Chris Reich's research while affiliated with United States Geological Survey and other places

Publications (3)

Conference Paper
Estimates of submarine ground-water discharge (SGD) have remained one of the most elusive components of a coastal water and constituent budget. Nonetheless, environmental impacts of SGD are often widespread, and have been tied to coastal eutrophication, algal blooms, and near-shore bacterial transport. New geochemical and geophysical techniques hav...
Article
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Geochemical tracer data (i.e., 222Rn and four naturally occurring Ra isotopes), electromagnetic (EM) seepage meter results, and high-resolution, stationary electrical resistivity images were used to examine the bi-directional (i.e., submarine groundwater discharge and recharge) exchange of a coastal aquifer with seawater. Our study site for these e...
Article
Full-text available
A suite of naturally occurring radionuclides in the U/Th decay series (222Rn, 223,224,226,228Ra) were studied during wet and dry conditions in Tampa Bay, Florida, to evaluate their utility as groundwater discharge tracers, both within the bay proper and within the Alafia River/estuary — a prominent free-flowing river that empties into the bay. In T...

Citations

... However, recent seagrass losses attributed to harmful algal blooms and tropical storm impacts have occurred in Tampa Bay (Tomasko et al., 2020;Beck et al., 2022b;Lopez et al., 2023); and decreasing pH has been observed over the past decade (Karlen et al., 2023). Submarine groundwater discharge has been documented in Florida estuaries (Swarzenski et al., 2007;Charette et al., 2013) and may also contribute to localized acidification events. Seagrasses are predicted to benefit from elevated pCO 2 and are capable of increasing pH and carbonate mineral saturation states through photosynthesis, which in turn, may buffer against acidification (Sunday et al., 2017;Cyronak et al., 2018;Pacella et al., 2018). ...
... Evidence has indicated that nutrient loadings from SGD can be as substantial as those from surface water due to the large amount of SGD and high nutrient levels in SGD (Swarzenski et al., 2007;Hwang et al., 2010;Rodellas et al., 2015;Santos et al., 2021;Garcia-Orellana et al., 2021). Moreover, the occurrence of environmental issues such as harmful algal blooms in coastal areas is closely associated with this process (Hu et al., 2006). ...