The large data set: eternal torture Flashcards
What does n/a mean?
The data is not available.
When is the data from?
May-October, 9:00-9:00
Locations on a map?
UK down and left:
Leuchars
Leeming (inland)
Heathrow (inland)
Hurn
Camborne
Southern hemisphere: Perth
Jacksonville is coastal. Beijing in inland.
What does tr mean?
Rainfall is less than 0.05 mm.
How do you convert between knots and mph?
1 knot = 1.15 mph
What is a relative humidity of 95% indicative of?
Mist and fog.
Units for daily mean temperature?
C°
Units for daily total rainfall?
mm
What is the maximum rainfall recorded?
51.6 mm in Heathrow - October 2015
102 mm in Perth - May 2015
Units for daily total sunshine?
Hours (to one dp)
What are the max and min values for daily total sunshine?
Heathrow 2015 -15 hrs and 0 hrs
Units for wind/ gust speed?
Knots or Beaufort conversion and direction given to 10°, from true North.
Max and min wind speeds?
23 kns in Leuchars in June, 2015
14.1 kns in Perth in October, 2015
2 kns in Hurn in October, 2015
0.9 kns in Jacksonville in October, 2015
What is visibility and what is it’s units?
Greatest horizontal distance at which an object can be seen in daylight.
Measured in decametres (Dm),
Unit for pressure?
hectopascals
Max and min pressure?
Heathrow 2015: 1036-989 hPa
What is daily mean total cloud cover and how is it measured?
How many eighths of the sky is covered.
Measured in oktas.
Hotest and coldest months
July/August.
October/March
Hotest location and coldest location?
Jacksonville is hotter than Beijing on average but Beijing has the hotest recorded day.
Australian summer months are not measured but UK is still slightly colder on average.
Driest and wetest months?
June.
Augustish.
Driest place?
In the UK: Heathrow 1.8 mm mean rainfall.
Perth on average.
Beijing is the wetest on average.
Which measurements should not be modelled using a normal distribution?
Windspeed (Beauforte) and cloud cover as they are qualitative.
Rainfall, daily mean pressure and daily windspeed are not symmetric.
Typical wind speeds?
7.7-9.4 knt with coastal cities being windier.
Windiest months?
May for UK and Beijing.
Perth/Jacksonville:
September/October.
