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Meteorological Drought Monitoring Using the Multivariate Index of SPEI (Case Study: Karun Basin) | ||
| AUT Journal of Civil Engineering | ||
| مقاله 8، دوره 3، شماره 1، شهریور 2019، صفحه 85-92 اصل مقاله (995.71 K) | ||
| نوع مقاله: Research Article | ||
| شناسه دیجیتال (DOI): 10.22060/ajce.2018.14740.5494 | ||
| نویسندگان | ||
| M. Saeidipour1؛ F. Radmanesh* 2؛ S. Eslamian3 | ||
| 1Department of Water Engineering, Shahid Chamran University, Ahvaz, Iran | ||
| 21 Department of Water Engineering, Shahid Chamran University, Ahvaz, Iran | ||
| 3Department of Water Engineering, Isfahan University of Technology (IUT), Iran | ||
| چکیده | ||
| Considering the importance of drought in water resources management, the present study was conducted with the aim of drought monitoring using drought index SPEI due to its multi-scale nature and the ability to analyze at different time scales in selected meteorological stations in the Karun drainage basin. Another purpose of this research is to regionalize the SPEI index using cluster analysis method in order to homogenize the hydrologic basin. In this regard, 18 stations were selected based on the data homogeneity test and the determination of the length of the common statistical period. The SPEI drought index values were plotted in the form of sequencing graphs and their relationship with the correlation analysis was tested. The results showed that there is a positive and significant correlation of this index for all stations (0.5 to 0.95). Also, the frequency of dry and wet periods decreases by increasing the time scale, but their continuity increases. With the regionalization of the basin stations by cluster analysis, the stations were classified into 7 classes. The results of regionalization of the SPEI index also showed that the frequency percentage of the normal class is higher than the wet and dry classes. | ||
| کلیدواژهها | ||
| Evapotranspiration؛ Dry and Wet Periods؛ SPEI Index؛ Basin Regionalization؛ Cluster Analysis | ||
| مراجع | ||
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[1] S. Golian, O. Mazdiyasni, A. AghaKouchak, Trends in meteorological and agricultural droughts in Iran, Theoretical and applied climatology, 119(3-4) (2015) 679-688. [2] M. Rebetez, H. Mayer, O. Dupont, D. Schindler, K. Gartner, J.P. Kropp, A. Menzel, Heat and drought 2003 in Europe: a climate synthesis, Annals of Forest Science, 63(6) (2006) 569-577.
[3] S.M. Vicente-Serrano, S. Beguería, J.I. López-Moreno, A multiscalar drought index sensitive to global warming: the standardized precipitation evapotranspiration index, Journal of climate, 23(7) (2010) 1696-1718.
[4] S. Tirivarombo, D. Hughes, Regional droughts and food security relationships in the Zambezi River Basin, Physics and Chemistry of the Earth, Parts A/B/C, 36(14-15) (2011) 977-983.
[5] M.K. Lweendo, B. Lu, M. Wang, H. Zhang, W. Xu, Characterization of Droughts in Humid Subtropical Region, Upper Kafue River Basin (Southern Africa), Water, 9(4) (2017) 242.
[6] S. Gurrapu, A. Chipanshi, D. Sauchyn, A. Howard, Comparison of the SPI and SPEI on predicting drought conditions and streamflow in the Canadian prairies, in: Proceedings of the 28th Conference on Hydrology, American Meteorological Society Atlanta, USA, 2014, pp. 2-6.
[7] S.M. Vicente-Serrano, G. Van der Schrier, S. Beguería, C. Azorin-Molina, J.-I. Lopez-Moreno, Contribution of precipitation and reference evapotranspiration to drought indices under different climates, Journal of Hydrology, 526 (2015) 42-54.
[8] S. Tirivarombo, D. Osupile, P. Eliasson, Drought monitoring and analysis: Standardised Precipitation Evapotranspiration Index (SPEI) and Standardised Precipitation Index (SPI), Physics and Chemistry of the Earth, Parts A/B/C, (2018).
[9] S. Beguería, S.M. Vicente Serrano, J.I. López-Moreno, M. Angulo-Martínez, A.M. El Kenawy, The SPEIbase: A new gridded product for the analysis of drought variability and drought impacts, (2010).
[10] L. Labudova, L. Schefczyk, G. Heinemann, The comparison of the SPI and the SPEI using COSMO model data in two selected Slovakian river basins, in: EGU General Assembly Conference Abstracts, 2014.
[11] T. Törnros, L. Menzel, Addressing drought conditions under current and future climates in the Jordan River region, Hydrology and Earth System Sciences, 18(1) (2014) 305-318.
[12] J.H. Stagge, L.M. Tallaksen, L. Gudmundsson, A.F. Van Loon, K. Stahl, Candidate distributions for climatological drought indices (SPI and SPEI), International Journal of Climatology, 35(13) (2015) 4027-4040.
[13] T. Mavromatis, Drought index evaluation for assessing future wheat production in Greece, International Journal of Climatology: A Journal of the Royal Meteorological Society, 27(7) (2007) 911-924. | ||
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