The Large Data Set Flashcards

1
Q

What are the 5 UK weather stations?

A

Camborne, Hurn, Leuchars, Leeming, Heathrow

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2
Q

What are the 3 overseas weather stations?

A

Beijing, Jacksonville, Perth

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3
Q

What are the time periods of data collection?

A

May - October 1987 (6 months)
May - October 2015 (6 months)

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4
Q

What are the seasons covered?

A

May/June are end of spring
July-Sept is summer
October is Autumn
Perth Australia is in the southern hemisphere, so July-Sept is winter

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5
Q

When is the UK Great Storm?

A

the night of 15th-16th October 1987
Gusts up to 100 knots recorded

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6
Q

When were the Florida Hurricanes?

A

12 October 1987 Hurricane Floyd
1-2 October 2015 Hurricane Joaquin

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7
Q

What are the variables recorded?

A

Daily Mean Temperature
Daily total rainfall
Daily mean pressure
Daily mean windspeed, daily maximum gust
Daily mean wind direction, daily maximum gust direction
daily total sunshine
daily maximum relative humidity
daily mean total cloud
daily mean visibility

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8
Q

What are the units for daiuly mean temperature?

A

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9
Q

What are the units for daily total rainfall?

A

mm

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10
Q

What are the units for daily mean pressure?

A

hPa (hectopascal)
1 hPa = 100 Pa (pascals)

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11
Q

What are the units for daily mean windspeed and daily maximum gust?

A

knots (1kn = 1.15mph)
and Beaufort Scale

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12
Q

WHat is the Beaufort scale?

A

discrete, scale of 13 values
0 (calm < 1kn)
12 (hurricane, 64kn+

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13
Q

WHat is daily mean wind direction and daily maximum gust direction measured in?

A

bearing and cardinal direction

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14
Q

What are cardinal directions?

A

000 to 360 from North

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15
Q

WHat is daily total sunshine measured in?

A

hours

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16
Q

WHat is daily maximum relative humidity measured in?

A

% mist and fog if >95%

17
Q

What is daily mean total cloud measured in?

A

oktas (eigths 0 to 8)

18
Q

What are oktas?

A

Eights of the sky covered by cloud
discrete scale of 9 values
0 clear sky
8 completely overcast

19
Q

WHat is daily mean visibility?

A

Dm (decametres) 1Dm=10m

20
Q

What does n/a mean?

A

data not available

21
Q

What does tr mean?

A

trace 0 < rainfall<o.o5mm