Chapter 1.1 Weather Flashcards

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1
Q

Some instruments used to measure the weather are;

A

thermometers, barometers, wind vanes, anemometers and rain guages set up in as Stevenson screen.

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2
Q

Other methods of measuring weather include;

A

radiosonde balloons, aircraft, ships and satellites.

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3
Q

An anemometer is an instrument that measures

A

wind speeds

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4
Q

A barometer is an instrument that measures

A

air pressure in millibars.

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5
Q

A thermometer is an instrument that is filled with

A

alcohol that allows readings to be taken of the temperature.

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6
Q

A weather station is a

A

site where instruments are set up to measure various elements of the weather

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7
Q

A weather station circle is a

A

drawn circle that is surrounded by various symbols representing the weather.

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8
Q

A synoptic chart is an map of an area showing

A

isobars, fronts and pressure systems from which weather forecasts can be made

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9
Q

In a weather symbol this means:

,

A

Drizzle

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10
Q

In weather symbols this means:

A

Rain Shower

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11
Q

In weather symbols this means;

.

A

Rain

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12
Q

In weather symbols this means

*

A

Snow

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13
Q

In weather symbols this means

A

Hail

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14
Q

In weather symbols this means

A

Thunder-storm

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15
Q

In weather symbols this means

A

Heavy rain

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16
Q

In weather symbols this means

A

Very heavy rain

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17
Q

In weather symbols this means

A

Sleet

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18
Q

In weather symbols this means

A

Snow shower

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19
Q

In weather symbols this means

A

mist

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20
Q

In weather symbols this means

A

fog

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21
Q

In weather symbols this means

A

clear sky

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22
Q

In weather symbols this means

A

one okta of cloud cover

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23
Q

In weather symbols this means

A

2 oktas of cloud cover

24
Q

In weather symbols this means

A

three oktas of cloud cover

25
Q

In weather symbols this means

A

four oktas of cloud cover

26
Q

In weather symbols this means

A

five oktas of cloud cover

27
Q

In weather symbols this means

A

six oktas of cloud cover

28
Q

In weather symbols this means

A

seven oktas of cloud cover

29
Q

In weather symbols this means

A

eight oktas of cloud cover

30
Q

In weather symbols this means

A

sky obscured

31
Q

In weather symbols this means

A

the wind speed is calm

32
Q

In weather symbols this means

A

The wind speed is 1-2 knots

33
Q

In weather symbols this means

A

The wind speed is 5 knots

34
Q

In weather symbols this means

A

The wind speed is 10 knots

35
Q

In weather symbols this means

A

The wind speed is 15 knots

36
Q

In weather symbols this means

A

The wind speed is 20 knots

37
Q

In weather symbols this means

A

The wind speed is 50 knots or more

38
Q

Latitude - The higher the latitute of a country of region,

A

the colder the weather generally tends to be during all four seasons.

39
Q

Distance from sea - Countries and areas that lie further from the sea tend to have

A

drier climates as a result Britain which is surrounded by sea has a wet climate.

40
Q

Air masses - Britian is affected by 5 different air masses and these are:

A

Polar maritime, Arctic maritime, polar continental, tropical maritime and tropical continental.

41
Q

The Polar Maritime air mass orginates from and brings

A

The North Atlantic Ocean and brings rainy and cool weather all year.

42
Q

The Arctic Maritime air mass orginates from and brings

A

The Arctic Ocean and brings Rain in the Summer and very cold temperatures and snow during winter.

43
Q

The Polar Continental air mass orginates from and brings

A

Central Europe and Asia and brings Dry and warm weather during the Summer and very cold weather in the winter

44
Q

The Tropical Continental air mass orginates from and brings

A

North Africa and brings Dry and hot weather

45
Q

The Tropical Maritime air mass orginates from and brings

A

Atlantic ocean and brings rainy and mild weather

46
Q

A depression is a

A

low pressure system

47
Q

There are five parts to a depression and in order they are:

A

Cold Sector, Warm front, Warm sector, Cold front and Cold Sector

48
Q

At the cold sector it is

A

dry with a few cirrus and altostratus clouds. Winds are South Easterly and air pressure is falling

49
Q

At the warm front there is

A

steady rain, it is slightly warmer and the clouds are low and thick. Air pressure is still falling.

50
Q

At the warm sector the

A

rain turns to drizzle or it may even be dry. It is slightly warmer and the sky clears with a few stratus clouds. Winds are coming from a South Westerly direction and the pressure stops falling.

51
Q

At the cold front there is

A

heavy rain, colder temperatures, large dark cumilonimbus clouds with the possibility of thunder.

52
Q

At the cold sector the

A

rain eases off and it is still cold. There are fewer clouds, North Westerly winds and the pressure starts rising.

53
Q

An anticylcone is an are of

A

high pressure.

54
Q

During Summer an anticylone will bring

A

Dry and hot weather. There will be light winds and bright sunshine. During the morning there will be mist and the occasional thunderstorm. It brings settled weather.

55
Q

During the winter an anticylone will bring

A

dry and very cold weather. Winds will be light and there will be bright sunshine. At night there will be frosts and during the morning fog. It brings settles weather