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Polar vortex

The stability of Mars' annular polar vortex

The stability of Mars' annular polar vortex

... Martian polar vortex was first inferred from Mariner 9 and Viking spacecraft ob- servations (Barnes 1984), though its persistence was unclear given the sparse spatial and temporal sampling of ...Martian ...

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Stability of polar vortex lattice in ferroelectric superlattices

Stability of polar vortex lattice in ferroelectric superlattices

... (polar vortex), as depicted in both this paper and Ajay et ...the vortex core to a rode-like configuration with decreasing aspect ratio is clearly shown ...from vortex to flux-closure ...

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Investigation of aerosol optical properties on regional climate forcing and Spatial and temporal distributions of aerosol and ozone associated with the Antarctic polar vortex processes

Investigation of aerosol optical properties on regional climate forcing and Spatial and temporal distributions of aerosol and ozone associated with the Antarctic polar vortex processes

... 1990], polar stratospheric aerosols are of ...winter polar vortex region of the Arctic and Antarctic stratosphere [McCormick et ...cold polar vortex requires a very weak transport of ...

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Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability

Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability

... the polar vortex and anomalous SPWs From previous publications, it is already known that a warm- ing (cooling) of the high-latitude stratosphere (mesosphere) and related changes in the dynamics are ...

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Insights into the three-dimensional Lagrangian geometry of the Antarctic polar vortex

Insights into the three-dimensional Lagrangian geometry of the Antarctic polar vortex

... two vortex tubes is captured by M and is visible in ...the polar vortex, around 45 ◦ E marked with a white arrow, and for the latter a white arrow also points to the described ...tating vortex ...

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A method for estimating the extent of denitrification of Arctic polar vortex air from tracer-tracer scatter plots

A method for estimating the extent of denitrification of Arctic polar vortex air from tracer-tracer scatter plots

... midwinter vortex measurements are available to compare with later measurements during or after vortex breakup, then an analysis of the type described in this paper might be ...

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Four Fourier transform spectrometers and the Arctic polar vortex: instrument intercomparison and ACE-FTS validation at Eureka during the IPY springs of 2007 and 2008

Four Fourier transform spectrometers and the Arctic polar vortex: instrument intercomparison and ACE-FTS validation at Eureka during the IPY springs of 2007 and 2008

... the polar spring, previous validation exercises have identified the highly variable polar vortex conditions of the spring period to be a challenge for validation ...

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A new class of vacillations of the stratospheric polar vortex

A new class of vacillations of the stratospheric polar vortex

... the vortex at the onset of the dynamical episode is similar to the behaviour found in Scott and Polvani (2006), an important aspect of the evolution found here is the rapid remerger of the two resulting ...

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A simple kinematic model for the Lagrangian description of relevant nonlinear processes in the stratospheric polar vortex

A simple kinematic model for the Lagrangian description of relevant nonlinear processes in the stratospheric polar vortex

... challenge for realistic ocean flows by identifying special hy- perbolic trajectories in the finite data set, called distinguished hyperbolic trajectories (DHTs), and by computing stable and unstable manifolds as curves ...

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Comparison of GOME-2/Metop-A ozone profiles with GOMOS, OSIRIS and MLS measurements

Comparison of GOME-2/Metop-A ozone profiles with GOMOS, OSIRIS and MLS measurements

... the polar vortex can be very dif- ferent compared to outside polar vortex atmosphere, the com- parisons have been done separately for the pixels being inside and outside the polar ...

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Update of the Polar SWIFT model for polar stratospheric ozone loss (Polar SWIFT version 2)

Update of the Polar SWIFT model for polar stratospheric ozone loss (Polar SWIFT version 2)

... the polar vortex in sunlight and the fraction of the polar vortex below the tem- peratures necessary for the formation of polar stratospheric ...the Polar SWIFT model introducing ...

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Satellite observations of middle atmosphere–thermosphere vertical coupling by gravity waves

Satellite observations of middle atmosphere–thermosphere vertical coupling by gravity waves

... the polar night jet show interesting variations with ...the polar vortex, where GWs generated by the po- lar night jet and mountain waves are expected to ...the polar vortex is known to ...

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Effects of Sudden Stratospheric Warming Events on the Distribution of Total Column Ozone over Polar and Middle Latitude Regions

Effects of Sudden Stratospheric Warming Events on the Distribution of Total Column Ozone over Polar and Middle Latitude Regions

... on polar vortex evolution and stratospheric warming can provide further insights on this ...to polar vortex ozone at 24 - 36 km during the 2002-2003 SSW was quantified using measurements by ...

15

Mathematical modeling and simulation of aquatic and aerial animal locomotion

Mathematical modeling and simulation of aquatic and aerial animal locomotion

... The new method can better capture the leading singular effect near the trailing edge, which improves the accuracy when dealing with some high nonlinear movements. The vorticity blows up near the the first released ...

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Experimental and CFD Analysis of Vortex Tube

Experimental and CFD Analysis of Vortex Tube

... 4. A REVIEW OF COMPUTATIONAL STUDIES OF TEMPERATURE SEPARATION MECHANISM IN VORTEX TUBE, by Thakare H. R., Patil Y.R. and Parekh A.D.., Bonfring International Journal of Industrial Engineering and Management ...

5

Seal and Sea lion Whiskers Detect Slips of Vortices Similar as Rats Sense Textures

Seal and Sea lion Whiskers Detect Slips of Vortices Similar as Rats Sense Textures

... pinnipeds like seals and sea lions use their whiskers to hunt their prey in dark and turbid situations. there is currently no theoretical model or hypothesis to explain the interaction between whiskers and hydrodynamic ...

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Research Status of Wind Energy Piezoelectric Generator

Research Status of Wind Energy Piezoelectric Generator

... on vortex-induced and micro impact in 2013, as shown in Figure ...of vortex-induced and collision, the device gained more energy than the only vortex-induced ge- ...

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Lift and Thrust Characteristics of Flapping Wing Aerial Vehicle with Pitching and  Flapping Motion

Lift and Thrust Characteristics of Flapping Wing Aerial Vehicle with Pitching and Flapping Motion

... Three-dimension unsteady vortex lattice method (UVLM) is used to calculate the aerodynamics in this paper. The diagrammatic drawing of UVLM is shown as Figure 1 by discretizing the continuous sheet on a wing into ...

8

Experiments and Computations on the Lift of Accelerating Flat Plates at Incidence.

Experiments and Computations on the Lift of Accelerating Flat Plates at Incidence.

... Edge Vortex (LEV) and a starting or Trailing Edge Vortex ...into vortex lift and a non-circulatory, ’virtual mass’ (inertial) force a ...The vortex lift is assumed to be caused by a LEV / TEV ...

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High Reynolds number vortex flows: Vortex/Rayleigh wave interaction and the compressible leading-edge vortex

High Reynolds number vortex flows: Vortex/Rayleigh wave interaction and the compressible leading-edge vortex

... non-linear vortex-wave interaction solutions in a compressible boundary layer whereas here we are simply considering the incompressible ...separate vortex or wave components in each region or ...The ...

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