Applied - Large Data Set Flashcards
What are the 5 UK weather stations?
- Leuchars
- Leeming
- Heathrow
- Hurn
- Camborne
What are the locations names?
- Leuchars
- Leeming
- Heathrow
- Hurn
- Camborne
What are the 3 overseas locations?
- Beijing
- Perth
- Jacksonville
What does “tr” mean?
trace - less than 0.05mm of rainfall
How do you treat “tr” in calculations?
as 0.025mm
What is windspeed measured in?
- Knots
- Beauford scale
What is a knot?
a nautical mile per hour, 1 knot = 1.15mph
What is 0/calm on the beauford scale?
< 1kn
What is 1-3/light on the beauford scale?
1-10kn
What is 4/moderate on the beauford scale?
11-16kn
What is 5/fresh on the beauford scale?
17-21kn
What is n/a and how do you treat it?
“not available” and you discount it
What is total sunshine?
the total hours of sunshine to the nearest 10th of an hour
What is maximum gust?
The largest instantaneous wind speed in knots
What is humidity?
The % of air saturation with water vapour, 100% is the maximum % water content air can hold
What is daily mean cloud cover?
The measure of cloud cover in oktas. Oktas means the number of 1/8ths of the sky covered (0-8)
What is mean pressure?
mean air pressure in hectopascals (hPa)
What is mean visibility?
How far (in decametres, Dm) can be seen into the horizon during daylight hours
What is wind direction?
The direction the wind is blowing FROM. In degrees or cardinal direction
What is a hectopascal in pascals?
100Pa
What are most values accuracy to?
1 d.p
What is the majority of rainfall values in all locations?
0
What % humidity is associated with mist and fog?
95%
Which values are n/a?
First 2 weeks of may 1987 for:
* Daily total sunshine
* Daily mean windspeed
* Beauford Conversion
* Daily Maximum gust
note 3 of them are measures of windspeed
