波兰喀尔巴阡山脉水文干旱的时空变异

IF 2.3 4区环境科学与生态学 Q3 WATER RESOURCES

Journal Of Hydrology And Hydromechanics Pub Date : 2022-05-19 DOI:10.2478/johh-2022-0007

K. Baran-Gurgul

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引用次数: 5

摘要

摘要本研究的目的是评估控制波兰喀尔巴阡山脉上维斯瓦流域河流水文干旱的气候和地理因素。干旱是根据1975年至2019年间49个测量断面的日流量（基于协调世界时每天一次测量的水位）系列确定的。在波兰喀尔巴阡山脉确定了四个物理地理区域，并在这些区域内形成了基本干旱特征的空间变异性。这种空间分布被视为显示该地区干旱危险区的地图。此外，还进行了一项分析，以研究干旱开始和结束时间的季节性（均在多年期内）、干旱持续时间最长、多年期降雨量最高的干旱以及干旱天数。还分析了干旱天数的多年变化。结果表明，波兰喀尔巴阡山脉的干旱是夏季和秋季的特征，而塔特拉山脉和波德黑尔地区的干旱是秋季和冬季的特征。长期大量干旱的最大危害发生在波德哈勒地区和塔特拉山脉，而最小危害发生在Bieszczady山脉和研究区域的东部。

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The spatial and temporal variability of hydrological drought in the Polish Carpathians

Abstract The aim of the study was to evaluate the climate and geographic factors controlling the hydrological drought of the rivers located in the Upper Vistula catchment in the Polish Carpathians. Drought was identified based on the daily flow (based on water stage measered once a day at 6 UTC) series dating from between 1975 and 2019 at 49 gauging cross-sections. Four physico-geographical regions were identified in the Polish Carpathians and spatial variabilities of the basic drought characteristics were developed within these regions. Such spatial distributions were treated as maps indicating drought hazard areas in the region. In addition, an analysis was undertaken to study the seasonality of the start and end times of the drought (all in the multi-annual period), the longest duration of droughts, the droughts of the highest volume in multi-annual period, as well as the number of drought days. Multi-annual variability of the number of drought days was also analysed. The results suggest that droughts in the Polish Carpathians are events characteristic of summer and autumn, whereas in the Tatra Mountains and the Podhale region - of autumn and winter. The greatest hazard of a prolonged and high-volume drought occurs in the Podhale region and the Tatra Mountains, while the lowest hazard is observed in the Bieszczady Mountains and the eastern part of the studied area.

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来源期刊

Journal Of Hydrology And Hydromechanics 环境科学-水资源

CiteScore

4.20

自引率

5.30%

发文量

审稿时长

>12 weeks

期刊介绍： JOURNAL OF HYDROLOGY AND HYDROMECHANICS is an international open access journal for the basic disciplines of water sciences. The scope of hydrology is limited to biohydrology, catchment hydrology and vadose zone hydrology, primarily of temperate zone. The hydromechanics covers theoretical, experimental and computational hydraulics and fluid mechanics in various fields, two- and multiphase flows, including non-Newtonian flow, and new frontiers in hydraulics. The journal is published quarterly in English. The types of contribution include: research and review articles, short communications and technical notes. The articles have been thoroughly peer reviewed by international specialists and promoted to researchers working in the same field.