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Posted by Mark
on June 8, 2009, 5:30 pm, in reply to "Re: About SW Monsoon"
121.1.11.98
Thank you very much sir for the explanation. I've read on your blog that the southwest monsoon will start to weaken due to high pressure over Taiwan-Japan. Are we likely to experience strong monsoon again after this?
--Previous Message--
: HI!!!
:
: Based on my analysis, what contributes this
: strong monsoon rain were enhanced by series
: of strong shortwave trough. shortwave trough
: is defined as "A disturbance in the mid
: or upper part of the atmosphere which
: induces upward motion ahead of it. If other
: conditions are favorable, the upward motion
: can contribute to thunderstorm development
: ahead of a shortwave trough" its effect
: are: Shortwaves are often associated with
: warm (WAA) or cold air advection (CAA),
: which influence temperature. Due to the way
: they curve the air that moves around them
: and the way air moves away from them,
: shortwaves produce positive curvature
: vorticity and positive shear vorticity,
: respectively. Ahead of a shortwave there is
: large-scale lift due to divergence from
: positive vorticity advection (PVA). This
: lift often sparks precipitation. In a capped
: environment, the lift generated by a
: shortwave may cool the inversion layer
: through adiabatic cooling, allowing for
: deep, moist convection.
:
: As this shortwave troughs moves more
: equatorward, like typhoons and low pressure
: areas, it affects the strength of southwest
: wind. That is to be observed by looking over
: IR/VIS weather satellite imagery like what
: happen last week a couple of shortwave
: trough pass over Northern Philipines which
: strengthen the aouthwest wind which known as
: monsoon. HERE ARE THE EXAMPLE IMAGERY DATED
: TODAY JUNE 8, 2009 AT 0130UTC
:
:
:
:
:
: --Previous Message--
: Hi. Since the SW monsoon started I've
: noticed
: that it seems it has become stronger. Last
: year if im not mistaken we only have strong
: monsoon rains only if there was a typhoon
: enhancing it. Are the current disturbances
: really that strong enough to induce strong
: monsoon rains?
:
: Also about the coming El Nino, are we going
: to have a short rainy season? Does this
: monsoon rains shows a transition from La
: Nina to El Nino condition, like the opposite
: of what happened June to early August 2007?
:
:
:
:
:
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