Groundwater fauna downtown – Drivers, impacts and implications for subsurface ecosystems in urban areas

Journal of Contaminant Hydrology, Год журнала: 2022, Номер 248, С. 104021 - 104021

Опубликована: Май 11, 2022

Groundwater fauna (stygofauna) comprises organisms that have adapted to the dark subterranean environment over a course of thousands and millions years, typically having slow metabolisms long life cycles. They are crucial players in groundwater oxygenic aquifers, contribute various ecosystem services. Today's knowledge their sensitivity anthropogenic impacts is incomplete critical analysis general relevance local findings lacking. In this review, we focus on those areas with highest interference between humans stygofauna: cities. Here where pollution by contaminants heat strongly stresses unique ecosystems. It demonstrated it difficult discern influence individual factors from reported field studies, extrapolate laboratory results conditions. The effects temperature increase chemical vary tested species test general, previous indicate heating, especially long-term, will mortality, less at risk vanishing habitats. same may be true for salinity caused road de-icing cold urban areas. Furthermore, high sensitivities were shown ammonium, which probably even more pronounced rising temperatures resulting altered biodiversity patterns. Toxicity heavy metals, variety invertebrates, increases time chronic exposure. Our current reveals diverse potential pollution, but our insights gained so far can only validated standardized long-term concepts.

Язык: Английский

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SHALLOW GEOTHERMAL ENERGY SYSTEMS FOR DISTRICT HEATING AND COOLING NETWORKS: REVIEW AND TECHNOLOGICAL PROGRESSION THROUGH CASE STUDIES

Renewable Energy, Год журнала: 2024, Номер unknown, С. 121436 - 121436

Опубликована: Сен. 1, 2024

Язык: Английский

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Sustainable urban designs integrating aboveground microclimates and underground heat islands: A systematic review and design strategies

Renewable and Sustainable Energy Reviews, Год журнала: 2025, Номер 212, С. 115445 - 115445

Опубликована: Фев. 2, 2025

Язык: Английский

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Increasing Trends of Shallow Groundwater Warming in Vienna's Urban Aquifers

Hydrological Processes, Год журнала: 2025, Номер 39(2)

Опубликована: Фев. 1, 2025

ABSTRACT Shallow groundwater in many cities around the world is subject to elevated temperatures that pose a risk quality and ecosystems. The objective of this study assess suitability different trend estimation methods for temperature specifically investigate spatio‐temporal long‐term changes water urban Vienna. Twenty‐year data records (2001–2020) from sources were used air, soil, river regarding their annual mean extreme percentile values. effects quality, methods, various time periods analysis investigated. Block bootstrapping combination with Mann–Kendall test was found be suitable method determining significance trends if time‐series are short (10 years), as underlying assumptions lowest among all approaches. Between 2001 2020, average Vienna increased by 0.9 K/decade shallow 0.8 air. However, increase not linear has intensified later decade an 1.4 K/decade. temperatures, represented lower (cold) / upper (warm) 10th soil quantile regression, show strongest air temperatures. For groundwater, these value site‐specific influenced infrastructure interaction water. These results underline importance spatially temporally high‐resolution highlight need aquifer characterisation sustainable use geothermal energy heating cooling. GWT rise needs considered management avoid possible negative consequences ecology.

Язык: Английский

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Shallow subsurface heat recycling is a sustainable global space heating alternative

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Июль 8, 2022

Despite the global interest in green energy alternatives, little attention has focused on large-scale viability of recycling ground heat accumulated due to urbanization, industrialization and climate change. Here we show this theoretical potential at a multi-continental scale by first leveraging datasets groundwater temperature lithology assess distribution subsurface thermal pollution. We then evaluate for three scenarios: status quo scenario representing present-day heat, recycled with temperatures returned background values, change projected warming impacts. Our analyses reveal that over 50% sites recyclable underground pollution quo, 25% locations would be feasible long-term scenario, least 83% scenario. Results highlight warrants consideration move low-carbon economy warmer world.

Язык: Английский

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The Change Pattern and Its Dominant Driving Factors of Wetlands in the Yellow River Delta Based on Sentinel-2 Images

Remote Sensing, Год журнала: 2022, Номер 14(17), С. 4388 - 4388

Опубликована: Сен. 3, 2022

There were significant differences in the dominant driving factors of change process different types wetlands Yellow River delta. In addition, to our knowledge, optimal classification feature sets with Random Forest algorithm for delta least explored. this paper, wetland information study area was extracted based on a de-feature variable redundancy, and then its from 2015 2021 monitored analyzed using Geodetector gravity center model. The results showed that (1) composed red edge indexes had highest accuracy, overall accuracy Kappa coefficient 95.75% 0.93. (2) During 2015–2021, large natural transformed into an artificial wetland. development direction “northwest–southeast” along River. (3) interaction between vegetation coverage accumulated temperature largest explanatory power area. solar radiation DEM research could better provide decisions protection restoration

Язык: Английский

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Subsurface heat island across the Chicago Loop district: Analysis of localized drivers

Urban Climate, Год журнала: 2022, Номер 44, С. 101211 - 101211

Опубликована: Июль 1, 2022

Язык: Английский

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Thermal impact of underground car parks on urban groundwater

The Science of The Total Environment, Год журнала: 2023, Номер 903, С. 166572 - 166572

Опубликована: Авг. 24, 2023

Built-up areas are known to heavily impact the thermal regime of shallow subsurface. In many cities, answer densification is increase height and depth buildings, which leads a steady growth in number underground car parks. These parks heated by waste heat from engines typically several degrees warmer than surrounding subsurface, makes them source for ambient subsurface groundwater. Thus, objective this study investigate 31 six cities upscale that have on Berlin, Germany. Underground daily, weekly, seasonal temperature patterns respond air circulation traffic frequency, resulting net fluxes 0.3 15.5 W/m2 at measured sites. For studied emitted annual energy about 0.65 PJ. Recycling with geothermal pumps would provide sustainable alternative green counteract urban island cooling

Язык: Английский

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Assessing coupling between soil temperature and potential air temperature using PALM-4U: implications for idealized scenarios

Earth System Dynamics, Год журнала: 2025, Номер 16(1), С. 55 - 74

Опубликована: Янв. 8, 2025

Abstract. Underground heat extremes, amplified by factors such as underground infrastructure or poorly adjusted geothermal systems, have long been discussed in the geosciences. However, there is little emphasis on exchange between these subsurface extremes and atmosphere. To address issue, this study investigates impact of varying soil temperatures potential air an idealized domain using turbulence- building-resolving large-eddy-simulation urban microclimate model PALM-4U (Parallelized Large-Eddy Simulation Model for Urban Applications). This involves two steps. First, we test if how domains can be simulated, second, coupling surface energy fluxes, rather soil, focus. We develop several scenarios, distinguishing cyclic Dirichlet/radiation boundary conditions along x axis, summer winter, various land cover types. Our results demonstrate that induce modifications due to changes temperature. The magnitude varies with respect tested covers, which primarily affect absolute temperatures. time day season a larger influence modifications. A 5 K increase at 2 m depth maximum 0.38 near-surface during winter 09:00 10:00 local after 3 d simulation. When are decreased, find predominantly inverse patterns. least found 09:00, when elevated only 0.02 over short tall grass 0.18 bare soil. conditions, atmosphere cannot freely, changing do not These help enhance our understanding atmospheric also provide recommendations “simulatability” but reality-oriented scenarios PALM-4U. one first studies cold sources parameters.

Язык: Английский

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Spatio-temporal diffusion of groundwater heat pumps across Austria: A long-term multi-metric trend analysis (1990–2022)

Applied Energy, Год журнала: 2025, Номер 383, С. 125340 - 125340

Опубликована: Янв. 16, 2025

Язык: Английский

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