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The variability of ice phenomena on the rivers of the Baltic coastal zone in the Northern Poland
Journal of Hydrology and Hydromechanics ( IF 2.3 ) Pub Date : 2020-03-01 , DOI: 10.2478/johh-2019-0025
Jan Tadeusz Łukaszewicz 1 , Renata Graf 1
Affiliation  

Abstract The main purpose of the research was to determine the conditions affecting ice phenomena, including the three-phase cycle of ice: expansion, retention and decay of the ice cover on selected rivers of the Baltic coastal zone in the Northern Poland (Przymorze region). The analysis has been elaborated for the years 1951–2010 against the backdrop of currently occurring climatic changes, with particular emphasis on the development and phase variability of the NAO. The article presents the impact of the variability in atmospheric circulation which has manifested in an increase in air temperature, over the last 20 years, on thermal conditions during winter periods in the South Baltic Coastal Strip. The increase in air temperature has contributed to an increase in the temperature of river waters, thus leading to a shortening of the duration of ice phenomena on rivers in the Przymorze region. The article also brings to light an increased occurrence of winter seasons classified as cool, and a disruption in the occurrence of periods classified as normal over the last 30 observed years. The research has demonstrated a significant dependence between the seasonal change in air temperature and the variability of thermal conditions of water, which has a direct impact on the variability of the icing cycle of rivers in the Przymorze region. The authors also show that the variability in forms of ice phenomena for individual river sections is determined by the local factors, i.e. anthropogenic activity, impact of urbanized areas or inflow of pollutants.

中文翻译:

波兰北部波罗的海沿岸地区河流冰现象的变化

摘要 本研究的主要目的是确定影响冰现象的条件,包括冰的三阶段循环:波兰北部波罗的海沿岸地区(Przymorze 地区)选定河流上冰盖的扩张、保持和衰减。 . 该分析是在当前发生的气候变化的背景下对 1951-2010 年进行的,特别强调了 NAO 的发展和阶段变化。本文介绍了过去 20 年来大气环流的变化对南波罗的海沿岸地区冬季热条件的影响,该变化表现为气温升高。气温升高导致河水温度升高,从而缩短了 Przymorze 地区河流上冰现象的持续时间。这篇文章还揭示了在过去 30 年观察到的年份中,归类为凉爽的冬季出现的次数增加,以及归类为正常时期的出现中断。研究表明,气温的季节性变化与水热条件的变化之间存在显着相关性,这对普日莫日地区河流结冰周期的变化有直接影响。作者还表明,各个河流断面冰现象形式的变化是由当地因素决定的,即人为活动、城市化地区的影响或污染物的流入。该文章还揭示了在过去 30 年观察到的年份中,被归类为凉爽的冬季出现的次数增加,以及被归类为正常时期的出现中断。研究表明,气温的季节性变化与水热条件的变化之间存在显着相关性,这对普日莫日地区河流结冰周期的变化有直接影响。作者还表明,各个河流断面冰现象形式的变化是由当地因素决定的,即人为活动、城市化地区的影响或污染物的流入。该文章还揭示了在过去 30 年观察到的年份中,被归类为凉爽的冬季出现的次数增加,以及被归类为正常时期的出现中断。研究表明,气温的季节性变化与水热条件的变化之间存在显着相关性,这对普日莫日地区河流结冰周期的变化有直接影响。作者还表明,各个河流断面冰现象形式的变化是由当地因素决定的,即人为活动、城市化地区的影响或污染物的流入。研究表明,气温的季节性变化与水热条件的变化之间存在显着相关性,这对普日莫日地区河流结冰周期的变化有直接影响。作者还表明,各个河流断面冰现象形式的变化是由当地因素决定的,即人为活动、城市化地区的影响或污染物的流入。研究表明,气温的季节性变化与水热条件的变化之间存在显着相关性,这对普日莫日地区河流结冰周期的变化有直接影响。作者还表明,各个河流断面冰现象形式的变化是由当地因素决定的,即人为活动、城市化地区的影响或污染物的流入。
更新日期:2020-03-01
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