Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows

Deleersnijder, Eric

Tracer and Timescale Methods for Passive and Reactive Transport in Fluid Flows - Basel MDPI - Multidisciplinary Digital Publishing Institute 2022 - 1 electronic resource (364 p.)

Open Access

Geophysical, environmental, and urban fluid flows (i.e., flows developing in oceans, seas, estuaries, rivers, aquifers, reservoirs, etc.) exhibit a wide range of reactive and transport processes. Therefore, identifying key phenomena, understanding their relative importance, and establishing causal relationships between them is no trivial task. Analysis of primitive variables (e.g., velocity components, pressure, temperature, concentration) is not always conducive to the most fruitful interpretations. Examining auxiliary variables introduced for diagnostic purposes is an option worth considering. In this respect, tracer and timescale methods are proving to be very effective. Such methods can help address questions such as, "where does a fluid-born dissolved or particulate substance come from and where will it go?" or, "how fast are the transport and reaction phenomena controlling the appearance and disappearance such substances?" These issues have been dealt with since the 19th century, essentially by means of ad hoc approaches. However, over the past three decades, methods resting on solid theoretical foundations have been developed, which permit the evaluation of tracer concentrations and diagnostic timescales (age, residence/exposure time, etc.) across space and time and using numerical models and field data. This book comprises research and review articles, introducing state-of-the-art diagnostic theories and their applications to domains ranging from shallow human-made reservoirs to lakes, river networks, marine domains, and subsurface flows


Creative Commons


English

books978-3-0365-3522-7 9783036535210 9783036535227

10.3390/books978-3-0365-3522-7 doi


Research & information: general
Biology, life sciences

residence time Three Gorges Reservoir tributary bay density current water level regulation marina water renewal transport timescales return-flow macro-tidal wind influence floating structures San Francisco Estuary Sacramento-San Joaquin Delta water age transport time scales hydrodynamic model tidal hydrodynamics stable isotopes reactive tracers tailor-made tracer design hydrogeological tracer test kinetics partitioning Mahakam Delta age exposure time return coefficient CART source water fingerprinting floodplain turbulence ADCP measurement wave bias Reynolds stress transport process passive tracers terrestrial dissolved substances Pearl River Estuary shallow lake meteorological influence sub-basins Delft3D partial differential equations boundary conditions geophysical and environmental fluid flows reactive transport interpretation methods diagnostic timescales age distribution function radionuclide tracer data collection antimony 125 (125Sb) tritium (3H) dispersion modeling English Channel North Sea Biscay Bay timescale transport hydrodynamic ecological biogeochemical coastal estuary flushing time shallow reservoir numerical modeling Lagrangian transport modelling coupled wave-ocean models ocean drifters wave-induced processes model skills n/a

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