Large data set Flashcards
Most far North
Leuchars
Most far south
Perth
Closest to furthest from the equator
Jacksonville Perth Beijing Camborne Hurn Heathrow Leeming Leuchars
In the UK
Camborne Leeming Leuchars Heathrow Hurn
Daily mean temperature
The average of the hourly recordings in a 24 hours period.
Daily total rainfall
Includes snow or ice that has melted before measuring.
Traces (tr)
Less than 0.05mm of rain/water.
Daily total sunshine
Recorded to the nearest 1/10 of an hour
Calm on beaufort scale and knots reading
0 (beaufort scale)
Less than 1 knot
Light on the beaufort scale and knots reading
1-3 (beaufort scale)
1-10 knots
Moderate on the beaufort scale and knots reading
4 (beaufort scale)
11-16 knots
Fresh on the beaufort scale and knots reading
5 (beaufort scale)
17-21 knots
Daily maximum relative humidity
Given as a percentage of air saturation. Above 95% is misty and foggy.
Measurements overseas do?
Daily mean temperature
Daily total rainfall
Daily mean pressure
Daily mean windspeed
1 knot = …. mph
1.15 mph
Daily mean visibility
Measured in decametres (Dm). The greatest horizontal distance an object can be seen in daylight.
Daily mean pressure units?
Measured in hectopascals (hPa)
Large data set values?
Always give to 1dp
Limitations of the large data set
Not all values are available (na)
