Large Data Set Flashcards

1
Q

What are the 5 weather stations in the uk (south to north)

A

Cambourne
Hurn
Heathrow
Leemjng
Leuchers

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2
Q

What is the weather in the uk coastal stations

A

Windy and Rainy

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3
Q

What is the weather like in the south stations

A

Warmer and sunnier

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4
Q

When is the large data set recorded for (2)

A

Only 6 months
May to October 1987 and 2015

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5
Q

What are the 3 international stations

A

Perth Australia

Beijing China

Jacksonville Florida

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6
Q

What makes Perth station unique

A

The summer and winter is switched around ( it’s in Southern hemisphere)

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7
Q

What makes Beijing n China unique (2)

A

It has really hot and really rainy in summer

Gets very cold in winter

(More extremes)

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8
Q

What makes Jacksonville Florida unique (3)

A

2 hurricanes in October 87 and 15

Prone to hurricanes

Very warm

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9
Q

What does tr mean when measuring rainfall
How is it used

A

Trace

Means there’s less than 0.05mm of rain

Treated as 0 in any calculations

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10
Q

What does n/a mean in data

What is a problem with this

A

Reading is not available

Can’t be used in a sample

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11
Q

How is cloud cover measured (4)

A

In oktas
0-8
Discrete values

Measures how many 8ths of sky is covered in clouds

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12
Q

How is max gust measured (2)

A

Knots
1 knot is 1.15mph

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13
Q

When was the great storm in the uk

A

October 15/16 in 1987

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14
Q

What 2 places are coastal and so what can we assume about them (uk)

A

Cambourne and Leuchars
Windier

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15
Q

If temperature increases what 3 variables are affected and how

A

Sunshine increases hours
Rainfall decrease mm
Wind speed decreases

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16
Q

As we move further north what are 3 trends

A

Temperature decreases

Rainfall increases

Maximum hours of sunshine increases (length of days longer)
Average - decreases

17
Q

What is the typical range of temperature in the uk
What is a detail

A

5 to 21
Warmer in summer

18
Q

What is the typical range of daily total rainfall
What are 2 details

A

0 to 20
It is not a symmetrical distribution
Many 0 or trace values

19
Q

Typical range of sunshine hours in uk
Detail

A

0 to 14 hours
More sunshine in summer

20
Q

2 details of cloud cover

A

Integers
Measures fraction of sky covered

21
Q

What are the typical values for humidity in uk
What do values above 95% mean

A

70 to 100%

Fog

22
Q

How is daily mean visiblity measured
What are typical values in uk
What is a detail

A

Decametres = 10m

200 to 4000

Rounded to nearest 100

23
Q

What is daily mean pressure
What is it measured in

A

How much the atmosphere is pushing down
Hpa

24
Q

What is the typical range of pressure in uk

A

990 to 1040

25
Q

How is data cleaned

A

Replacing trace of water with either 0mm or 0.025mm because trace is between 0 and 0.05

26
Q

What is typical range knots in uk Of wind speed
How is it turned qualitative

A

3 to 10

Wind speed Beaufort conversion - light to moderate (most days in uk are light )

27
Q

Range fit daily maximum gust

A

8 to 50 knots

28
Q

Range for wind dust and direction in bearings

Examples of cardinal direction in uk

A

10 to 360 degrees

North
south west
East north east

29
Q

What is wind direction

A

Where wind is blowing from not to

30
Q

What are the only things measured internationally (5)
Units

A

Temperature
Rainfall
Pressure
Wind speed rounded to 1dp
Beafurt conversion of windspeee

Same units except windspeed

31
Q

Rainy in Beijing?

A

In summer