Temperatura wód podziemnych i jej znaczenie w badaniach hydrogeologicznych

Staśko, Stanisław; Buczyński, Sebastian; Błachowicz, Marek

doi:10.7306/2021.12

Cited by 2 publications

(1 citation statement)

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“…Comparing the spatial distribution of groundwater temperature obtained in our study and presented in [52] on the basis of 2013 measurements it can be stated that they are similar -temperatures higher than average are visible in the city centre. In the data on average air and groundwater temperatures, there is a similarity between the behaviour of both of these spatial distributions.…”

Section: Discussionsupporting

confidence: 69%

Study of groundwater temperature spatio-temporal variation in the city of Wroclaw. Preliminary results.

Hajnrych

Blachowski

Worsa-Kozak

2023

IOP Conf. Ser.: Earth Environ. Sci.

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In Wrocław over the past 20 years, the recorded increase in the average ambient air temperature is approx. 0.5 °C. In addition, urbanisation has created a phenomenon called the Urban Heat Island (UHI). The combined effect of the UHI and climate change can influence groundwater temperature by penetrating underground. The phenomenon of elevated groundwater temperatures in urban areas is called the Subsurface Urban Heat Island (SSUHI). This study focuses on the spatial distribution of temperature in shallow aquifers in the city of Wroclaw. The spatial distribution was analysed based on groundwater temperature maps developed with various interpolation techniques. The results of measurements in a network of 65 piezometers conducted in the 2004-2005 hydrological year have been used in this study. The temperatures recorded show seasonal variation with the lowest recorded in February (1.3 °C) and the highest in August (24.5 °C) with the annual average of 13.2 °C. The data has been processed with the Inverse Distance Weighted (IDW), Radial Basis Function (RBF) and Kriging interpolation methods. Furthermore, the cokriging method based on multivariate linear regression models has been used to assess if variable such as distance from the city centre improve the interpolation performance expressed as the lowest RMS error value. It has been established that the Kriging univariate regression model based interpolation method produced the best results (RMS error equal to 1.33 °C) and that the distance from the city centre has improved the accuracy of interpolation.

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Section: Discussionsupporting

confidence: 69%

Study of groundwater temperature spatio-temporal variation in the city of Wroclaw. Preliminary results.

Hajnrych

Blachowski

Worsa-Kozak

2023

IOP Conf. Ser.: Earth Environ. Sci.

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基于热传输与水混合的持续监测和数值模拟的泉水温度变异性解释: 以波兰南部Pieniny山脉Czarny Potok泉水为例

Gruszczyński,

Szostakiewicz-Hołownia,

Zaszewski

2023

Hydrogeol J

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A numerical model of heat conduction and water mixing was developed, enabling a quantitative description of water temperature variability at a spring outflow. The study examined the Czarny Potok spring, located in the Pieniny Mountains of southern Poland, which was the subject of a 4-year series of water temperature observations. The presented model describes the soil and water environment in the immediate vicinity of the spring, assuming that the spring water temperature is shaped by the mixing of water flowing through the shallow zone that experiences seasonal fluctuation and the deeper neutral zone. It was also assumed that the conductive heat flow in the tested medium is conditioned by seasonal heating and cooling of the land surface. The thermal diffusivity of the bedrock was calculated on the basis of the phase shift and the attenuation of thermal amplitude at different depths, based on long-term monitoring of soil temperature. The heat conduction and water mixing models enabled calculation of the water temperature at the outflow. The obtained results are close to the empirical spring water temperatures. The estimated mean error was 0.075 °C and the mean absolute error was 0.188 °C. The results of the calculations suggest that the tested spring is recharged primarily by water flowing through the seasonal fluctuation zone (75%), while the remaining 25% captures a deeper circulation system associated with the neutral zone.

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Temperatura wód podziemnych i jej znaczenie w badaniach hydrogeologicznych

Cited by 2 publications

References 0 publications

Study of groundwater temperature spatio-temporal variation in the city of Wroclaw. Preliminary results.

Study of groundwater temperature spatio-temporal variation in the city of Wroclaw. Preliminary results.

基于热传输与水混合的持续监测和数值模拟的泉水温度变异性解释: 以波兰南部Pieniny山脉Czarny Potok泉水为例

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