Large Data Set Flashcards
Coldest UK location
Leuchars
Locations
Leuchars Jacksonville Beijing
Leeming. Perth
Heathrow
Hurn
Camborne
Second coldest Uk location
Leeming
Warmest UK location
Heathrow
Second warmest UK location
Hurn
Median UK location (temperature)
Warmest international location
Jacksonville
Coldest international location
Perth
Temperature
Degree celsius ºc
Rainfall
mm
Sunshine
Hours
Daily maximum relative humidity
measured as a % of maximum water vapour that could be in the air (total saturation is 100%)
UK wind meaning
Daily mean wind speed and daily max gust measured in knots, direction of both measure in degrees (bearing)
Visibility
Greatest horizontal distance at which prominent objects can be seen in daylight. Measured in dm (decametres)
Pressure
measured in hPa (hectopascals)
Daily mean total cloud
measured in oktas (eighths of the “celestial dome”)
International wind
daily mean measured in knots with Beaufort conversion
Which months have the highest average temperature in the UK?
July (Camborne, Hurn, Heathrow), August (Leeming & Leuchars)
Is there a difference between 1987 average temperatures and 2015?
Increase at all locations (ranging from +0.2 in Leeming to +1 at Heathrow)
Which months are wettest for UK cities?
July (Leuchars)
October (Leeming)
August (Camborne, Heathrow & Hurn)
Where are the wettest locations?
Cambourne (UK), Jacksonville (International)
Where are the driest locations?
Heathrow (UK), Beijing (of the 3 international)
Which months are windiest?
October (Jacksonville)
May(all UK locations & Beijing)
September (Perth)
Which months are covered?
May to October
Which years are covered?
1987 & 2015
Why was October 1987 very windy in the south of England?
There was a hurricane
Southern Hemisphere
perth
Northern hemisphere
Jacksonville, Beijing
Perth rainfall values
- 102 mm
- Perth should have some zero (Trace values)
What does a trace value mean?
Less than 0.05mm of rain (little to none)
Which months are Spring in the Northern Hemisphere?
May/June
Which months are Summer in the Northern Hemisphere?
July/August/Sept
Which months are Winter in the Southern Hemisphere?
July/August/Sept
Which location has the highest temp?
Jacksonville
Which location has the lowest temp?
Leuchars
Coastal stations
Leuchars, Hurn, Camborne, Jacksonville, Perth
Camborne temp range
10-20
Heathrow temp range
8-29
Hurn temp range
6-24
Leeming temp range
4-23
Leuchars temp range
4-19
Camborne wind speed range
3-18
Heathrow wind speed range
3-19
Hurn wind speed range
2-19
Leeming wind speed range
3-17
Leuchars wind speed range
3-23
Beijing temp range
8-23
Jacksonville temp range
15-31
Perth temp range
8-25
Beijing wind speed range
2-9
Jacksonville speed range
1-12
Perth wind speed range
4-14
Gust (UK only) typical values
8-52 knots
rainfall (UK) typical values
0-60 mm
Pressure typical values
988-1038hPa
Windspeed on Beaufort scale
Max is ‘fresh’ (5) most light
Sunshine (UK) typical values
0-16hrs
Cloud cover typical values
0-8 oktas
Leuchars location
Scotland
Leeming location
Noth Yorkshire
Heathrow location
West of central London
Hurn location
Dorset
Camborne location
Cornwall
Jacksonville location
Florida
Perth location
South-western Australia
Beijing location
Northeast China
Knot
1kn=1.15 mph
Beaufort scale
0 = calm (< 1kn)
1-3 = light (1-10kn)
4 = moderate (11-16kn)
5= fresh (17-21kn)
Cloud cover is probability distribution
P (C=c) = 1/9, c=0, 1, 2, 3, 4, 5, 6, 7, 8
Calculating mean with calculator
Which region in the UK is often an outlier?
London
What makes values more reliable?
Is mean is higher and standard deviation is lower
Which location is the highest?
Camborne
Which places tend to be windy/rainy?
Coastal stations (Leuchars, Hurn, Camborne, Jacksonville and Lerth’
Which places tend to be warm/sunny?
South stations
Which place has high temp but low wind speed?
High temperature suggests overseas (not Perth) and low wind speed suggest not close to sea so Beijing
High temperature
Overseas (27.2) as Beijing and Jacksonville
Low wind speed
E.g 3.5 so not Jacksonville or Perth
High mean and smaller standard deviation
Results more reliable
When is winter in Perth?
July-Sept
What happened in October in 1987 in the UK?
The Great Storm
What happened in October in Jacksonville 1987.
Hurricane Floyd
