Results 71 to 80 of about 8,639 (236)
How consistently do ensemble prediction systems represent the growth of atmospheric uncertainty?
Quarterly Journal of the Royal Meteorological Society, EarlyView.Spread‐based diagnostics calculated for 12 ensemble prediction systems are compared to understand the consistency with which they represent atmospheric uncertainty growth. Good correlation between all these systems is found in the extratropics for a lead time range from 48 hr to between 96 hr and 192 hr.
Douglas Wood +3 more
wiley +1 more source
工程科学学报, 2015 To obtain characteristic pressure signals in the cavity of a self-resonating water jet nozzle, a detection system was built by using micro high-responsive pressure sensors.
HAN Jian +4 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.In this study, the synoptic conditions for modes of mesoscale convective systems (MCSs) in South Korea are generalized based on composite analysis. The preferred precipitation region, synoptic patterns, moisture transport, sea surface temperature and thermodynamic and dynamic instabilities are characterized according to four modes: convective cells (CC)
Jeong‐Eun Lee, GyuWon Lee
wiley +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.We investigate whether Central European heatwaves (HWs) forming under omega blocking differ from those enabled by subtropical ridges, in terms of both air‐mass origin and processes warming air parcels along their way. Using ERA5‐based backward trajectories and a Lagrangian temperature anomaly decomposition, we identify significant differences in the ...
Alexander Lemburg +3 more
wiley +1 more source
Mathematical Modelling and Analysis, 2006 We consider flows on a spherical surface and use a streamfunction formulation to derive a nonlinear equation governing steady-state flows in that geometry. We present some new vortex solutions to this equation.
Alobaidi, G., Haslam, M. C., Mallier, R.
openaire +3 more sources
Atmosphere, 2018 During the second half of the 20th century, in the littoral and pre-littoral areas of the Valencia region, the diurnal temperature range (DTR) registered a significant drop in summer (July and August).
Vicent Favà +2 more
doaj +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.The climatological‐error covariance matrix used in three‐dimensional variational data assimilation (3DVar) provides smooth and isotropic increments spread to long distances. In contrast, three‐dimensional ensemble variational data assimilation (3DEnVar) with a purely ensemble‐error covariance matrix provides inhomogeneous increments and contains the ...
Kaushambi Jyoti +3 more
wiley +1 more source
Stirring Vortices with Vorticity Holes
Procedia IUTAM, 2013 AbstractA vorticity hole is a region with, in absolute value, significantly lower vorticity than its surroundings. Here we discuss the dynamics of a Rankine vortex with two equal circular holes. Since a symmetric initial condition is assumed, the evolution depends on three parameters only: the vorticity drop, the hole radius and the distance between ...
openaire +1 more source
Vorticity Fields on Flow with Vortex System
Jurnal Teknik Sipil, 2009 The flow around a circular cylinder mounted normal to the channel bed is essentially a three-dimensional one. The flow upstream undergoes a separation of the turbulent boundary layer and rolls up to form a flow system, known as horseshoe vortex, which ...
Bambang Yulistiyanto
doaj +1 more source
The relationship between equatorial wave interaction and heavy rainfall in Southeast Asia
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study examines the statistical relationship between co‐occurring equatorial waves and heavy rainfall in Southeast Asia. Heavy rainfall is more closely related to combined wave activity than to individual waves in many regions of Southeast Asia. The figure shows GPM–IMERG rainfall (shading) and ERA5 850‐hPa winds (vectors) composited on days when ...
Samantha Ferrett +7 more
wiley +1 more source