lec 15 Flashcards

1
Q

cumulus congestus

A

cumulus coulds that being to have vertical development. the starting stages of a cumulonimbus

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2
Q

pileus clouds

A

orographic uplift on top of a cumulus cloud

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3
Q

mammatus clouds

A

usually accompany cumulonimbus clouds
form via the downward movement within cumulonimbus cloudy

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4
Q

stratosphereic clouds

A

promotes the breakdown of the ozone layer due to composition
-water vapor ad nitric acid
rare formation due to the lack of water in strato

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5
Q

banner clouds

A

cooling air mass pushed up against a moutnain

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6
Q

lenticular cloud

A

bannerclouds but higher in the atmos
carry a wave like pattern
can continue for many km past the moutntains

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7
Q

how are weather condiotns illistrated on a map

A

symbols

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8
Q

lapse rate

A

the decrease in temp of an air parcel with increasing elevation or altitude

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9
Q

what do the three types of lapse rate together measure

A

atmospheric stability of an air parcel
(wheter it will rise fall or stay were it is)

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10
Q

adibatic processes

A

the chnage in temp of an air parcel without heat transfer.
due to changes in pressure with elevation
assumes cooling of a parcel as it rises

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11
Q

dry adiabtic lapse rate

A

the cooling rate of unsatrated air
RH can be 50, 22, or 99%
10C per km

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12
Q

saturated adiabatic lapse rate

A

the rate of colling of a saturated air parcel.
a parel will only become saturated when it (begins as 100%) reaches the LCL
5C per km

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13
Q

why is the SLR slower than DLR

A

becuase saturated air parcels release latent heat, colling it further. this recudeds the rate at which it warms

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14
Q

at what rate will a sinking air parcel warm?

A

the DLR always.
skining allows the parcel to warm. warming from any points will increase the max hum if the parcel and it will immidiately become unstat

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15
Q

what is the environmental lapse rate

A

the ACTUAL rate of temp change of still air with elevation.
both the DALR and SALR are theoretical

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16
Q

what influences the stability of our atmosphere

A

the relationship between the DLS and/ or the SLR with the ELR

17
Q

why don’t the ELR and the DLR or SLR equal each other?

A

because of other factors tat influences temp near the surface such as radiative cooling, fromtal interaction and the sun

18
Q

why does precipitation occur

A

an air parcel with a substantial amount of vapor is lifted to such a height that it cools below its dew point, commonly through an adiabatic cooling processes

19
Q

how does air change elevation in our atmosphere?

A

sue to changes in pressure- less pressure allows for rising and expanding (cooling) while more pressure causes falling and compression (warms).
note this occurs in an isolated air parcel

20
Q

what is the lifting condensation level

A

the elevation point where unsaturated air becomes saturated and begins to cool at the SLR as it continues to rise

21
Q

when is the LCL low?

A

when the air parcel is holding alot of water.
think about the sponge alaogy