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In meteorology, the equilibrium level (EL), or level of neutral buoyancy (LNB), or limit of convection (LOC), is the height at which a rising parcel of air is at a temperature of equal warmth to it.

Diagram showing an air parcel path when raised along B-C-E compared to the surrounding air mass Temperature (T) and humidity (Tw)

This means that unstable air is now stable when it reaches the equilibrium level and convection stops. This level is often near the tropopause and can be indicated as near where the anvil of a thunderstorm because it is where the thunderstorm updraft is finally cut off, except in the case of overshooting tops where it continues rising to the maximum parcel level (MPL) due to momentum. More precisely, the cumulonimbus will stop rising around a few kilometres prior to reaching the level of neutral buoyancy and on average anvil glaciation occurs at a higher altitude over land than over sea (despite little difference in LNB from land to sea).[1]

See also [edit]

References [edit]

  1. ^ Takahashi, Hanii; Z. Luo (2012). "Where is the level of neutral buoyancy for deep convection?". Geophys. Res. Lett. 39 (L15809). doi:10.1029/2012GL052638. 

External links [edit]


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29 news items

 
Bloomberg
Mon, 20 May 2013 16:40:19 -0700

Cardenas has said repeatedly that government intervention can help weaken the peso toward its “equilibrium” level of about 1,900 per U.S. dollar. The currency has strengthened 22 percent since the start of 2009, the best performer after the Chilean ...
 
Tbo.com
Thu, 16 May 2013 21:11:20 -0700

However, “Because lot development is not keeping up with the new starts demand, lot supply could drop below an equilibrium level by mid-2014,” Tony Polito, a Metrostudy official in Tampa, said in a news release. Bill Eshenbaugh, a prominent land broker ...

Houston Chronicle (blog)

Houston Chronicle (blog)
Thu, 16 May 2013 11:41:03 -0700

They are the product of very strong updrafts — warm, rising air — in the core of these storms, which pushes the clouds above the storms' general equilibrium level near the tropopause and into the lower stratosphere, some 6 to 8 miles above the Earth ...
 
Wall Street Journal
Fri, 03 May 2013 03:10:31 -0700

"The last time the PBOC widened the band, the yuan was at equilibrium level, but currently it has yet to reach that stage." "There's still some expectation for yuan appreciation, but that has been tempered somewhat after the PBOC set a higher fixing ...

Times of Oman

Times of Oman
Mon, 06 May 2013 09:37:01 -0700

In 2012, the supply of youth labour exceeded its equilibrium level by 30 per cent. Not only was the unemployment rate 21.6 per cent, but the shortfall in hours actually worked over desired hours increased the underemployment index by a further 8.4 per ...
 
Economic Times
Tue, 07 May 2013 03:59:30 -0700

Some analysts reckon letting the market find an equilibrium level for the yuan too quickly would be fraught with risk, and doubted whether the authorities would implement measures any time soon. "The kind of appreciation to bring the CNY to the point ...
 
Xinhua
Fri, 03 May 2013 18:04:00 -0700

That's because China's trade surplus to GDP ratio has already dropped from a previous high of 6 percent to 3 percent, the internationally recognized "equilibrium" level. In the end, the currency exchange rate is influenced by a variety of factors, such ...

Slate Magazine (blog)

Slate Magazine (blog)
Mon, 22 Apr 2013 06:56:05 -0700

What we really need is a relaxation of zoning curbs on multifamily construction, so as we shift back into a lower equilibrium level of homeownership, people can have decent places to live. Want more of your favorite content on the MSN homepage? Try the ...
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