Results 101 to 110 of about 10,485 (275)

Atmospheric transport and critical layer mixing in the troposphere and stratosphere

open access: yes, 2012
This thesis aims to improve the understanding of transport and critical layer mixing in the troposphere and stratosphere. A dynamical approach is taken based on potential vorticity which has long been recognised as the essential field inducing the flow ...
Smy, Louise Ann
core  

Potential vorticity and inertia–gravity waves

open access: yesGeophysical & Astrophysical Fluid Dynamics, 2012
Peer ...
openaire   +2 more sources

Dynamics and thermodynamics of the fast and slow Madden–Julian Oscillation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The results of this study highlight the MJO as a complex phenomenon, the behavior of which is driven by an interplay of thermodynamic and dynamic processes. The MJO's distinct speeds are controlled by different mechanisms: slow MJOs propagate eastward primarily via horizontal moisture advection, fast MJOs by vertical moisture advection.
Víctor C. Mayta   +3 more
wiley   +1 more source

The physical and synoptic‐dynamical differences between warm days, hot days, and heatwaves during summer in Victoria, Australia

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
During the day, there is composite mean cold advection in the boundary layer on warm days (WDs), hot days (HDs) and heatwaves (HWs). There is weaker surface‐sensible heating on HDs and HWs. A nocturnal jet advects warm air on HDs and HWs. There is a strong and slow‐moving upper‐level anticyclone on HWs.
Qinuo Huang   +3 more
wiley   +1 more source

Balance, gravity waves and jets in turbulent shallow water flows

open access: yes, 2009
This thesis contains a thorough investigation of the properties of freely decaying turbulence in a rotating shallow water layer on a sphere. A large number of simulations, covering an extensive range of Froude and Rossby numbers, have been carried out ...
Shipton, Jemma
core  

A GENERALIZED POTENTIAL VORTICITY IN THE OCEAN [PDF]

open access: yes, 1966
With the aid of Ertel's vorticity theorem (1942), a generalized potential vorticity for a compressible and baroclinic ocean is derived by examination of the thermodynamical property of potential density. The new potential vorticity - W•(7p*/p (W absolute
KAWAI, Hideo
core  

Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China

open access: yesHigh Voltage, EarlyView.
ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li   +9 more
wiley   +1 more source

An Atmospheric Instability Perturbation Approach for Ensemble Forecasts and Its Application in Heavy Rain Cases

open access: yesJournal of Advances in Modeling Earth Systems
An ensemble perturbation approach focusing on Atmospheric Instability Perturbation was proposed. This approach perturbs diagnostics quantifying atmospheric instability and calculates corresponding model state perturbations through a data assimilation ...
S. Wang, J. Min, X. Li, X. Qiao
doaj   +1 more source

Tubes or Ribbons? Comparing Texture‐space Visualization for Multivariate Line Data

open access: yesComputer Graphics Forum, EarlyView.
Abstract Multivariate line data is critical for analyzing flow fields, agent systems, and dynamic trajectories. Embedding secondary variables along spatial paths using surface‐based primitives such as ribbons and circular tubes introduces challenges related to perspective, scale, and distortion.
B. Russig   +3 more
wiley   +1 more source

Warm Conveyor Belts in the ERA-Interim Dataset (1979–2010): Part I: Climatology and Potential Vorticity Evolution [PDF]

open access: yes, 2014
A global climatology of warm conveyor belts (WCBs) is presented for the years 1979–2010, based on trajectories calculated with Interim ECMWF Re-Analysis (ERA-Interim) data.
Joos, Hanna   +3 more
core   +1 more source

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