Paired air-water annual temperature patterns reveal hydrogeological controls on stream thermal regimes at watershed to continental scales

Journal of Hydrology, Journal Year: 2020, Volume and Issue: 587, P. 124929 - 124929

Published: April 6, 2020

Language: Английский

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Elevated Fe and Mn Concentrations in Groundwater in the Songnen Plain, Northeast China, and the Factors and Mechanisms Involved

Agronomy, Journal Year: 2021, Volume and Issue: 11(12), P. 2392 - 2392

Published: Nov. 24, 2021

Groundwater is an essential source of drinking and irrigation water. However, elevated Fe Mn concentrations in groundwater have been found recent decades, which can adversely affect human health decrease crop quality yields. The roles hydrogeochemical changes pollution (exogenous reductive material inputs) this not studied adequately. We determined the distribution Songnen Plain, northeast China, known for concentrations, investigated factors mechanisms involved causing concentrations. Chemical statistical analyses indicated that significantly correlated with climate parameters (precipitation temperature), surface features (altitude, distance from a river, soil type, texture, land use type) characteristics (chemical oxygen demand NH4+, NO3−, P concentrations). In particular, are higher areas containing paddy fields water bodies than other type areas. Areas ultra-high almost all favorable factors. main reasons study area Fe/Mn mineral-rich strata abundant organic matter acting as sources to environment lower terrain favoring dissolution groundwater. Inputs pollutants agricultural activities caused increase. Future studies should be performed interactions between develop environmental management strategies preventing future increases promoting sustainable development agriculture.

Language: Английский

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Urban Climate Informatics: An Emerging Research Field

Frontiers in Environmental Science, Journal Year: 2022, Volume and Issue: 10

Published: May 2, 2022

The scientific field of urban climatology has long investigated the two-way interactions between cities and their overlying atmosphere through in-situ observations climate simulations at various scales. Novel research directions now emerge recent advancements in sensing communication technologies, algorithms, data sources. Coupled with rapid growth computing power, those augment traditional methods provide unprecedented insights into atmospheric states dynamics. emerging introduced discussed here as Urban Climate Informatics (UCI) takes on a multidisciplinary approach to analyses by synthesizing two established domains: informatics. UCI is rapidly evolving that advantage four technological trends answer contemporary challenges cities: advances sensors, improved digital infrastructure (e.g., cloud computing), novel sources crowdsourced or big data), leading-edge analytical algorithms platforms machine learning, deep learning). This paper outlines history development UCI, reviews methodological advances, highlights applications benefit from datasets.

Language: Английский

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Combining monitoring and modelling tools as a basis for city-scale concepts for a sustainable thermal management of urban groundwater resources

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 627, P. 1121 - 1136

Published: Feb. 6, 2018

Language: Английский

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Experimental and numerical studies on the thermal performance of ground heat exchangers in a layered subsurface with groundwater

Renewable Energy, Journal Year: 2019, Volume and Issue: 147, P. 620 - 629

Published: Sept. 5, 2019

Language: Английский

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Effects of Temperature on Tidally Influenced Coastal Unconfined Aquifers

Water Resources Research, Journal Year: 2020, Volume and Issue: 56(4)

Published: Feb. 27, 2020

Abstract Aquifer‐ocean temperature contrasts are common worldwide. Their effects on flow and salinity distributions in unconfined coastal aquifers are, however, poorly understood. Based laboratory experiments numerical simulations, we examined the responses of processes tidally influenced to aquifer‐ocean differences. The extent seawater intrusion circulation were found vary with contrast. Compared isothermal case, an increase up 40% tide‐induced rate intertidal zone was observed when is warmer than groundwater. In contrast, saltwater lower wedge declines notably no matter whether or colder As rises, contribution overall submarine groundwater discharge becomes more important compared that density‐driven circulation. Both upper saline plume freshwater expand significantly whereas contracts.

Language: Английский

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Climate Change Yields Groundwater Warming in Bavaria, Germany

Frontiers in Earth Science, Journal Year: 2020, Volume and Issue: 8

Published: Nov. 13, 2020

Thermodynamic coupling between atmosphere and ground yields increasing aquifer temperatures as a consequence of global warming. While this is expected to manifest gradual warming in groundwater temperature time series, such continuous long-term recordings are scarce. As an alternative, the present work examines use repeated temperature-depth profiles 35 wells southern Germany, that were logged during campaigns early 1990s 2019. It revealed have increased nearly all cases. We find moderate good depth-dependent correlation trends air temperature, which however strongly influenced by local hydrogeological climate conditions. last three decades, rate 0.35 K (10a)-1 on average, increase subsurface decreasing with depth, median values 0.28 20 m only 0.09 60 depth. Still, slow damped bodies remarkable, especially considering naturally very minor changes pristine predictions atmospheric temperatures. This entails implications for temperature-dependent ecological hydro-chemical processes, also heat stored shallow ground. Moreover, it demonstrated annual gain below 15 due change range 10% state’s total demand, underlines geothermal potential associated natural fluxes at surface.

Language: Английский

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Shallow subsurface heat recycling is a sustainable global space heating alternative

Nature Communications, Journal Year: 2022, Volume and Issue: 13(1)

Published: July 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.

Language: Английский

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Impact of climate change-induced warming on groundwater temperatures and quality

Applied Water Science, Journal Year: 2023, Volume and Issue: 13(12)

Published: Nov. 14, 2023

Abstract The impacts of climate change-induced warming on our ecosystems can no longer be neglected, but understanding consequences for groundwater in general and quality particular is alarmingly incomplete. In this review, we therefore provide an overview the current state knowledge related to impact global precious resources. Groundwater shallow aquifers closely associated with increasing average land surface temperatures has already reached + 1 K compared pe-industrial times. Until end twenty-first century, temperature increases local up 10 are possible. Monitoring data, laboratory field experiments all evidence that such sufficient substantially modify through numerous interlinked biogeochemical processes, which have summarized a conceptual overview. Warming highly site-specific spatially heterogeneous, complicates their assessment prediction. Locally, unconfined nutrient-rich floodplain most susceptible warming-induced changes. Importantly, processes affecting water not only modified by long-term rise temperatures, also short-term during weather extremes, great relevance riverbank filtration. At regional scale, cold regions impacted permafrost thawing especially vulnerable warming. As majority temperature-sensitive or very slowly reversable, pressingly require comprehensive mechanistic before it too late develop suitable countermeasures management strategies.

Language: Английский

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Identifying anthropogenic anomalies in air, surface and groundwater temperatures in Germany

The Science of The Total Environment, Journal Year: 2017, Volume and Issue: 584-585, P. 145 - 153

Published: Jan. 29, 2017

Language: Английский

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