Results 161 to 170 of about 126,405 (295)

Relationship between Low-Level Jet Properties and Turbulence Kinetic Energy in the Nocturnal Stable Boundary Layer [PDF]

, 2003
Robert M. Banta, Yelena L. Pichugina, Rob K. Newsom   +2 more
openalex   +1 more source

The role of orography in convection initiation over Hainan Island

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Up‐mountain‐directed buoyancy forcing owing to diurnal heating is responsible for the stronger updraft and more favorable thermodynamic conditions for deep convection initiation in the lee of mountains on Hainan Island. The buoyancy opposes the pressure gradient force (PGF) on the windward slope, promoting more low‐level windward ascent, and it phases ...
Guilin Lu, Daniel J. Kirshbaum, Huiwen Xue   +2 more
wiley   +1 more source

Turbulence‐resolving simulations of Hurricane Laura (2020): Insights into extreme winds and eyewall turbulence

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Using high‐resolution turbulence‐resolving simulations, we analyze the wind structure in the eyewall of Hurricane Laura (2020) and validate the results with observational data. Our findings show significant variations in wind speed and turbulence, especially above 50 m.
Miguel Sanchez‐Gomez, Georgios Deskos, Julie K. Lundquist   +2 more
wiley   +1 more source

The coherent structure of the kinetic energy transfer in shear turbulence [PDF]

, 2020
Siwei Dong, Yongxiang Huang, Xianxu Yuan, Adrián Lozano-Durán   +3 more
openalex   +1 more source

On the β$$ \beta $$‐effect in the baroclinic instability of a continuously stratified atmosphere

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We solve the quasi‐geostrophic equation numerically to analyze baroclinic instability in a continuously stratified atmosphere. On the β$$ \beta $$‐plane, deviations from classical models alter instability growth rates and modal structures, leading to the emergence of unstable lobes and a stable region at very large wavelengths.
Juan Vázquez Portillo, Antonio Segalini
wiley   +1 more source

Wind Tunnel Experiments on the Spatial Development of Fractal-Grid Turbulence (2nd Report, Measurements of Turbulent Kinetic Energy Transport by Using I- and X-Type Hot-Wire Probes)

, 2013
Inaba Takuto, Kouji Nagata, Yasuhiko SAKAI, Hiroyuki Suzuki, Osamu TERASHIMA, Hiroki Suzuki   +5 more
openalex   +2 more sources

A study of a free convective boundary layer using a parcel‐based Lagrangian model

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We study the development of a convective boundary layer forced by surface heating and growing into a stably stratified atmosphere above. We compare our results with several recent comprehensive direct numerical simulation (DNS) studies and find broad agreement, and often close quantitative agreement, despite fundamental differences in the numerical ...
Samuel Wallace, Steven Böing, Matthias Frey, David Dritschel   +3 more
wiley   +1 more source

Where numerical weather prediction meets large‐eddy simulations in a convective boundary layer during the FESSTVaL field experiment

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We exploit the Field Experiment on Sub‐mesoscale Spatio‐Temporal Variability in Lindenberg (FESSTVaL) to compare the performance of an NWP model at sub‐km resolutions with a traditional LES model. Focusing on clear‐sky ABL turbulence (June 14), shallow convective clouds and surface radiation (June 27), and deep convective cold pools (June 29), we find ...
Mirjana Sakradzija, Maike Ahlgrimm, Frank Beyrich, Chiel van Heerwaarden, Eileen Päschke, Ulrich Görsdorf, Bastian Kirsch, Juerg Schmidli, Noviana Dewani   +8 more
wiley   +1 more source

Characterizing trade‐wind shallow convection regimes in the open sea with a synergy of ship‐based vertical profiling observations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We use active remote sensing from a ship during the EUREC4$$ {\mathrm{EUREC}}^4 $$A campaign to characterize the environment before, during, and after precipitation in shallow convection. (1) Shallow clouds barely precipitate (only virga). Congestus clouds generate precipitation, occurring less often in the afternoon but with higher cloud fractions. (2)
Claudia Acquistapace, Sabrina Schnitt, Sibylle Krause, Nils Risse, Diego Lange, Dwaipayan Chatterjee   +5 more
wiley   +1 more source

Structural optimization of pit bionic drip irrigation emitter to improve hydraulic performance and anti-clogging performance. [PDF]

PLoS One
Zhao Z, Xu T, Su Y, Bao S, Yu Q.
europepmc   +1 more source