Studied by 27 people
What are the 5 UK weather stations?
Leuchars
Leeming
Heathrow
Hurn
Camborne
What are the 3 overseas weather stations?
Jacksonville, USA
Beijing, China
Perth, Australia
Units for daily mean temperature
Degrees celsius
Amount of rainfall below which the day is recorded as ‘tr’
0.05mm
What is daily total sunshine recorded to?
Nearest 10th of an hour
What are daily mean windspeed and maximum gust measured in?
Knots
1 knot =
1.15 mph
4 terms of the Beaufort scale
Calm (0 & <1 knot)
Light (1-3 & 1-10 knots)
Moderate (4 & 11-16 knots)
Fresh (5 & 17-21 knots)
Relative humidities above this give rise to misty and foggy conditions
95%
What is daily mean cloud cover measured in?
Oktas (8ths of sky covered by cloud)
What is daily mean visibility measured in?
Decameters (Dm) - the greatest hz distance @ which an object can be seen in daylight
What is daily mean pressure measured in?
Hectopascals (hPa)
What happened in mid-October 1987 that may skew some UK data?
The great storm of 1987 - wind speeds increased; south particularly affected
Data cleaning
Considering and removing from calculations days that have missing recordings - not every day has a recording for every variable
Note 
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