| Records |
| Author |
Christofi, C.; Bruggeman, A.; Külls, C.; Constantinou, C. |
| Title |
Hydrochemical evolution of groundwater in gabbro of the Troodos Fractured Aquifer. A comprehensive approach |
Type |
Journal Article |
| Year |
2020 |
Publication |
Applied Geochemistry |
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| Volume |
114 |
Issue |
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Pages |
104524 |
| Keywords |
geochemistry |
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Pergamon |
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English |
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THL @ christoph.kuells @ Christofi2020hydrochemical |
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13 |
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| Author |
Constantinou, C.; Udluft, P. |
| Title |
Mapping the availability and dynamics of groundwater recharge. Part 2: Case studies from Mediterranean Basins |
Type |
Conference Article |
| Year |
2000 |
Publication |
Proceedings of Third Congress on Regional Geological Cartography and Information Systems |
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163-168 |
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THL @ christoph.kuells @ Constantinou2000mapping |
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61 |
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| Author |
Custódio, D.A.; Ghisi, E. |
| Title |
Impact of residential rainwater harvesting on stormwater runoff |
Type |
Journal Article |
| Year |
2023 |
Publication |
Journal of Environmental Management |
Abbreviated Journal |
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| Volume |
326 |
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Pages |
116814 |
| Keywords |
Rainwater harvesting, Residential buildings, Stormwater runoff, Floods, Computer simulation |
| Abstract |
Population increase, climate change and soil impermeability are factors causing floods in large urban centres. Such places also always have water shortage problems. This research aims to evaluate the influence of rainwater harvesting in residential buildings on stormwater in a basin located in southern Brazil (Rio Cachoeira Basin). Urbanised and non-urbanised areas, soil types, curve numbers and time of concentration of each sub-basin were taken into account. Through the HEC-HMS programme, it was possible to calculate hydrographs for the base scenario (when there is no rainwater harvesting). Then, rainwater tanks for the residential buildings were sized using the computer programme Netuno. In the second scenario, there is rainwater harvesting in all residential buildings. Thus, the hydrographs for the second scenario were also calculated. The peak flow reduction potentials for the sub-basins ranged from 2.7% to 14.3%. The highest percentage (14.3%) did not occur in the sub-basin with the most extensive roof area; such highest peak flow reduction occurred in Bom Retiro sub-basin. In Bom Retiro sub-basin, there are more houses than multi-storey residential buildings. Even when considering the full potential of rainwater harvesting for roof areas of all existing buildings in the Rio Cachoeira Basin, the average potential reduction in peak flow was 7.2%. The conclusion is that rainwater tanks in residential buildings have little influence on stormwater runoff, and the stormwater runoff will be less affected when the area of the hydrographic basin is larger. Thus, the reduction in peak flows is insignificant when considering the flooding in the region. |
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0301-4797 |
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THL @ christoph.kuells @ Custodio2023116814 |
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231 |
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Dąbrowska, J.; Orellana, A.E.M.; Kilian, W.; Moryl, A.; Cielecka, N.; Michałowska, K.; Policht-Latawiec, A.; Michalski, A.; Bednarek, A.; Włóka, A. |
| Title |
Between flood and drought: How cities are facing water surplus and scarcity |
Type |
Journal Article |
| Year |
2023 |
Publication |
Journal of Environmental Management |
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| Volume |
345 |
Issue |
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Pages |
118557 |
| Keywords |
Urban ecosystem management, Urban floods, Urban droughts, Nature-based solutions, Climate change, Urban resilience |
| Abstract |
Droughts and floods are weather-related hazards affecting cities in all climate zones and causing human deaths and material losses on all inhabited continents. The aim of this article is to review, analyse and discuss in detail the problems faced by urban ecosystems due to water surplus and scarcity, as well as the need of adaptation to climate change taking into account the legislation, current challenges and knowledge gaps. The literature review indicated that urban floods are much more recognised than urban droughts. Amongst floods, flash floods are currently the most challenging, which by their nature are difficult to monitor. Research and adaptation measures related to water-released hazards use cutting-edge technologies for risk assessment, decision support systems, or early warning systems, among others, but in all areas knowledge gaps for urban droughts are evident. Increasing urban retention and introducing Low Impact Development and Nature-based Solutions is a remedy for both droughts and floods in cities. There is the need to integrate flood and drought disaster risk reduction strategies and creating a holistic approach. |
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0301-4797 |
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THL @ christoph.kuells @ Dabrowska2023118557 |
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227 |
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| Author |
Dahan, O.; Tatarsky, B.; Enzel, Y.; Külls, C.; Seely, M.; Benito, G. |
| Title |
Dynamics of flood water infiltration and ground water recharge in hyperarid desert |
Type |
Journal Article |
| Year |
2008 |
Publication |
Groundwater |
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46 |
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3 |
Pages |
450-461 |
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Blackwell Publishing Inc Malden, USA |
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THL @ christoph.kuells @ Dahan2008dynamics |
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27 |
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Davila, P.; Külls, C. |
| Title |
Combined application of 85-Kr, 39-Ar with CFCs in contaminated aquifers |
Type |
Journal Article |
| Year |
2009 |
Publication |
EGU Geophysical Abstracts |
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1074 |
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THL @ christoph.kuells @ Davila2009combined |
Serial |
51 |
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Davila, P.; Külls, C. |
| Title |
Reliability of current CFC data for age dating of water |
Type |
Conference Article |
| Year |
2010 |
Publication |
EGU Geophysical Abstracts |
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536 |
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THL @ christoph.kuells @ Davila2010reliability |
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49 |
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Dávila, P.; Külls, C.; Weiler, M. |
| Title |
A toolkit for groundwater mean residence time interpretation with gaseous tracers |
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Journal Article |
| Year |
2013 |
Publication |
Computers & Geosciences |
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61 |
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116-125 |
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Pergamon |
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THL @ christoph.kuells @ Davila2013toolkit |
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22 |
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| Author |
Demuth, S.; Külls, C. |
| Title |
Probability analysis and regional aspects of droughts in southern Germany |
Type |
Journal Article |
| Year |
1997 |
Publication |
Sustainability of Water Resources under Increasing Uncertainty |
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240 |
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97 |
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Iahs |
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THL @ christoph.kuells @ Demuth1997probability |
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35 |
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Marteleto, T. de P.; Abreu, A.E.S. de; Barbosa, M.B.; Yoshinaga-Pereira, S.; Bertolo, R.A.; Enzweiler, J. |
| Title |
Groundwater apparent ages and isotopic composition in Crystalline, Diabase and Tubarão aquifers contact area in Campinas, Southeastern Brazil |
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Journal Article |
| Year |
2024 |
Publication |
Journal of South American Earth Sciences |
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135 |
Issue |
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104783 |
| Keywords |
Fractured aquifer, Groundwater mixing, Isotopes, Water management |
| Abstract |
This study refines the hydrogeological conceptual model of an area with three interconnected aquifers, namely the Crystalline Aquifer System (CAS – igneous and metamorphic rocks), which is in contact with the Tubarão Aquifer System (TAS – sedimentary rocks) and the Diabase Aquifer System (DAS – diabase rocks). The detailed investigation involved geophysical logging and hydraulic and hydrodynamic characterization with straddle packers in a local tubular well, in which groundwater presents high uranium concentrations. Hydrogeochemical and isotope (δ2H, δ18O, 3H, δ13C, 14C) analysis in this well and in other three neighboring wells, with lower U concentrations, showed that ancient and modern waters (3H from <0.8 to 1.12 TU, 14C from 69.43 to 78.72 pMC) mix within the aquifer. During groundwater pumping, vertical fractures in the diabase aquifer possibly induce water mixing and recharge of the deeper levels of the aquifers from shallow layers. The high [U] are related to ancient waters from a confined aquifer hosted in CAS that reaches the wells through hydraulically active fractures located deeper than 159 m depth. Groundwater apparent ages do not increase systematically with depth, revealing a complex circulation model for CAS. The results obtained from the other wells, which are all located on drainage lineaments, reveal that one extracts modern water from DAS and TAS, another one extracts modern and ancient water from DAS and CAS, and the third extracts only ancient water from CAS, confirming the complexity of the local hydrogeology. Regarding regional groundwater management, the study revealed the need to characterize the sources of groundwater in each well, in order to protect modern waters from anthropogenic contamination and to protect ancient groundwater from overexploitation, as CAS hosts groundwaters recharged thousands of years ago or more. |
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0895-9811 |
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THL @ christoph.kuells @ Depaulamarteleto2024104783 |
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221 |
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