In order to synthesize exotic metamaterials, it was proposed use as elementary components of metamaterial microstructures so-called pantographic cells. The a mesomodel based on Euler–Bernoulli nonlinear beam theory is utilized for describing their behavior when characteristic sizes are the millimeters. With an in-house code, in which connecting hinges were modeled elastic extensional and torsio...

The authors employ data from the NOAA Wind Profiler Network to present a scale-discriminating vorticity budget for a mesoscale convective vortex (MCV) that was generated by a mesoscale convective system (MCS) in Oklahoma and Kansas on 1 August 1996. A spatial bandpass filter was used to divide observed wind into mesoscale and synoptic components. Then the authors sought sources and sinks of vor...

A method is described for parameterizing thermodynamic forcing by the mesoscale updrafts and downdrafts of mesoscale convective systems (MCSs) in models with resolution too coarse to resolve these drafts. The parameterization contains improvements over previous schemes, including a more sophisticated convective driver and inclusion of the vertical distribution of various physical processes obta...

A prototype thunderstorm nowcasting system, tentatively named iCAST (interactive Convective Analysis and Storm Tracking), is being developed at Environment Canada with an emphasis on optimizing the ‘human-machine mix’. The prototype aims to build on the strengths of the human forecaster in the thunderstorm nowcasting process while making the best use of machine computing capabilities. iCAST is ...

Mesoscale models, with grid resolution higher than synoptic and global models, and with advanced physical parameterizations, have been an important tool for meteorological research over the past twenty years. The research applications of mesoscale models, mostly through case studies or model sensitivity experiments in the 1980s, provided us with important physical insights into mesoscale weathe...

Mesoscale ocean eddies are ubiquitous coherent rotating structures of water with radial scales on the order of 100 kilometers. Eddies play a key role in the transport and mixing of momentum and tracers across the World Ocean. We present a global daily mesoscale ocean eddy dataset that contains ~45 million mesoscale features and 3.3 million eddy trajectories that persist at least two days as ide...