A. (1965). Handbook of mathematical formulas, graphs, and mathematical tables. Dover Publications Inc, New York.
  • Aksoy, H., Cetin, M., Eris, E., Burgan, H.I, Cavus, Y., Yildirim, I., Sivapalan, M. (2021). Critical drought intensity-duration-frequency curves based on total probability theorem-coupled frequency analysis, Hydrological Sciences Journal, DOI: 10.1080/02626667.2021.1934473.
  • Aksu, H., Cavus, Y., Aksoy, H., Akgul, M.A, Turker, S., Eris, E. (2022). Spatiotemporal analysis of drought by CHIRPS precipitation estimates. Theor Appl Climatol. https://doi.org/10.1007/s00704-022-03960-6.
  • Aksu, H., Cetin, M., Aksoy, H., Alsenjar, O., Yildirim, I., Yaldız, S.G. (2021). Climate change-induced variabilities in climate extremes on the Black Sea region of Turkey. In: 55th Canadian Meteorological and Oceanographic Society (CMOS) Congress, Canada.
There are 4 citations in total.

Details

Primary Language English
Subjects Environmental Sciences
Journal Section Research Article
Authors

Omar Alsenjar 0000-0001-9471-794X

Hakan Aksu 0000-0003-4686-7446

Mahmut Çetin 0000-0001-5751-0958

Publication Date December 30, 2022
Published in Issue Year 2022 Volume: 37 Issue: 2

Cite

APA Alsenjar, O., Aksu, H., & Çetin, M. (2022). The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey. Çukurova Tarım Ve Gıda Bilimleri Dergisi, 37(2), 261-272.
AMA Alsenjar O, Aksu H, Çetin M. The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey. Çukurova J. Agric. Food. Sciences. December 2022;37(2):261-272.
Chicago Alsenjar, Omar, Hakan Aksu, and Mahmut Çetin. “The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey”. Çukurova Tarım Ve Gıda Bilimleri Dergisi 37, no. 2 (December 2022): 261-72.
EndNote Alsenjar O, Aksu H, Çetin M (December 1, 2022) The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey. Çukurova Tarım ve Gıda Bilimleri Dergisi 37 2 261–272.
IEEE O. Alsenjar, H. Aksu, and M. Çetin, “The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey”, Çukurova J. Agric. Food. Sciences, vol. 37, no. 2, pp. 261–272, 2022.
ISNAD Alsenjar, Omar et al. “The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey”. Çukurova Tarım ve Gıda Bilimleri Dergisi 37/2 (December 2022), 261-272.
JAMA Alsenjar O, Aksu H, Çetin M. The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey. Çukurova J. Agric. Food. Sciences. 2022;37:261–272.
MLA Alsenjar, Omar et al. “The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey”. Çukurova Tarım Ve Gıda Bilimleri Dergisi, vol. 37, no. 2, 2022, pp. 261-72.
Vancouver Alsenjar O, Aksu H, Çetin M. The Use of Some Specific Drought Indices to Evaluate Meteorological Drought Events in the Black Sea Region of Turkey. Çukurova J. Agric. Food. Sciences. 2022;37(2):261-72.
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