Large eddy simulation (LES) of the Martian convective boundary layer (CBL) with a Mars-adapted version Weather Research and Forecasting model is used to examine impact aerosol dust radiative-dynamical feedbacks on turbulent mixing. The LES validated against spacecraft observations prior modeling. To study redistribution by coherent dynamical structures within CBL, two radiatively active distrib...

The climatological seasonal cycle of sea surface temperature (SST) in the tropical Pacific is simulated using a newly developed upper ocean model. The roles of vertical mixing, solar radiation, and wind stress are investigated in a hierarchy of numerical experiments with various combinations of vertical mixing algorithms and surface-forcing products. It is found that the large SST annual cycle ...

In this paper we investigate mixing and transport in correspondence of a meandering jet. The large-scale flow field is a kinematically assigned streamfunction. Two basic mixing mechanisms are considered, first separately and then combined together: deterministic chaotic advection, induced by a time dependence of the flow, and turbulent diffusion, described by means of a stochastic model for par...

Most CMIP5 models unrealistically form Antarctic Bottom Water by open ocean deep convection in the Weddell and Ross Seas. To identify the triggering mechanisms leading to Southern Ocean deep convection in models, we perform sensitivity experiments on the ocean model NEMO forced by prescribed atmospheric fluxes. We vary the ver-5 tical velocity scale of the Langmuir turbulence, the fraction of t...

A radon-based nocturnal stability classification scheme is developed for a flat inland site near Bucharest, Romania, characterised by significant local surface roughness heterogeneity, and compared with traditional meteorologically-based techniques. Eight months of hourly meteorological and atmospheric radon observations from a 60 m tower at the IFIN-HH nuclear research facility are analysed. H...

Lake Superior's ecosystem includes distinct nearshore and offshore food webs linked by hydrodynamic processes that transport water and tracers along and across shore. The scales over which these processes occur and their sensitivity to increasing summer surface temperatures are not well understood. This study investigated horizontal mixing between nearshore and offshore areas of Lake Superior o...

A multi-wavenumber theory is formulated to predict eddy diffusivities. It expands on earlier singlewavenumber theories and includes the wide range of wavenumbers encompassed in eddy motions. In the limiting case in which ocean eddies are only composed of a single wavenumber, the multi-wavenumber theory is equivalent to the single wavenumber theory, and both show mixing suppression by the mean f...

Motivated by the analysis of range queries in databases, we introduce the computation of the Depth Distribution of a set B of axis aligned boxes, whose computation generalizes that of the Klee’s Measure and of the Maximum Depth. In the worst case over instances of fixed input size n, we describe an algorithm of complexity within O(n d+1 2 logn), using space within O(n logn), mixing two techniqu...

Spatio-temporal pattern formation in contra-directional two-wave mixing in photorefractive crystals is investigated both numerically and analytically, taking high-modulation-depth effects into account. We use a modified two-wavemixing model that includes a correction function f ðmÞ, which is introduced as a phenomenological modification. Transverse instabilities arise only if the modulation dep...