Large Data Set
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29 Terms
What are the five UK weather stations in the large data set?
Leuchars
Leeming
Heathrow
Hurn
Camborne
Which is the most North UK weather station?
Leuchars
Which is the most South UK weather station?
Camborne
Which 3 overseas weather stations are included in the large data set?
Beijing
Jacksonville
Perth
Which overseas weather stations are in the Northern hemisphere?
Jacksonville
Beijing
Which overseas weather station is in the Southern hemisphere?
Perth
What is daily mean temperature?
The average of the hourly temperature readings during a 24-hour period
What is daily mean temperature measured in?
‘C
What is daily total rainfall measured in?
mm
What does ‘tr’ or ‘trace’ mean?
Daily total rainfall that is less than 0.05mm
What is daily total sunshine recorded to?
The nearest tenth of an hour
What is daily mean windspeed measured in?
Knots
What is a knot?
A nautical mile per hour
What is one knot equivalent to?
1.15mph
What can daily mean windspeed be categorised according to?
The Beaufort scale
What does the Beaufort scale give?
Descriptive terms for the daily mean windspeed
What is daily mean wind direction measured as?
Bearings and compass directions
What is daily maximum gust measured in?
Knots
What is daily maximum gust?
The highest instantaneous windspeed recorded
What is daily maximum relative humidity given as a percentage of?
Air saturation with water vapour
What do relative humidities above 95% give rise to?
Misty and foggy conditions
What is daily mean cloud cover measured in?
Oktas or eighths of the sky covered in cloud
What is daily mean visibility measured in?
Decametres (Dm)
What is daily mean visibility?
The greatest horizontal distance at which an object can be seen in daylight
What is daily mean pressure measured in?
Hectopascals (hPa)
What does n/a stand for?
Not available
What are the only data values recorded for the overseas weather stations?
Daily mean temperature
Daily total rainfall
Daily mean pressure
Daily mean windspeed
What are the two time periods the large data set is recorded over?
May to October 1987
May to October 2015
For the first two weeks of May 1987, what will daily total sunshine, daily mean windspeed and daily maximum gust be?
N/a