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mesocyclone的用法。与
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Radar can detect the mesocyclone inside the cloud, heralding the formation of a
tornado. Mesocyclones develop in supercell clouds. Consequently, a storm
emanating from a supercell cloud becomes tornadic when the cloud acquires a ...
2
The Tornado: Nature's Ultimate Windstorm
Like the role of the TVS and midlevel mesocyclone rotation, that of the RFD is not
yet understood. After being cut offby the RFD, the updraft may shift and produce a
new mesocyclone or mesocyclone core in a nearby part of the storm. This is ...
3
Severe Convective Storms and Tornadoes: Observations and ...
suggest that mesocyclone vertical propagation speed is nearly infinite (i.e.,
mesocyclones/TVSs instantly form in a column); earlier radar observations on
time scales of minutes simply could not resolve the true time scale of the vertical ...
Howard B. Bluestein, 2013
4
Southeastern Geographer: Summer 2012 Issue
Farmville), resulting in 12 deaths (NWS Tornado Damage Survey 2011)
EVOLUTION OF MESOCYCLONE STRUCTURE Between 2116 UTC and 2214
UTC the maximum radial velocity in the mesocyclone at the lowest elevation
angle was ...
David M. Cochran Jr., Carl A. Reese, 2012
5
The Dynamical Influences of Cloud Shading on Simulated ...
As the low-level mesocyclone continues to intensify, the surface mesolow
deepens via the ζ2 term in (1.8) and eventually reverses the vertical perturbation
pressure gradient near the mesocyclone. This drives a downdraft in close
proximity to ...
6
The Electrical Nature of Storms
Brandes 1 984) and numerical cloud models (e.g., Weisman and Klemp 1982,
Rotunno and Klemp 1985) suggested that the storm feature most characteristic of
supercell storms is the mesocyclone. a region of persistent vertical vorticity (i.e., ...
D. R. MacGorman, W. D. Rust, 1998
7
Britannica Book of the Year 2013
In addition, there are different signatures that are suggestive of particle-size
sorting. Such signatures have occurred just ahead of a tornado and its parent “
mesocyclone” (a rapidly rotating air mass within a thunderstorm), and the
differences ...
Encyclopaedia Britannica, Inc., 2013
The mesocyclone is forming to the far right of these photographs. If the rising air
in a thunderhead begins to spin, the column of spinning winds is called a
mesocyclone (mez-uh-SY-klon). As a mesocyclone twirls, it stretches toward
warm air ...
9
Tornado Alley: Monster Storms of the Great Plains
The region of midlevel cyclonic rotation or low-pressure area is the seed of the
mesocyclone. An upward-directed pressure gradient underneath the area of
rotation forces air up while it converges from all directions below (Fig. 3.7).
Howard B. Bluestein, 2006
10
Storm and Cloud Dynamics
It is not clear from their analysis if surfacebased vortices preceded the surface
penetration of the mesocyclone at which point tornado genesis occurred. In our
opinion, it is likely that, in general, the low-level mesocyclone will have to couple
...
William R. Cotton, George Bryan, Susan C. van den Heever, 2010
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Supercell thunderstorm causes widespread wind damage across …
A supercell thunderstorm contains a “deep and persistent rotating updraft” called a mesocyclone, according to the weather service, and this one ... «STLtoday.com, 七月 15»
Nicholas Altobelli
... a Home and its follow-up, 2014's Mesocyclone EP — Searching Through That Minor Key affirms the fact that Nicholas Altobelli is on a roll. «Elmore Magazine, 七月 15»
Nicholas Altobelli Keeps Threatening to Quit Music, So Why Hasn't …
When his divorce was finalized, Altobelli decided to halt the work he'd started on Searching and record an EP called Mesocyclone at a different ... «Dallas Observer, 七月 15»
Showcase: Wallclouds
Rotating wallclouds are an indication of a mesocyclone in a thunderstorm; most strong tornadoes form from these. Growing up in tornado alley, ... «PropertyOfZack, 六月 15»
Thunderstorm terminology explained
Supercell tornadoes are usually preceded by a mesocyclone a few minutes to a half hour or more before tornado formation, although most ... «WDBJ7, 六月 15»
Severe storms generate ominous wall clouds in DC area (Photos)
... like the main updraft, the mesocyclone, rotates higher in the storm. They form lower in sky than the other clouds because they contain cooler, ... «Washington Post, 六月 15»
No warnings, no sirens for Portland tornado
What meteorologists like to see and what makes it easier to detect is the circulation of a mesocyclone in mid-levels of a storm. More well ... «Fox17, 六月 15»
Watch a thunderstorm's life flash before your eyes
While supercells are often nudged along by wind, this one seems anchored in place as its rotating air mass — known as a mesocyclone ... «Mother Nature Network, 六月 15»
Funnel cloud or something else?
It could also be a very small mesocyclone. A mesocyclone is a much broader area of spin which encompasses more of the thunderstorm itself. «newsnet5.com, 六月 15»
The Beauty of Power: Mesocyclone over South Dakota
A supercell is a rotating thundercloud; the spinning vortex in the middle is called a mesocyclone. Conditions need to be just so to create one. «Slate Magazine, 六月 15»
