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REVIEWER > PRECIPITATION > Flashcards

PRECIPITATION Flashcards

1
Q

General term for all forms of moisture originating from clouds and falling to the ground

A

Precipitation

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2
Q

Precipitation happens when water falls down to the earth surface. This water might be ___ & ____

A

Liquid or Solid State

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3
Q

consists of waterdrops under 0.02-in. diameter

A

Drizzle

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4
Q

consists of drop usually greater than 0.02-in. diameter

A

Rain

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5
Q

is the ice coating formed when drizzle or rain freezes

A

Glaze

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6
Q

is frozen raindrops cool to the ice stage while falling through air at subfreezing temperatures.

A

Leet

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7
Q

precipitation in the form of Ice crystals resultung from sublimation

A

Snow

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8
Q

is made up of a number of ice crystals fused together.

A

Snowflake

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9
Q

is precipitation in the form of balls or lumps of ice over 0.2-in. diameter formed by alternative freezing and melting

A

Hail

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10
Q

Types of Precipitation

A

Convective precipitation
Cyclonic precipitation
Orographic precipitation

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11
Q

Forms of precipitation

A

Snow
Snowflake
Hail

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12
Q

is the interfere between two distinct air masses.

A

Front

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13
Q

is caused by natural rising of warmer, lighter air in colder, denser surroundings.

A

Convective precipitation

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14
Q

results from the lifting of air converging into a low-pressure area, or cyclone.

A

Cyclonic precipitation

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15
Q

results frok mechanical lifting over mountain barriers.

A

Orographic precipitation

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16
Q

is a large low pressure region with circular wind motion

A

Cyclone

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17
Q

Two types of Cyclone

A

Tropical cyclones
Extra tropical cyclones

18
Q

are regions of high pressure, usually of harge areal extent. It cause clockwise wind circulation in the northerm hemisphere.

A

Anticyclones

19
Q

is the amount of precipitation, the form of rain (water from clouds), that descends onto the surface of Earth

A

Rainfall

20
Q

is falling snowflakes or snow crystals or also the accumulation of snow during a specified period of time.

A

Snowfall

21
Q

is the simplest avareging method but can only be relied on small, flat areas.

A

Arithmetic mean method

22
Q

is a graphical technique that considers the weights of each rain gages based on the relatice measurements of their respective area coverage.

A

Thiessen polygon

23
Q

is also a graphical technique that involves drawing isohyets or contours that are equal to the respective rainfall gage over an area based on point measurements.

A

Isohyetal method

24
Q

is used when the normal annual precipitation at each of the index stations is less or more than 10 percent of that for the station with the missing record.

A

Normal ration method

25
Q

is defined as a change in the amount of precipitation that falls naturally in a certain location.

A

Variation of precipitation

26
Q

where conditions are crucial for the formation of snowflakes

A

Atmosphere

27
Q

the atmophere is below freezing (0 degrees Celcius or 32 degrees Fahrenheit)

A

Supercooling

28
Q

These are microscopic particles, such as dust, pollen, or other solid particles

A

Ice Nuclei

29
Q

when the air is holding more moisture than it can actually accmmodqte at a given temperature.

A

Supersaturation

30
Q

When supersaturated air encounters an ice nucleus

A

Deposition

31
Q

As the ice crystals grow, they start to consume surrounding water vapor

A

Vapor Diffusion

32
Q

As rhe ice crustals fall through the atmosphere, they may collide woth other ice crystals

A

Aggregation

33
Q

once the snowflake becomes too heavy for the updrafts in the atmosphere to support, it falls to the ground as snow.

A

Precipitation

34
Q

it indicates the typical amount of snow that falls in a given period

A

Average Snowfall

35
Q

A lower-than-average snowfall may indicate drier or milder conditions than usual.

A

Below-average snowfall

36
Q

higher-than-average snowfall suggest wetter or colder conditions

A

Above-average snowfall

37
Q

Examining the variability in snowfall data

A

Snowfall Variability

38
Q

it suggests relatively consistent snowfall patterns from year to year.

A

Low variability

39
Q

indicates significant fluctuations in snowfal amounts

A

high variability

40
Q

measures how often snowfall events occur within a specific timeframe

A

Snowfall Frequency

REVIEWER (6 decks)

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