Estimating submarine groundwater discharge and associated nutrient inputs into Daya Bay during spring using radium isotopes
نویسندگان
چکیده
منابع مشابه
Investigating Contaminant Inputs via Submarine Groundwater Discharge to Coastal Waters Using Radium Isotopes
Our long-term goal is to determine if submarine groundwater discharge (SGWD) is an important mechanism for delivering contaminants (i.e. heavy metals, organics) to harbors. We plan to accomplish this goal using a suite of naturally-occurring radium isotopes as tracers of SGWD and the dispersion of contaminants from the embayment (Buesseler/WHOI). In addition, we plan to develop a comprehensive ...
متن کاملNutrient Loading through Submarine Groundwater Discharge and Phytoplankton Growth in Monterey Bay, CA.
We quantified groundwater discharge and associated nutrient fluxes to Monterey Bay, California, during the wet and dry seasons using excess (224)Ra as a tracer. Bioassay incubation experiments were conducted to document the response of bloom-forming phytoplankton to submarine groundwater discharge (SGD) input. Our data indicate that the high nutrient content (nitrate and silica) in groundwater ...
متن کاملMeasurement of submarine groundwater discharge in Kahana Bay, O‘ahu, Hawai‘i
Submarine groundwater discharge (SGD) is neither well understood nor commonly investigated in Hawai‘i, but it is recognized as a potential pollution source to coastal environments. Between 1998 and 2000, this study located and quantified both total SGD and the terrestrial SGD fraction ( ftgw) in Kahana Bay, O‘ahu. CTD casts were used to profile the water structure and identify potential areas o...
متن کاملUsing natural distributions of short-lived radium isotopes to quantify groundwater discharge and recharge
Radium activity in pore water of wetland sediments often differs from the amount expected from local production, decay, and exchange with solid phases. This disequilibrium results from vertical transport of radium with groundwater that flows between the underlying aquifer and surface water. In situations where groundwater recharge or discharge is significant, the rate of vertical water flow thr...
متن کاملSubmarine fresh groundwater discharge into Laizhou Bay comparable to the Yellow River flux.
Near- and off-shore fresh groundwater resources become increasingly important with the social and economic development in coastal areas. Although large scale (hundreds of km) submarine groundwater discharge (SGD) to the ocean has been shown to be of the same magnitude order as river discharge, submarine fresh groundwater discharge (SFGD) with magnitude comparable to large river discharge is nev...
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ژورنال
عنوان ژورنال: Water Science and Engineering
سال: 2018
ISSN: 1674-2370
DOI: 10.1016/j.wse.2018.06.002