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Evaluation of the effects of precipitation and flow characteristics on suspended sediment transport in mountain-type Mediterranean climate; Korkuteli Stream sample, Antalya, Turkey
Arabian Journal of Geosciences Pub Date : 2021-09-23 , DOI: 10.1007/s12517-021-08458-5
Seçkin Çakmak 1 , Tuncer Demir 1 , Ergin Canpolat 2 , Ahmet Serdar Aytaç 3
Affiliation  

Amount and type of suspended sediments in streams can change over seasonal timescales and during high-flow events. The dynamics of the suspended sediment in the streams and rivers of the Mediterranean region of Turkey are not yet fully understood, as studies are limited. In this study, it is aimed to analyze the seasonal variation of suspended sediment transported over 12 months in the Korkuteli Stream to reveal the relationship between precipitation, flow, and suspended sediment. The water level of the stream recorded automatically every 10 min using an Immersion Type Level Transmitter and the water velocity were measured with a Universal Current Meter. The flow rate was estimated with a rating curve produced from the water velocity and cross-sectional data. US-DH48 depth integration sampler was used to take the suspended sediment samples and these samples analyzed in the laboratory. A significant relationship was found between flow and suspended sediment (R2: 0.97). The amount of suspended sediment increased significantly during high flow periods. Although most of the precipitation occur in winter months, the amount and rate of suspended sediment increase significantly during the shorter flood period in summer months (e.g., May and June) due to short-term heavy precipitation. During the measurement period, the total amount of transported suspended sediment was calculated as 47246 tons, of which approximately 87% (41106 tons) was transported largely in June.



中文翻译:

山地型地中海气候降水和水流特征对悬浮泥沙输移影响的评价;Korkuteli Stream 样本,土耳其安塔利亚

溪流中悬浮沉积物的数量和类型会随着季节时间尺度和高流量事件发生变化。由于研究有限,尚未完全了解土耳其地中海地区溪流和河流中悬浮沉积物的动态。本研究旨在分析科尔库特利溪流 12 个月内输送的悬浮泥沙的季节性变化,以揭示降水、流量与悬浮泥沙之间的关系。使用浸入式液位变送器每 10 分钟自动记录一次溪流的水位,并使用通用电流计测量水流速度。流速是通过由水速和横截面数据产生的额定曲线来估计的。US-DH48深度积分采样器用于采集悬浮沉积物样品,并在实验室对这些样品进行分析。在流量和悬浮泥沙之间发现了显着的关系(R 2:0.97)。高流量时期悬浮泥沙量显着增加。虽然大部分降水发生在冬季,但由于短期强降水,在夏季较短的洪水期(如 5 月和 6 月),悬浮泥沙的数量和速率显着增加。测量期间,计算输送的悬浮泥沙总量为47246吨,其中约87%(41106吨)主要在6月份输送。

更新日期:2021-09-24
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