Conditionally unstable
Can anyone explain the answer below please? If we assume dlr and slr at 3 and 1.5 respectively, surely the air is stable? Because in both cases the parcel is cooling per 1000ft, but the outside air temperature is warming?
If the temp at 1000ft is +18 and the temp at 2000ft is +20, what would you expect the air between those altitudes to be? ✓ Conditionally unstable |
I think they must have got the height/temps the wrong way round!
|
Which were the other options?
@FoxMoth: you may well be right, but couldn't this be a case of temperature inversion, too? |
Inversions are interesting beasties. They are normally very stable and can cause fog to lie in a valley for several days. A bad case was the London smogs of the 1950s which caused many fatalities.
The hot upper layer can contain a lot of moisture and the arrival of some turbulence to cause mixing will make life rather interesting rather quickly. |
I can't remember the other options I'm afraid.
|
FoxMoth: you may well be right, but couldn't this be a case of temperature inversion, too? |
Air is conditionally unstable if, when it becomes saturated, it becomes unstable. |
All times are GMT. The time now is 06:18. |
Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.