The effect of climate change on stream basin hydrometeorological variables: The example of Dim Stream (Turkey)

IF 2.7 4区 环境科学与生态学 Q2 ECOLOGY Ecohydrology & Hydrobiology Pub Date : 2024-07-01 DOI:10.1016/j.ecohyd.2023.07.003
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Abstract

Climate change is causing serious problems in various economic sectors in particular involving water management. For this reason, it is extremely important to conduct research to identify climate change trends and better understand them. This study was carried out in the Dim Stream basin in the Western Mediterranean region (Turkey), which is particularly vulnerable to climate change. The study used flow data from two flow observation stations (FOS) and meteorological records such as wind speed, average flow, precipitation, temperature, evaporation, radiation, and relative humidity for 1984-2017. These data showed the changes between flow and hydrometeorological variables using linear regression analysis, coefficient of variation, t-test and correlation analysis. It has been determined that there has been a rapid decrease in the average flow of the FOS number 09-006 since 1995 and the average flow of the FOS number 09-013 since 1999. Also, it was demonstrated that the average relative humidity (RHave), average temperature (Tave), average precipitation (Pave), total precipitation (Pt) and maximum precipitation (Pmax) meteorological variables were most affected by climate change in the basin. Furthermore, it was found that the most changes were Qyave (67.60%), Tmin (48.23%), Pmax (36.43%), Pave (33.91%), Pt (33.90%), and RHave (2.63%) in FOS numbered 09-013. Moreover, it was concluded that climate change variability had developed trends towards a rapid decrease in the flow values at the flow observation stations in Dim Stream. These results show that plans and measures for the efficient and sustainable management of water resources in this region must be implemented immediately.

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气候变化对流域水文气象变量的影响:以迪姆溪(土耳其)为例
气候变化正在给各个经济部门带来严重问题,尤其是涉及水资源管理的问题。因此,开展研究以确定气候变化趋势并更好地了解这些趋势极为重要。这项研究是在西地中海地区(土耳其)的迪姆溪流域进行的,该流域特别容易受到气候变化的影响。研究使用了两个流量观测站(FOS)的流量数据和 1984-2017 年的气象记录,如风速、平均流量、降水、温度、蒸发、辐射和相对湿度。这些数据通过线性回归分析、变异系数、t 检验和相关分析,显示了流量与水文气象变量之间的变化。结果表明,自 1995 年以来,09-006 号观测站的平均流量急剧下降,自 1999 年以来,09-013 号观测站的平均流量也急剧下降。同时,研究还表明,该流域受气候变化影响最大的气象变量是平均相对湿度(RHave)、平均温度(Tave)、平均降水量(Pave)、总降水量(Pt)和最大降水量(Pmax)。此外,在编号为 09-013 的 FOS 中,变化最大的是 Qyave (67.60%)、Tmin (48.23%)、Pmax (36.43%)、Pave (33.91%)、Pt (33.90%) 和 RHave (2.63%)。此外,还得出结论认为,气候变化的变异性导致点溪流量观测站的流量值呈快速下降趋势。这些结果表明,必须立即实施有效和可持续管理该地区水资源的计划和措施。
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来源期刊
Ecohydrology & Hydrobiology
Ecohydrology & Hydrobiology Agricultural and Biological Sciences-Aquatic Science
CiteScore
5.40
自引率
3.80%
发文量
51
期刊介绍: Ecohydrology & Hydrobiology is an international journal that aims to advance ecohydrology as the study of the interplay between ecological and hydrological processes from molecular to river basin scales, and to promote its implementation as an integrative management tool to harmonize societal needs with biosphere potential.
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