From June 18 to 19, 2013, the Ésera river in the Pyrenees, Northern Spain, caused widespread damage due to flooding as a result of torrential rains and sustained snowmelt. We estimate the contribution of snow melt to total discharge applying a snow energy balance to the catchment. Precipitation is derived from sparse local measurements and the WRF-ARW model over three nested domains, down to a ...

Over recent decades, there has been a clear progress across Europe towards reducing anthropogenic emissions (EEA, 2010). However, poor air quality remains an important public health issue, especially in urban environments. Airborne particulate matter (PM), tropospheric ozone (O3) and nitrogen dioxide (NO2) are the main problematic pollutants in Europe. Accurate air quality forecast system can o...

Infra-red properties of the triangle anomaly and the “anomaly pole” are elaborated and applied to the study of high-energy scattering in QCD, when the gauge symmetry is partially broken to SU(2). It is shown that the chiral flavor anomaly provides a wee-gluon component for Goldstone bosons that combines with interactions due the U(1) anomaly to produce an infra-red transverse momentum scaling d...

The hydrostatic and nonhydrostatic atmospheric solvers within the Model for Prediction Across Scales (MPAS) are tested using an extension of Jablonowski and Williamson baroclinic wave test case that includes moisture. This study uses the dry test case to verify the correctness of the solver formulation and coding by comparing results from the two different MPAS solvers and from the global versi...

Heuristic methods work often quite well on real-world instances of computational reasoning problems, contrasting the theoretical intractability of the problems. For example, state-of-the art satisfiability solvers solve routinely real-world instances with hundreds of thousands of variables; however no algorithm is known to solve instances with n variables in time 2 (and it is believed that such...

Deep-inelastic diffractive scaling violations have provided fundamental insight into the QCD pomeron, suggesting a single gluon inner structure rather than that of a perturbative two-gluon bound state. This paper derives a highenergy, transverse momentum cut-off, confining solution of QCD. The pomeron, in first approximation, is a single reggeized gluon plus a “wee parton” component that compen...

This paper presents a theoretical analysis of mechanical and electrical noise in the sense channel of micro-electromechanical systems (MEMS) vibratory gyroscopes. Closed-form expressions for the power spectral density (PSD) of the noise equivalent rate (NER) of gyroscopes in the open-loop and the force-rebalance operations are derived by using an averaged PSD model and an equivalent transfer fu...