Rainfall and water conditions in  the region of the upper glacial in Europe

Szwejkowski, Z.; Dragańska, Ewa; Cymes, Iwona; Timofte, Cristina Maria; Suchecki, Stanisław; Craciun, Ioan

doi:10.26491/mhwm/65538

Cited by 4 publications

(4 citation statements)

References 11 publications

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“…These results are set in Table 1. More information can be found in the report by Szwejkowski et al (2017). The figures implicate that an average temperature increased every other decade, and the greatest increase occurred between the second and the third decade of the studied period.…”

Section: Research Resultsmentioning

confidence: 92%

Regional Climate Changes in North-Eastern Poland and Their Impact on Maize Crops

Kuchar¹,

Szwejkowski²,

Rychcik³

et al. 2021

ASP.FC

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Aim of the study. Indication of changes in maize yield for grain and silage in connection with the observed climate changes. Material and methods.Data from field experiments of the experimental station of the University of Warmia and Mazury since 1972 as well as meteorological data (air temperatures and precipitation). Calculations using the trend analysis of original variables and determined indexes (GDD, SPI, Sielianinov index), weather-yield linear models and elements of spectral analysis. Results and conclusions. Changes in thermal conditions were demonstrated based on average air temperatures and the GDD index. There were no significant changes in atmospheric precipitation, showing a small periodicity of ten years, and no changes in monthly frequency with a deficit of precipitation (SPI analysis). It was demonstrated that changes in thermal conditions as well as the introduction of new maize varieties over fifty years significantly improved plant maturation, which resulted in a significant increase in grain weight. However, this did not affect the yield of maize for silage, neither in crop rotation nor in the monoculture system.

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Section: Research Resultsmentioning

confidence: 92%

Regional Climate Changes in North-Eastern Poland and Their Impact on Maize Crops

Kuchar¹,

Szwejkowski²,

Rychcik³

et al. 2021

ASP.FC

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“…(DeCosmo et al 1996;Smith et al 1996). In this way, air continuously exchanges and equilibrates water vapor partial pressures and relative humidity acts as an interactive factor controlling both upward and downward directed water vapor fluxes (Kraus 1972;Yu 2007;Kolendowicz et al 2016;Szwejkowski et al 2017).…”

Section: Water Vapor Impact On Airborne Eddiesmentioning

confidence: 99%

Water Vapor Induced Airborne Rotational Features

Marks¹

2019

Meteorol. Hydrol. Water Manage.

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In order to study the rotational features induced by evaporating water several laboratory experiments were conducted with airborne rotary detection discs made of absorbent cotton wool and ultralight polyurethane foam discs.Measurements indicated that water vapor develops and transits into the air an upwardly directed counterclockwise rotary motion in the Northern Hemisphere, and a clockwise motion in the Southern Hemisphere. Additionally, measurements of the thermal structure of the air/water interface indicated that evaporating water may gather rotational momentum in the warmer subsurface layer. The conducted observations suggest that the process of water evaporation may be based on the grouping of some coherently spiraling molecules in the liquid phase. The interacting molecules combine their partial rotational momentums, thus allowing the top molecule to transit via the surface tension microlayer and become airborne. At the moment of evaporation, the gathered rotational energy is taken over by the free bi-hydrogen rotor-arm of the evaporating molecule that starts to revolve. Next, the water vapor-induced rotational share of the kinetic energy is likely to be redistributed among other gaseous molecules and transferred into heat (during condensation) that further energizes the airborne convective loops. In order to confirm the rotary effects induced by water vapor, several field experiments were conducted with airborne rotary detection ribbons in the Northern Hemisphere. The observations confirmed that a more enhanced counterclockwise spiraling motion of air is found with air currents under atmospheric lows of a higher relative humidity, while weaker and clockwise directed rotary dominates under atmospheric highs.

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“…An analysis of research papers on relationships between climate change and the runoff of mountain watersheds leads to conflicting conclusions (Sayemuzzaman, Manoj 2014;Pluntke et al 2016;Piniewski et al 2017;Szwejkowski et al 2017;Mangini et al 2018;Kohnová et al 2019). The fact is that the main climatic factors involved in the formation of river runoff are air temperature and precipitation.…”

Section: Introductionmentioning

confidence: 99%

Trends in monthly, seasonal, and annual fluctuations in flood peaks for the upper Dniester River

Melnyk¹,

Loboda²

2020

Meteorol. Hydrol. Water Manage.

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The importance of the Dniester River in the socio-economic life of Moldova and Ukraine necessitates research into the main trends in the river's runoff characteristics and dynamics, especially now, when climate change is significantly altering the water regime of rivers. This paper presents a solution for the problems of identifying the main trends in daily maximum river discharge by seasons and months for various calculation intervals. Two calculation intervals (1981-1998; 1999-2015) with different climatic conditions are considered. Each interval corresponds to one complete cycle of river water discharge. Climatic conditions as a result of global warming are changing differently in the mountains and on the plain, therefore, the identification of trends was performed separately for the alpine and lowland parts of the Dniester River annual runoff formation zone. The search for statistically significant trends was carried out by means of the Mann-Kendall test. The analysis of the frequency of maximum discharges (peak over threshold; POT3) was performed for selected rivers in the studied area. The earlier period (1981)(1982)(1983)(1984)(1985)(1986)(1987)(1988)(1989)(1990)(1991)(1992)(1993)(1994)(1995)(1996)(1997)(1998) showed statistically significant positive trends for both alpine and lowland rivers of the Upper Dniester. The later period (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015) differed, exhibiting exclusively negative significant trends in daily peaks both by months and by seasons. This result indicates a persistent tendency toward decreasing maximum water runoff for all rivers of the Upper Dniester catchment. There were no statistically significant trends in the frequency of floods. KeywordsMann-Kendall test, Dniester, peak over threshold, daily runoff maxima, trends in the changes in maximum.

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Rainfall and water conditions in the region of the upper glacial in Europe

Cited by 4 publications

References 11 publications

Regional Climate Changes in North-Eastern Poland and Their Impact on Maize Crops

Regional Climate Changes in North-Eastern Poland and Their Impact on Maize Crops

Water Vapor Induced Airborne Rotational Features

Trends in monthly, seasonal, and annual fluctuations in flood peaks for the upper Dniester River

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