1. Which of the following lapse rates always has the same value? ______a. enviro
ID: 297208 • Letter: 1
Question
1. Which of the following lapse rates always has the same value?
______a. environmental lapse rate
______b. dry adiabatic lapse rate
______c. moist adiabatic lapse rate
______d. (none of the above)
2. An updraft occurs
everywhere
in an air mass thunderstorm during which stage of its
evolution?
______a. cumulus or developing state
______b. mature stage
______c. dissipating stage
______d. (all of the above)
3. A narrow line of closely spaced advancing thunderstorm cells is called a
______a. a mesoscale convective complex.
______b. supercell.
______c. squall line.
______d. Texas brawl.
4. Which thunderstorms always rotate?
______a. air mass thunderstorms
______b. squall line thunderstorms
______c. supercells
______d. thunderstorm cells in a mescoscale convective complex
5. Atmospheric conditions required for supercell formation are
______a. warm moist air near the surface and much colder and drier air aloft.
______b. a lifting process.
______c. a lower-troposphere southerly jet and associated wind shear.
______d. (all of the above)
Explanation / Answer
1)B
Only the dry adiabatic lapse rate is constant (10C/km). The moist adiabatic lapse rate and environmental lapse rate vary with altitude.
2)B
Cumulus or developing statedominated by updraft - transporting warm, moist air upward
3) C
Squall lines Composed of individual intense thunderstorm cells arranged in a line or a band; occur along a boundary of unstable air, which give them a linear appearance.
4)D
5)D
Supercells are made up of several different parts. At the most basic level, a supercell features a deep/rotating updraft and a strong downdraft. An updraft is where warm and moist air rises and condenses within the storm and thanks to strong wind shear, the updraft and the downdraft are typically in different places — which allows the storm to thrive as it can ‘breathe’.
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