Satoshi Tajima

Research

Nonlinear and chaotic transport in heterogeneous porous media

Time-dependent dispersion — Concentration distributions calculated from the classical macrodispersion model, a new time-dependent dispersion model (formula), and direct particle-tracking simulations (Tajima et al. (2024) AWR )

TED formula — Concentration distributions calculated from the classical macrodispersion model, a new time-dependent dispersion model (formula), and direct particle-tracking simulations (Tajima et al. (2024) AWR )

Lyapunov exponent — Poincaré section and temporal evolution of finite-time Lyapunov exponents (Tajima & Dentz (2025) AWR )

Pathlines — Pathlines illustrating advective particle transport in heterogeneous porous media, with particles released from the land side (red, left) and the sea side (blue, right). (Tajima & Dentz (2025) WRR )

"Time-dependent dispersion coefficients for the evolution of displacement fronts in heterogeneous porous media"
Tajima et al. (2024) AWR
"Transient forcing in heterogeneous aquifers drives solute containment and chaotic mixing"
Tajima & Dentz (2025) AWR
"Tides and heterogeneity drive trapping and chaotic mixing in coastal aquifers"
Tajima & Dentz (2025) WRR

Flow and transport in the coastal surface-subsurface continuum

Storm surge — Schematic of storm surge in the coastal surface–subsurface continuum (Tajima et al. (2025) ESS Open Archive )

Groundwater resources and climate adaptation in small islands

Schematic of climate change impacts — Hydrogeological settings of a Pacific Island and projected climate–change impacts (Tajima et al. (2025) ESS Open Archive ; Illustration by Lisa Vogel)