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Mostrando ítems 1-10 de 15
Artículo
Self-cleaning in an estuarine area formerly affected by 226Ra anthropogenic enhancements: numerical simulations
(Elsevier, 2005)
A numerical model of the Odiel–Tinto estuary (Spain) has been developed to study the self-cleaning process that was evidenced from 226Ra measurements in water and sediments collected in the period 1999–2002, after direct ...
Artículo
Viewpoint on the Integration of Geochemical Processes into Tracer Transport Models for the Marine Environment
(MDPI, 2022)
Two types of models are used to describe the interactions of tracers dissolved in the ocean with marine sediments: equilibrium and dynamic models. A brief description of these models is given in this opinion paper, and ...
Artículo
Marine radionuclide transport modelling: Recent developments, problems and challenges
(Elsevier, 2019)
A brief overview of the current status on the subject of numerical modelling of radionuclide transport in the marine environment is given: main transport processes occurring in the sea, basic approaches to solve such ...
Artículo
Tidal circulation, sediment and pollutant transport in Cádiz Bay (SW Spain): A modelling study
(Elsevier, 2013)
A numerical model to simulate the dispersion of particle-reactive tracers in Cádiz Bay (SW Spain) has been developed. It includes a hydrodynamic submodel to provide water currents, a sediment transport submodel, which ...
Artículo
Measuring and modelling temporal trends of 226Ra in waters of a Spanish estuary affected by the phosphate industry
(Elsevier, 2005)
The presence and temporal evolution (1990–2001) of 226Ra in a tidal estuary affected by the phosphate industry has been investigated. Water samples collected in the course of four sep arate sampling campaigns were analysed ...
Artículo
Caesium-137 and Strontium-90 temporal series in the Tagus River: experimental results and a modelling study
(Elsevier, 2012)
The objective of this work consisted of analysing the spatial and temporal evolution of two radionuclide concentrations in the Tagus River. Time-series analysis techniques and numerical modelling have been used in this ...
Artículo
APERTRACK: A particle-tracking model to simulate radionuclide transport in the Arabian/Persian Gulf
(Elsevier, 2021)
A Lagrangian rapid-response model for simulating the transport of radionuclides in the Arabian (or Persian) Gulf is described. The model is based on a tide model including five constituents, which was solved in advance, ...
Artículo
The transport, effective half-lives and age distributions of radioactive releases in the northern Indian Ocean
(Elsevier, 2021)
A Lagrangian model which describes radionuclide transport in the northern Indian Ocean is described. Water circulation is obtained from HYCOM ocean model for year 2017. The model includes advection by currents, turbulent ...
Artículo
Redissolution and long-term transport of radionuclides released from a contaminated sediment: a numerical modelling study
(Elsevier, 2003)
A numerical model based upon residual circulation has been developed to simulate the long-term (years) transport of non-conservative radionuclides in the English Channel. The transfer of radionuclides between water, suspended ...
Artículo
A comparison of marine radionuclide dispersion models for the Baltic Sea in the frame of IAEA MODARIA program
(Elsevier, 2015)
Four radionuclide dispersion models have been applied to simulate the transport and distribution of 137Cs fallout from Chernobyl accident in the Baltic Sea. Models correspond to two categories: box models and hydrodynamic ...