Large Data Set Info Flashcards
5 British Data Set Locations ordered North - South
-Leuchars
-Leeming
-Heathrow
-Hurn
-Camborne
3 overseas locations ordered North - South
-Jacksonville
-Beijing
-Perth
Important information to remember about overseas locations
All on the coast
How do you measure daily maximum temperature?
Degrees Celsius
How do you measure daily total rainfall?
Mm
How do you measure daily total sunshine?
Hours
How do you measure daily maximum humidity?
% - mist and fog if greater than 95%
How do you measure daily maximum wind speed/wing gust?
Knots (1kn = 1.15mph) + Beaufort Scale
What is the Beaufort Scale?
A discrete data set of 13 values from 0 (calm, less than 1kn) to 12 (hurricane, greater than 64kn)
How do you measure daily mean wind direction/gust direction?
Bearing and Cardinal Direction(North, South,East,West etc.)
How do you measure cloud coverage?
Oktas - discrete scale of 9 values (0-8)
How do you measure visibility?
Dm - decametres, 1Dm = 10m
How do you measure pressure?
hPa- hectopascals, 1hPa = 100Pa
What does n/a mean?
Reading not available
What does tr mean?
Trace - rainfall less than 0.05mm
What are the 2 time periods data is collected between?
May-Oct 1987 and May-Oct 2015
What is the difference between Perth and all other data locations?
Perth in southern hemisphere - so its winter is over summer months
What events happened in 1987?
Great Storm of 1987(October - UK) and Hurricane Floyd (October - USA)
What event happened in 2015?
Hurricane Joaquin (USA)