Tele-connections of atmospheric oscillations on streamflow data in Turkey

IF 1.9 4区地球科学 Q3 METEOROLOGY & ATMOSPHERIC SCIENCES

Meteorology and Atmospheric Physics Pub Date : 2024-04-15 DOI:10.1007/s00703-024-01014-2

Emre Kebapcioğlu, Turgay Partal

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Abstract

The climate indices demonstrate temporal and spatial variability of large-scale ocean–atmosphere patterns. This study has been carried out to analyze the streamflow data in Turkey to understand the effects of climate indices such as the Southern Oscillation (SO), the North Atlantic Oscillation (NAO), and the Arctic Oscillation (AO). The periodical relationship of the streamflow data of Turkey over different atmospheric oscillations was investigated. For this purpose, the average annual and seasonal flows at the current 72 stations in other regions of Turkey have been studied. In this context, the correlation analysis determined the relationship between NAO, AO, SO indices, and stream-flows. Besides, the original observed data were separated into parts by discrete wavelet transform to obtain the periodic components. The correlations between the found periodical components and atmospheric indices were also examined. The correlations between the streamflow and the AO/NAO showed a strong negative relationship during the annual/winter and spring periods, especially in western Turkey. Besides, the periodic components showed us the multi-annual connections between the global indices and the streamflow data of Turkey.

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大气振荡对土耳其水流数据的远程连接

气候指数显示了大尺度海洋-大气模式的时空变异性。本研究分析了土耳其的流量数据，以了解南方涛动（SO）、北大西洋涛动（NAO）和北极涛动（AO）等气候指数的影响。研究了不同大气涛动下土耳其河水流量数据的周期关系。为此，对土耳其其他地区目前 72 个站点的年均流量和季节流量进行了研究。在此背景下，相关分析确定了西北环流、亚洲环流、南方环流指数与河流流量之间的关系。此外，还通过离散小波变换将原始观测数据分成若干部分，以获得周期成分。还研究了所发现的周期成分与大气指数之间的相关性。在全年/冬季和春季期间，特别是在土耳其西部，流量与 AO/NAO 之间的相关性显示出很强的负相关。此外，周期成分还向我们展示了全球指数与土耳其流量数据之间的多年度联系。

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来源期刊

Meteorology and Atmospheric Physics 地学-气象与大气科学

CiteScore

4.00

自引率

5.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Meteorology and Atmospheric Physics accepts original research papers for publication following the recommendations of a review panel. The emphasis lies with the following topic areas: - atmospheric dynamics and general circulation; - synoptic meteorology; - weather systems in specific regions, such as the tropics, the polar caps, the oceans; - atmospheric energetics; - numerical modeling and forecasting; - physical and chemical processes in the atmosphere, including radiation, optical effects, electricity, and atmospheric turbulence and transport processes; - mathematical and statistical techniques applied to meteorological data sets Meteorology and Atmospheric Physics discusses physical and chemical processes - in both clear and cloudy atmospheres - including radiation, optical and electrical effects, precipitation and cloud microphysics.