LDS

What are the 5 UK weather stations

Camborne, Hurn, Heathrow, Leeming, Leuchars

What are the 3 international weather stations

• Jacksonville (Florida)

• Beijing (China)

• Perth (Australia)

When was the LDS recorded

• May-October 1978

• May-October 2015

Which areas in the UK are on the coast

• Camborne, Hurn and Leuchars

What is the weather in the southern hemisphere when it is winter in the northern hemisphere

• Summer

What is total rainfall measured in

• mm

What is mean windspeed measured in

• knots/kn

What is the mean windspeed measured using

• Beaufort scale

What are the corresponding values to the scales recording

• 0 = Calm, <1kn

• 1-3 = Light, 1-10kn

• 4 = Moderate 11-16kn

• 5 = Fresh, 17-21kn

How is mean visibility measured

• How far in meters can be seen into the horizon during daylight hours

How is mean temperature measured

• Degrees Celsius

How is total sunshine measured

• Nearest 1/10 th of an hour

How is maximum gust measured

• In kn

• Highest instantaneous windspeed

How is humidity measured

• % of air saturation with water vapour

• 100% being the max

How is mean cloud cover measured

• Oktas

• Means the number of 1/8ths the sky covers

How is mean pressure measured

• Hectopascal

• hPa

How is wind direction measured

• Bearings

What does tr mean

• Trace

• Use as 0 in calculations

Rough temperature range for each location (UK)

• Camborne = 10-20

• Hurn = 6-24

• Heathrow = 8-29

• Leeming = 4-23

• Leuchars = 4-19

Rough values for windspeed range in the UK

• Camborne = 3-18

• Hurn = 2-19

• Heathrow = 3-19

• Lemmings = 3-17

• Leuchars = 3-23

Rough temperature range for world locations

• Beijing = 8-33

• Jacksonville = 15-31

• Perth = 8-25

Rough windspeed range for world locations

• Beijing = 2-9

• Jacksonville = 1-12

• Perth = 4-14

Gust range (UK)

• 8-52 nm

Rainfall range

• 0-60 mm

Pressure range

• 988-1038 hPa

Windspeed range on Beaufort Scale

• Max 5 = fresh

Sunshine range (UK)

• 0-16 hours

Cloud cover

• 0-8 oktas