150-year daily data (1870–2021) in lakes and rivers reveals intensifying surface water warming and heatwaves in the Pannonian Ecoregion (Hungary)

IF 4.7 2区地球科学 Q1 WATER RESOURCES

Journal of Hydrology-Regional Studies Pub Date : 2024-10-02 DOI:10.1016/j.ejrh.2024.101985

Huan Li , Jiang Sun , Quan Zhou , Mariusz Sojka , Mariusz Ptak , Yi Luo , Sirui Wu , Senlin Zhu , Viktor R. Tóth

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引用次数: 0

Abstract

Study region

Pannonian Ecoregion, Hungary.

Study focus

Bridging the gap between atmospheric influences and aquatic environments, this study embarked on a comprehensive reconstruction of daily surface water temperatures across lakes and rivers within the Pannonian Ecoregion over an extensive period of 150 years (1870–2021).

New hydrological insights for the region

The analysis revealed a clear warming trend in waters over the past 150 years, and majority of this warming occurred in recent three to four decades (average warming rate: 0.317 °C/decade). Seasonal patterns indicated that winter and spring exhibited faster warming rates, followed by autumn and summer. There has been a significant increase in the number, duration, and intensity of heatwaves in both lakes and rivers, particularly pronounced in the last 30–40 years, and with the rise of air temperatures, river and lake heatwaves tend to intensity. These findings underscore the escalating impact of climate change on freshwater systems in the Pannonian Ecoregion, emphasizing the urgent need for mitigation measures. As the first study on river and lake heatwaves in Hungary and one of the few studies on river heatwaves worldwide, this study will provide reference for analysing extreme thermal events in aquatic systems.

查看原文本刊更多论文

湖泊和河流 150 年的每日数据（1870-2021 年）显示潘诺尼亚生态区（匈牙利）地表水变暖和热浪加剧

研究重点为了缩小大气影响和水生环境之间的差距，本研究开始全面重建潘诺尼亚生态区域内湖泊和河流在 150 年（1870-2021 年）内的每日地表水温度。分析显示，在过去的 150 年中，水域有明显的变暖趋势，其中大部分变暖发生在最近的三四十年间（平均变暖速度：0.317 °C/十年）。季节模式表明，冬季和春季的变暖速度较快，其次是秋季和夏季。湖泊和河流热浪的次数、持续时间和强度都显著增加，在过去 30-40 年间尤为明显。这些发现凸显了气候变化对潘诺尼亚生态区淡水系统的影响日益加剧，强调迫切需要采取缓解措施。作为匈牙利第一项关于河流和湖泊热浪的研究，也是全球为数不多的关于河流热浪的研究之一，这项研究将为分析水生系统中的极端热事件提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)

CiteScore

6.70

自引率

8.50%

发文量

284

审稿时长

60 days

期刊介绍： Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.