Investigation of relationship between meteorological and hydrological drought in Karkheh watershed

Document Type : Research Article

Authors

1 MSc. Graduate of Agricultural Meteorology, Faculty of Desert Studies, Semnan University

2 Associate Professor, Department of Agricultural Meteorology, Faculty of Desert Studies, Semnan University

3 Assistant Professor, Department of agricultural Meteorology, Faculty of Natural Resources, Semnan University

Abstract

Drought is one of the natural disasters which is strongly influenced by climatic fluctuations and makes a set of complex problems in various parts. The current study aims for investigation of time relationship between meteorological and hydrological drought in Karkhe catchment. For this purpose, 26 rain gauge stations and 8 gauging stations were used. In part of research, for understanding delay trends in comparison with precipitation in reality, Pearson correlation coefficient between precipitation and discharge was calculated with different time delays. Two indices (SPI and SDI index) were selected for examining Meteorological drought and hydrological drought. Index values in short term step (1 to 3 months), medium-term (6 months) and long term (12 months) was calculated by DrinC software. The results showed that there is 99% direct significant correlation between precipitation-discharge and two SPI-SDI indices in four steps of time. However, the correlation coefficient is significant for any four time steps, but the value of correlation coefficient  has more delay time in a mood with no delay time compared to other cases. Therefore, we can conclude that drought occurs simultaneously in the catchment Karkhe meteorologically and hydrologically. Also, due to the lack of consistent correlation coefficients and delay time in both cases, two aforementioned indices properly show drought conditions.

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منابع
[1]. Mozafari Gh. Unconformity in meteorological ang hydrological drought in two neighboring basin at north montain slope of shirkoh yazd. Journal of spatial planning. 2006;10 (2): 173-190. [Persian].
[2]. Khazayi M, Telvari A. Hydrological drought frequency distribution analysis. Journal of Geography and Urban Development. 2003; (2): 45-56. [Persian].
[3]. Eivazi M, Mosaedi A. Monitoring and spatial analysis of meteorological drought in golestan province using geostatistical methods., Journal of range and watershed management, iranian journal of natural resources. 2011; 64: 65-78. [Persian].
[4]. Alavi Nia H, Sadatinejad j, Abdullah Kh. Provide a model for prediction of hydrological drought in Karoon-1 basin. Environmental Erosion Research Journal. 2011; (1): 45-56. [Persian].
[5]. Rzayyklantry d. Check meteorological and hydrological drought in East Mazandaran. Gorgan University of Agricultural Sciences and Natural Resources. 2011 Master thesis.
[6]. Eskandari Damaneh H, Zehtabian GH, Khosravi H, Azareh. Analysis of temporal and spatial relationship between meteorological and hydrological drought in Tehran province. Jurnal Management System. Winter 2016:113-120. [Persian].
[7]. Babaei H, Araghinejad SH, HorfarA. Time interval identification of the occurrences of meteorological and hydrological droughts in Zayandeh-Rud basin, Arid Biom Scientific and Research Journal, 2011; 1 (3): 1-12. [Persian].
[8]. Mofidipoor N, Brady Sheikh V, Ownegh M, Sydaldyn A. the analysis of relationship between meteorological and hydrological droughts in Atrak. Watershed jwmr. 2011; 3 (5): 16-26. [Persian].
[9]. Azareh A, Rahdari MR, Sardoii ER, & Moghadam,FA. Investigate the relationship between hydrological and meteorological droughts in Karaj dam basin. European Journal of Experimental Biology. 2014; 4(3): 102-107.
[10]. Soleimani Sardou F, Bahramand A. Hydrological drought analysis using SDI index in Halilrud basin of Iran. Environmental Resources Research.2014; 2(1): 47-56.
[11]. Vardipour A, Azarakhsh M., Mosaedi A, Farzadmehr J. The relationship between meteorological and hydrological droughts Mashhad plain. The National Conference of Sciences and Environment Engineering, June 2014. Ahvaz Province. [Persian].
[12]. Tigkas D, Vangelis H, Tsakiris G. Drought and climatic change impact on streamflow in small watersheds. Science of the Total Environment. 2012; 440: 33-41.
[13]. Zhiyong Wu, Yun Mao, Xiaoyan Li, Guihua Lu, Qingxia Lin and Huating Xu. Exploring spatiotemporal relationships among meteorological, agricultural, and hydrological droughts in Southwest China. Stochastic Environmental Research and Risk Assessment 2016;( 30.3): 1033-1044.
[14]. Christopher N, Awange J, Corner R, Kuhn M and Okwuashi O On the potentials of multiple climate variables in assessing the spatio-temporal characteristics of hydrological droughts over the Volta Basin." Science of The Total Environment 2016; (557): 819-837.
[15]. Ndehedehe CE, Awange JL, Corner R J, KuhnM, Okwuashi O. On the potentials of multiple climate variables in assessing the spatio-temporal characteristics of hydrological droughts over the Volta Basin. Science of The Total Environment. 2016; 557: 819-837.
[16]. Moradi H, Sepahvand A, Khazaee, M. Meteorological and hydrological drought monitoring using SPI index modified and SDI (Case Study of Khorramabad), 5th National Conference of Iran' Watershed. May 2009, Gorgan. [Persian].
[17]. Salajegh A, Razavizade S, Khorasani N, Hamidifar M, Salajegh S. Land use Changes and its Effects on Water Quality (Case study: Karkheh watershed), Journal of Environmental Studies. 37(58), 81-86.
[18]. GHasemi M, Eslamian S,Soltani S. Monitoring and regionalization of reteorological drought in karkhe watershed using standardized precipitation index and precipitation deciles. Journal of Wateter of Research in Agriculture. 2008; 8 (3):35-23.
[19]. Kazemzadeh M, Malekian A. Spatial characteristics and temporal trends of meteorological and hydrological droughts in northwestern Iran. Natural Hazards, 2016;(1): 191-210.
[20]. Mair A, Fares A. Influence of groundwater pumping and rainfall spatio-temporal variation on streamflow. Journal of Hydrology. 2010; 393(3): 287-308.
[21]. Karamoz M, Araghynejad Sh, Advanced Hydrology. Amir Kabir University Press, 2005.
[22]. Bazrafshan J.1381. A few examples of performance evaluation in different climates of Iran meteorological drought indices, Masters Meteorology, School of Agriculture, University of Tehran.
[23].Nalbantis I, Tsakiris G. Assessment of hydrological drought revisited. Water Resources Management. 2009; 23(5): 881-897.