Hydrological drought variability and its teleconnections with climate indices

被引:39
作者
Abdelkader, Mohamed [1 ]
Yerdelen, Cahit [2 ]
机构
[1] Stevens Inst Technol, Dept Civil Environm & Ocean Engn CEOE, Hoboken, NJ 07030 USA
[2] Ege Univ, Engn Fac, Dept Civil Engn, Izmir, Turkey
关键词
Drought variability; Wavelet analysis; Standardized streamflow index; Teleconnections; NORTH-ATLANTIC OSCILLATION; STREAMFLOW VARIABILITY; WAVELET TRANSFORM; TREND ANALYSIS; MISSING DATA; BASIN; HOMOGENEITY; PACIFIC; IMPACTS; TURKEY;
D O I
10.1016/j.jhydrol.2021.127290
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In this study, the spatial-temporal variability of hydrological drought in Meric Basin, Turkey, has been examined, and its relationship with global climate oscillations has been explored. Prior to drought analysis, streamflow data gaps were filled, and series homogeneity was examined. The standardized streamflow index (SSFI) was used to detect drought periods from monthly streamflow data of nine stations well spread over the study area. The hydrological drought intensity, magnitude, and duration were investigated using the SSFI time series. The drought variability was assessed by performing trend analysis and wavelet transforms. Trend analysis showed an increase in drought events in the Northern region and a decrease in the Southern region of the basin. Wavelet analysis reveals that the 4-10 year scales explicate the drought series pattern. The identification of climate patterns that are most associated with drought variability is performed via correlation analysis. The investigation showed that distinct climate patterns simultaneously influence drought events. Significantly, the influence of El Nino Southern Oscillation (ENSO), North Atlantic Oscillation (NAO), and Atlantic Multidecadal Oscillation (AMO) is notable. The analysis demonstrated a remarkable correlation between ENSO and SSFI series at the interannual scale (2-8 years). The obtained phase difference suggests that the maximum dry (wet) conditions coincide with La Nina (El Nino) events. In addition, positive NAO phases and negative AMO phases lead to drought occurrence.
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页数:14
相关论文
共 65 条
[1]  
[Anonymous], 2008, Book Lecture Notes in Computational Science and Enginee, DOI DOI 10.1007/978-3-540-73750-62
[2]   Modelling the water budget and the riverflows of the Maritsa basin in Bulgaria [J].
Artinyan, E. ;
Habets, F. ;
Noilhan, J. ;
Ledoux, E. ;
Dimitrov, D. ;
Martin, E. ;
Le Moigne, P. .
HYDROLOGY AND EARTH SYSTEM SCIENCES, 2008, 12 (01) :21-37
[3]  
Baddour O, 2007, 46 WCDMP WORLD MET O
[4]   Global changes of the water cycle intensity [J].
Bosilovich, MG ;
Schubert, SD ;
Walker, GK .
JOURNAL OF CLIMATE, 2005, 18 (10) :1591-1608
[5]   SOME METHODS FOR TESTING THE HOMOGENEITY OF RAINFALL RECORDS [J].
BUISHAND, TA .
JOURNAL OF HYDROLOGY, 1982, 58 (1-2) :11-27
[6]  
Canchala Teresita, 2020, Water, V12, DOI [10.3390/w12020526, 10.3390/w12071863]
[7]   Streamflow Variability in Colombian Pacific Basins and Their Teleconnections with Climate Indices [J].
Canchala, Teresita ;
Ceron, Wilmar Loaiza ;
Frances, Felix ;
Carvajal-Escobar, Yesid ;
Andreoli, Rita Valeria ;
Kayano, Mary Toshie ;
Alfonso-Morales, Wilfredo ;
Caicedo-Bravo, Eduardo ;
Ferreira de Souza, Rodrigo Augusto .
WATER, 2020, 12 (02)
[8]   Estimation of missing data of monthly rainfall in southwestern Colombia using artificial neural networks [J].
Canchala-Nastar, Teresita ;
Carvajal-Escobar, Yesid ;
Alfonso-Morales, Wilfredo ;
Loaiza Ceron, Wilmar ;
Caicedo, Eduardo .
DATA IN BRIEF, 2019, 26
[9]   The effects of Mediterranean oscillation on temperature and precipitation data in Turkey [J].
Cenk, Sezen ;
Turgay, Partal .
JOURNAL OF WATER AND CLIMATE CHANGE, 2020, 11 (03) :722-743
[10]   Impact of the North Atlantic Oscillation on Middle Eastern climate and streamflow [J].
Cullen, HM ;
Kaplan, A ;
Arkin, PA ;
Demenocal, PB .
CLIMATIC CHANGE, 2002, 55 (03) :315-338