The thermal impact of subsurface building structures on urban groundwater resources – A paradigmatic example

Epting, Jannis; Scheidler, Stefan; Affolter, Annette; Borer, Paul; Egli, Lukas; García‐Gil, Alejandro; Huggenberger, Peter

doi:10.1016/j.scitotenv.2017.03.296

Cited by 40 publications

(23 citation statements)

References 32 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The high mean AHI and standard deviation of the LUC 'city' stand out and reflect the significant, yet variable impact of the different subclasses and of the corresponding heat sources. High GWT in city centres are due to the interference and superposition of heat input by sealed surfaces and underground structures, as already described in several SUHI studies [23,36,38,40,41,56,[61][62][63][64]. A conspicuous cluster of wells showing increased GWT were observed close to underground car parks and therefore, classified as separate subclasses.…”

Section: Resultssupporting

confidence: 54%

“…Multiple previous studies on SUHIs indicated local hot spots within dense urban areas and industrial sites, which is also evident in our current findings here. Epting et al [41], Menberg et al [23] and Ferguson and Woodbury [55] noticed a strong correlation between the highest underground temperatures and the density of buildings, in particular buildings with heated basements. For the city centre of Cologne and Winnipeg, Zhu et al [56] found an increase in GWT of up to 5K, which compares closely with the median of the AHI max of artificial surfaces in this study (figure S9).…”

Section: Resultsmentioning

confidence: 97%

“…Further GWT anomalies induced by underground car parks, construction sites, wastewater treatment plants, mine, landfills or power stations are also observed [25,36,40,41]. In their study on GWTs in Germany, Benz et al [42] introduced the anthropogenic heat intensity (AHI), which relates average rural background temperatures to local temperature measurements.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Groundwater temperature anomalies in central Europe

Tissen

Benz

Menberg

et al. 2019

Environ. Res. Lett.

View full text Add to dashboard Cite

As groundwater is competitively used for drinking, irrigation, industrial and geothermal applications, the focus on elevated groundwater temperature (GWT) affecting the sustainable use of this resource increases. Hence, in this study GWT anomalies and their heat sources are identified. The anthropogenic heat intensity (AHI), defined as the difference between GWT at the well location and the median of surrounding rural background GWTs, is evaluated in over 10 000 wells in ten European countries. Wells within the upper three percentiles of the AHI are investigated for each of the three major land cover classes (natural, agricultural and artificial). Extreme GWTs ranging between 25°C and 47°C are attributed to natural hot springs. In contrast, AHIs from 3 to 10K for both natural and agricultural surfaces are due to anthropogenic sources such as landfills, wastewater treatment plants or mining. Two-thirds of all anomalies beneath artificial surfaces have an AHI>6 K and are related to underground car parks, heated basements and district heating systems. In some wells, the GWT exceeds current threshold values for open geothermal systems. Consequently, a holistic management of groundwater, addressing a multitude of different heat sources, is required to balance the conflict between groundwater quality for drinking and groundwater as an energy source or storage media for geothermal systems. Abbreviations AHI (K) anthropogenic heat intensity AHI max (K) upper 3% percentile of the anthropogenic heat intensity AMD acid mine drainage CLC CORINE land cover DH district heating GST (°C) ground surface temperature GWT (°C) groundwater temperature GWT r (°C) rural background groundwater temperature LUC land utilisation class r seasonal radius SUHI subsurface urban heat island URG Upper Rhine Graben

show abstract

Section: Resultssupporting

confidence: 54%

Section: Resultsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Groundwater temperature anomalies in central Europe

Tissen

Benz

Menberg

et al. 2019

Environ. Res. Lett.

View full text Add to dashboard Cite

show abstract

“…Heated basements of buildings or similar infrastructure are apparently the most important source of underground heat in urban areas. Air temperatures within such infrastructure can fluctuate annually between 13 °C and 27 °C (Menberg et al ; Attard et al ; Kupfersberger et al ; Epting et al ). The resulting heat flux into the ground, which would be highest within a dynamic flow system, would depend on the depth of the basement foundation below the water table, and on the groundwater flow velocity (Kupfersberger et al ).…”

Section: Introductionmentioning

confidence: 99%

Assessing the Impact of a Heated Basement on Groundwater Temperatures in Bratislava, Slovakia

et al. 2020

View full text Add to dashboard Cite

Groundwater temperature is a useful hydrogeological parameter that is easy to measure and can provide much insight into groundwater flow systems, but can be difficult to interpret. For measuring temperature directly in the ground, dedicated specifically designed monitoring wells are recommended since conventional groundwater wells are not optimal for temperature monitoring. Multilevel monitoring of groundwater temperature is required to identify contributions of different possible heat inputs (sources) on measured temperature signals. Interpreting temperature data as a cosine function, including period, average temperature, amplitude, and phase offset, is helpful. Amplitude dampening and increasing phase shift with distance from a boundary can be used for estimation of transport parameters. Temperature measurements at different depths can be used for evaluation of unknown parameters of analytical functions by optimization of regression fits in Python. These estimated parameters can be used to calculate temperatures at known water table depths which can be applied as a fixed transient boundary condition in MT3DMS to overcome the limitations of MT3DMS heat transport modeling in the unsaturated zone. In this study, temperature monitoring and modeling was used to evaluate the influence of a department store's heated basement foundation on groundwater temperature within a green space (city park), with the main outcome that 17 years after construction, the department store foundation has increased the mean groundwater temperature by 3.2 • C. Heat input evaluated by the MT3DMS model varied from 0.1 W/m 2 at a distance of 100 m up to 12 W/m 2 next to the building.

show abstract

“…However, unlike meteorological phenomena, which have a large discontinuity, groundwater acting as an intermediate medium to surface water is relatively slow in moving and is relatively less sensitive to changes in external factors [12]. Human activities and artificial construction can affect the groundwater system (e.g., recharge, flow paths, water quality [13][14][15]); however, if the anthropogenic influence is not significant, the groundwater level (GWL) displays a periodicity, such as daily, seasonal, or annual change [16][17][18][19], in addition, GWLs can also response to longer teleconnections and climate variability at multiannual, decadal, or longer time scales [20]. It experiences long-term trends of several hours to several months, depending on the depth and aquifer characteristics.…”

mentioning

confidence: 99%

Assessment of Groundwater Drought in the Mangyeong River Basin, Korea

et al. 2018

View full text Add to dashboard Cite

When groundwater drought occurs, baseflow discharges to surface-water bodies will be reduced and then domestic and agricultural water usage becomes at risk of insufficient supply. Thus, in this study, several methods for groundwater drought assessment were tested with long-term monitoring water-level data in the study area to preserve groundwater sustainability from drought, principally caused by reduced precipitation and propagated through agricultural drought and groundwater drought. Because of the Monsoon climate on the Korean Peninsula, the groundwater storage (or water-level) is secured until the end of summer, then falls by natural discharge during the dry seasons of autumn, winter and the following spring. Thus, the rainfall in the wet season seems to mainly influence groundwater storage until the spring of the following year. As the groundwater level (GWL) declines due to natural drainage and the use of agricultural water increases by the end of the dry season (October-May), the GWL will become lowered below the critical level. Below this level, sufficient water supply is not secured. Using the Standardized Precipitation Index (SPI), threshold method and 95% probability occurrence method, drought detection and the frequency of drought are compared. Groundwater drought using the threshold method results in more frequent occurrence than using the SPI method. The 95% occurrence method responds to severe drought but it also has weakness in missing the man-induced GWL decline in every spring season. For groundwater drought assessment, an appropriate drought index should be utilized according to climatic conditions and catchment characteristics. In the study area, variations of the both natural and anthropogenic effects are mixed and the threshold method is more suitable as a measure for preventing water resources shortage.

show abstract

The thermal impact of subsurface building structures on urban groundwater resources – A paradigmatic example

Cited by 40 publications

References 32 publications

Groundwater temperature anomalies in central Europe

Groundwater temperature anomalies in central Europe

Assessing the Impact of a Heated Basement on Groundwater Temperatures in Bratislava, Slovakia

Assessment of Groundwater Drought in the Mangyeong River Basin, Korea

Contact Info

Product

Resources

About