Large Data Set Flashcards

(18 cards)

1
Q

What time-frame does the data set cover?

A

May - October
1987 - 2015

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2
Q

What are weather conditions like in winter? (Oct-April)

A

Windier, Wetter, Darker, Colder

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3
Q

What are weather conditions like in summer? (May-Sept)

A

Warmer, Drier, Brighter

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4
Q

Name the weather station from South to North

A

Cambourne (coastal), Hurn, Heathrow, Leeming, Leuchars (coastal)

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5
Q

What are weather conditions like when travelling further north in the UK?

A

Increase in rainfall, increase in maximum daily hours of sunshine, average amount of sunshine decreases (increasing cloud cover), increase in pressure

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6
Q

What is Daily Mean Temperature measured in?

A

°C

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7
Q

What is Daily Total Rainfall measured in?

A

mm, includes trace (tr) values when there is not enough data (use 0.025mm or 0mm instead)

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8
Q

What is Daily Total Sunshine measured in?

A

Hours

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9
Q

What is Cloud Cover measured in?

A

Oktas (0-8 integer values only)

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10
Q

What is Humidity measured as?

A

Percentage (integer)

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11
Q

What is Daily Mean Visibility measured in?

A

Decametres (Dm), round to nearest 100

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12
Q

What is Daily Mean Pressure measured in?

A

hectoPascal (hPa, integer values only)

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13
Q

How do you “clean” data?

A

Replace trace values with 0mm or 0.025mm, removing N/A entries from data samples

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14
Q

Name measures of wind and their units

A

Daily Mean Windspeed (knots, integer values only)
Windspeed (Beaufort Conversion - qualitative eg. light - moderate)
Daily Maximum Gust (knots. integer values only)
Wind/Gust direction (bearings OR compass direction in CARDINAL DIRECTIONS ie. blowing from direction…)

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15
Q

Name all International Stations

A

Jacksonville, Florida USA
Beijing, China
Perth, Australia

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16
Q

Name features of Jacksonville’s Station

A

Hot summers, hurricanes in October, mean windspeed still relatively low

17
Q

Name features of Beijing’s Station

A

Hot & wet summers, colder winters

18
Q

Name features of Perth’s Station

A

Flipped seasons, southern hemisphere