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Benjamin W. Tobin, Benjamin V. Miller, Matthew L. Niemiller and Andrea M. Erhardt
Karst aquifers are unique among groundwater systems because of variable permeability and flow-path organization changes resulting from dissolution processes. Over time, changes in flow-path connectivity complicate interpretations of conduit network evolu...
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Karsten Franke, Jann Schöngart and Alexander Mansel
Four-dimensional visualization, i.e., three-dimensional space plus time, of fluid flow and its interactions in geological materials using positron emission tomography (PET) requires suitable radiotracers that exhibit the desired physicochemical interacti...
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Eleonora Dallan, Andrea Bottacin-Busolin, Mattia Zaramella and Andrea Marion
Solute transport in rivers is controlled by mixing processes that occur over a wide spectrum of spatial and temporal scales. Deviations from the classic advection?dispersion model observed in tracer test studies are known to be generated by the temporary...
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Yuanzhi He, Hanxun Wang, Jin Zhou, Haifeng Su, Li Luo and Bin Zhang
In the process of tunnel construction, the water inrush disaster is one of the main engineering geological disasters. In karst strata, different types of water-bearing structures or karst water bodies develop and occur in the soluble rock layer, and tunn...
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Chun-Gu Lee, Seung-Hwa Yu and Joong-Yong Rhee
The use of unmanned aerial spray systems (UASS) has increased owing to their many advantages. However, studies related to a standardized method to evaluate the spray performance of UASS are lacking. Therefore, in the present study, a quantitative analyti...
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Alberto Tazioli, Davide Fronzi and Elisa Mammoliti
Environmental isotopes are essential in hydrogeological studies, thanks to their contribution to the understanding of aquifers dynamics, vulnerability, water resources assessment, and management issues. The environmental isotopic approach plays a vital r...
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Alanna L. Lecher
Radium has been commonly used as a tracer of submarine groundwater discharge to the ocean and embankments, as radium activities are commonly input into box models to calculate a groundwater flux. Similarly, isotopes of radium (Ra224, Ra223, Ra226, Ra228)...
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Hayden Hedworth, Jeffrey Page, John Sohl and Tony Saad
Unmanned Aerial Vehicles (UAVs) are a popular platform for air quality measurements. For vertical measurements, rotary-wing UAVs are particularly well-suited. However, an important concern with rotary-wing UAVs is how the rotor-downwash affects measureme...
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Billy Justus
Groundwater (GW) in the Mississippi Delta has some of the highest phosphorus (P) concentrations measured in the U.S. Chemical data collected from GW and surface water (SW) sites were compared to understand factors affecting P concentrations. Spatial inst...
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Elisa Mammoliti, Davide Fronzi, Costanza Cambi, Francesco Mirabella, Carlo Cardellini, Emiliano Patacchiola, Alberto Tazioli, Stefano Caliro and Daniela Valigi
Carbonate aquifers are characterised by strong heterogeneities and their modelling is often a challenging aspect in hydrological studies. Understanding carbonate aquifers can be more complicated in the case of strong seismic events which have been widely...
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