G1250 - last section of powerpoints

Question 1

cumulonimbus clouds shape indicates ? and intensity of vertical motion

Answer 1

stability

Question 2

what is the definition of stability

Answer 2

determined by the response of an object displaced from its initial postion

Question 3

what are the three types of stability

Answer 3

stable
unstable
neutral

Question 4

how to define stable

Answer 4

object displaced from initial position returns to that position

Question 5

how to define unstable

Answer 5

object displaced from initial position accelerates away from that position

Question 6

how to define neutral

Answer 6

object displaced from Initial positionh remains were displaced

Question 7

how to define a parcel

Answer 7

a small hypothetical volume

Question 8

what are the three interactions of a parcel with the surrounding environment

Answer 8

flexible boundaries
no MASS exchange with surrouding environment
no ENERGY exchange with surrounding environment… adiabatic

Question 9

what are the rates at which parcels cool

Answer 9

dry adiabatic 10c/km
moist adiabatic 6c/km

Question 10

what is sounding

Answer 10

rate of temperature change in the environment is NOT constant

Question 11

sounding is the vertical temp profile of

Answer 11

the environment

Question 12

how do you determine atmosphere stability for a given sounding

Answer 12

parcel at surface
assume parcel and environment air are identical at the surface
lift parcel from surface to 1km

Question 13

if the temp of the parcel air is colder than that of the environment then parcel more dense than environment parcel sinks to surface

Answer 13

stable

Question 14

if the temp of the parcel air is warmer than that of the environment then parcel less dense than environment
parcel accelerates away from the surface

Answer 14

unstable

Question 15

if the temp of the parcel air is equal to that of the environment then parcel and environment densities are identical
parcel remains at 1km

Answer 15

neutral

Question 16

if the parcel is colder than the surrounding environment at 1km, then the parcel density will be ? that of the surrounding environment

Answer 16

greater than

Question 17

if the parcel is warmer than the surrounding environment at 1km then the parcel density will be ? than that of the surrounding environment

Answer 17

less than

Question 18

if the parcel and environment temperature at 1km are equal, then the parcel density will be ? then that of the surrounding environment

Answer 18

equal to

Question 19

if the parcel is colder than the surrounding environment at 1km, then the parcel will ? and the atmosphere is ?

Answer 19

sink, stable

Question 20

if the parcel is warmer than the surrounding environment at 1km, then the parcel will ? and the atmosphere is ?

Answer 20

rise, unstable

Question 21

if the parcel and environment temperatures at 1km are equale, then the parcel will ? and the atmosphere is ?

Answer 21

neither rise nor sink, neutral