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Eric D. Swain, James E. Landmeyer, Michael A. Singletary and Shannon E. Provenzano
Past waste-disposal activities at Naval Air Station Whiting Field (NASWF) have led to elevated concentrations of contaminants in the underlying sand and gravel aquifer. Contaminants include two of the most commonly detected chemicals in groundwater in ma...
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Chaloemporn Ponprasit, Yong Zhang, Xiufen Gu, Andrew M. Goodliffe and Hongguang Sun
Groundwater vulnerability assessment helps subsurface water resources management by providing scientific information for decision-makers. Rigorous, quantitative assessment of groundwater vulnerability usually requires process-based approaches such as gro...
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Gasper L. Sechu, Bertel Nilsson, Bo V. Iversen, Mette B. Greve and Mogens H. Greve
Groundwater-dependent terrestrial ecosystems (GWDTE) have been increasingly under threat due to groundwater depletion globally. Over the past 200 years, there has been severe artificial drainage of low-lying areas in Denmark, leading to a gradual loss of...
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James E. Landmeyer, W. Scott McBride and William B. Tate
The Okaloosa darter (Etheostoma okaloosae) is a diminutive, perch-like, benthic fish that inhabits only six small, clear, and shallow creek systems that flow almost entirely within Eglin Air Force Base in the panhandle of northwest Florida. Listed as End...
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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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Jeff B. Langman, Julianna Martin, Ethan Gaddy, Jan Boll and David Behrens
A snowpack?s d2H and d18O values evolve with snowfall, sublimation, evaporation, and melt, which produces temporally variable snowpack, snowmelt, and runoff isotope signals. As a snowpack ages, the relatively depleted d2H and d18O values of snow will bec...
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Francisco Balocchi, Diego Rivera, José Luis Arumi, Uwe Morgenstern, Donald A. White, Richard P. Silberstein and Pablo Ramírez de Arellano
Wildfires are an important disturbance affecting catchments? soil and hydrological processes within. Wildfires are predicted to increase in both frequency and severity under climate change. Here, we present measurements of tritium (3H) in surface water o...
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Fernando Gázquez, Ana Monteserín, Christina Obert, Carsten Münker, Ángel Fernández-Cortés and José María Calaforra
Subaqueous gypsum (CaSO4·2H2O) crystals are relatively common in epithermal systems where sulfide ore deposits are present. The Giant Geode of Pulpí (Almería, SE Spain) hosts some of the largest (up to 2 m in length) subaqueous gypsum crystals discovered...
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Mohammed Hssaisoune, Lhoussaine Bouchaou, Mohamed Qurtobi, Hamid Marah, Mohamed Beraaouz and Jamal Stitou El Messari
Karstic aquifers play an important role for drinking and irrigation supply in Morocco. However, in some areas, a deeper understanding is needed in order to improve their sustainable management under global changes. Our study, based on chemical and isotop...
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Ibrahim M. Ahmed, Mohamed Jalludin and Moumtaz Razack
The hydrogeological system of the Goda Mountains Range (GMR) in the Republic of Djibouti (Horn of Africa), hosted by volcanic and sedimentary formations, is the only water resource in the Tadjourah region for more than 85,000 inhabitants. Water needs are...
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