On the Ability of Dry Tropical-Cyclone-like Vortices to Withstand Vertical...

Journal of the Atmospheric Sciences;  January 1, 2004 ;     700+ words ......tropical-cyclone-like vortices to resist vertical shear is discussed. An idealized model calculation...under the influence of environmental vertical shear. It is shown that the outer portion...vortex is of importance. The average vertical shear across the center of the vortex is...

A New Look at the Problem of Tropical Cyclones in Vertical Shear Flow:...

Journal of the Atmospheric Sciences;  January 1, 2004 ;     700+ words ......of tropical cyclone (TC) vortices in vertical shear How is presented. To elucidate the...vortices (Ro > 1) in unidirectional vertical shear. Moreover, intense TC-like, but initially...observationally based TC-like vortices in vertical shear, the existence of a "downshear-left...

Long-lived mesoconvective vortices and their environment. Part II: Induced...

Monthly Weather Review;  October 1, 2000 ;     700+ words ......from the interaction of the ambient vertical shear with midtropospheric cyclonic vortices...destabilization over a range of ambient vertical shear strengths and vortex characteristics...displacements relative to the ambient vertical shear vector depends on the relative strength...

Structure of Highly Sheared Tropical Storm Chantal during CAMEX-4

Journal of the Atmospheric Sciences;  January 1, 2006 ;     700+ words ......down to the convective scale. Large vertical shear (850-200-hPa shear magnitude range ...in the upshear right quadrant. The vertical shear profile is, however, different from...lowest levels and the deep tropospheric vertical shear is on the order of 10-12 m s^sup -1...

Climatology of Vertical Wind Shear over the Tropical Atlantic

Journal of Climate;  June 15, 2006 ;     700+ words ......the mean and extreme cases of vertical shear within the tropical Atlantic...contemporaneous relationship of vertical shear with El Nio-Southern Oscillation...meridional components of the vertical shear reveals interannual and multidecadal...

Environmental vertical wind shear with Hurricane Bertha (1996)

Weather and Forecasting;  April 1, 2003 ;     700+ words ......the vortex alignment. Environmental vertical shear measurements throughout Hurricane Bertha...compared with numerical-model-derived vertical shear directions. The changes in the vertical shear analyses are discussed with respect...

CONFERENCE NOTEBOOK

Bulletin of the American Meteorological Society;  January 1, 2006 ;     700+ words ......TROPICAL CYCLONES RESIST DESTRUCTION FROM VERTICAL SHEAR It is well known that a tropical cyclone...and tends to tilt downshear. Thus, vertical shear is considered inimical to TC development...intensify against the destructive action of vertical shear? and b) What are the roles of ...

Mesoscale Convective Vortices Observed during BAMEX. Part II: Influences...

Monthly Weather Review;  June 1, 2007 ;     700+ words ......conditionally stable environments with strong vertical shear. Two other MCVs in moderate-to-strong vertical shear have localized redevelopment of deep...strongest of the five MCVs occurs in weak vertical shear and has widespread secondary convection...

Reexamining the Near-Core Radial Structure of the Tropical Cyclone Primary...

Journal of the Atmospheric Sciences;  February 1, 2005 ;     700+ words ......tilted TC vortex will realign and resist vertical shear or tilt over and shear apart. Fully...theoretical studies of TC evolution in vertical shear. The relationship of the current findings...nonaxisymmetric vortex response to impinging vertical shear. Using initially barotropic ...

Environmental Dynamical Control of Tropical Cyclone Intensity-An...

Monthly Weather Review;  January 1, 2007 ;     700+ words ......the fast translation and strong vertical shear are negative to both TC intensification...sup -1^, and in relatively weak vertical shear. The overwhelming majority of...environmental steering flow and vertical shear are both weak. The results show...their large-scale environmental ...

AFL: Craig expects maximum intensity from the Dockers

AAP Sports News (Australia);  July 20, 2007 ;     350 words ......Australia) 07-20-2007 AFL: Craig expects maximum intensity from the Dockers By Todd Cardy ADELAIDE...coach Neil Craig says he is expecting maximum intensity from Fremantle in tomorrow's clash...it, so that's why we're assuming maximum intensity from the Fremantle players and I...

wind shear

A Dictionary of Geography;      41 words ...wind shear The local variation of the wind vector , or any of its components, in a given direction. A change in wind speed and/or direction with height is the vertical shear. If the wind is geostrophic , the vertical shear is given by the thermal wind equation .

Hurricane maximum intensity: Past and present

Monthly Weather Review;  July 1, 2001 ;     700+ words ......strides made into determining the maximum intensity of hurricanes. Concentrating on the most recent attempts to understand the maximum intensity problem, the theories of Holland...role in the determination of the maximum intensity and that the Emanuel model is the...

Numerical Simulation of Hurricane Bonnie (1998). Part I: Eyewall Evolution...

Monthly Weather Review;  January 1, 2004 ;     700+ words ......during which period its environmental vertical shear increases substantially. It is found...eyewall convection is associated with the vertical shear of environmental flow. In a recent...over water. They found that under the vertical shear of exceeding 10 m s'~ between 200 and...

The Influence of Horizontal Environmental Variability on Numerically...

Monthly Weather Review;  October 1, 2007 ;     700+ words ......horizontal variations in environmental vertical shear in an idealized, controlled manner...Simulations in which steady-state vertical shear varies spatially are presented for...combinations of buoyancy and unidirectional vertical shear. Both the buoyancy and the vertical...