评估气候变化对多时间尺度水质动态的影响:以伊朗赫勒河流域为例

IF 1.827 Q2 Earth and Planetary Sciences
Farhang Rahmani, Mohammad Hadi Fattahi
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引用次数: 0

摘要

本研究将多重分形趋势波动分析(MFDFA)与气候驱动的水质动力学相结合,评估了气候变化对伊朗赫勒河多时间尺度的影响。与传统的线性模型不同,该方法捕获了水质时间序列中的非线性、尺度相关行为。结果表明,气候变化显著改变了水质参数,其中镁元素表现出较高的敏感性,且变化显著,而酸度和钠元素保持相对稳定。该研究独特地识别了尺度特定的多重分形特征,如酸度(Δα = 1.27)和硫酸盐(Δα = 1.07),突出了它们在气候强迫下的可变性。与适合短期预测的线性模型相比,建议采用对极端波动敏感的非线性模型进行准确的中长期预测。这些发现将多重分形动力学与气候引起的水质变化联系起来,为特定区域的适应策略提供了框架。研究结果为面临极端气候的半干旱地区的可持续水资源管理提供了可行的见解,促进了对复杂的气候-河流相互作用的理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Evaluating climate change effects on water quality dynamics over multiple time scales: a case study of Iran’s Helle River basin

This study integrates multifractal detrended fluctuation analysis (MFDFA) with climate-driven water quality dynamics to assess climate change impacts on Iran’s Helle River across multiple timescales. Unlike traditional linear models, this approach captures nonlinear, scale-dependent behaviors in water quality time series. Results show that climate change significantly alters water quality parameters: magnesium displays high sensitivity with notable variations, while acidity and sodium remain relatively stable. The study uniquely identifies scale-specific multifractal signatures, such as acidity (Δα = 1.27) and sulfate (Δα = 1.07), highlighting their variability under climate forcing. Nonlinear models sensitive to extreme fluctuations are recommended for accurate medium- and long-term forecasting, contrasting with linear models suited for short-term predictions. These findings link multifractal dynamics to climate-induced water quality changes, offering a framework for region-specific adaptation strategies. The outcomes provide actionable insights for sustainable water management in semi-arid regions facing climate extremes, advancing the understanding of complex climate-river interactions.

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来源期刊
Arabian Journal of Geosciences
Arabian Journal of Geosciences GEOSCIENCES, MULTIDISCIPLINARY-
自引率
0.00%
发文量
1587
审稿时长
6.7 months
期刊介绍: The Arabian Journal of Geosciences is the official journal of the Saudi Society for Geosciences and publishes peer-reviewed original and review articles on the entire range of Earth Science themes, focused on, but not limited to, those that have regional significance to the Middle East and the Euro-Mediterranean Zone. Key topics therefore include; geology, hydrogeology, earth system science, petroleum sciences, geophysics, seismology and crustal structures, tectonics, sedimentology, palaeontology, metamorphic and igneous petrology, natural hazards, environmental sciences and sustainable development, geoarchaeology, geomorphology, paleo-environment studies, oceanography, atmospheric sciences, GIS and remote sensing, geodesy, mineralogy, volcanology, geochemistry and metallogenesis.
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