The Large Data Set Flashcards
(32 cards)
What are the two years in the large data set
1987 and 2015
Why is 1987 used in the large data set
Due to a notable weather event ‘the great storm which occurred late that year
(after september)
What year shows the international data
2015 only
What months are covered in the large data set
May to October
What is the general trend in spring / summer of the uk
Dry, bright calmer, hotter weather
What is the general trend in autumn / winter in the uk
Windier, wetter, darker, colder weather
From North to South what are the weather stations in the uk
Leuchars
Leeming
Heathrow
Hurn
Camborne
Which weather stations in the uk are on the coast
Camborne and leuchars
They will have windier weather
As you move north in the uk how does the weather change
Temperature decreases, rainfall increases, maximum hours of sun increase
What is daily mean temperature / its measurement / how its measured
Average temperature in a day (°C)
The air temperature is measured with a thermometer
What is daily total rainfall / its measurement / how its measured
The total rainfall on 1 day (mm)
Precipitation is collected and melted in a 24 hour period starting from 0900 (1000 BST)
What is daily total sunshine / measurement / how its measured
The hours of sunshine in a day (hours)
Recording solar radiation
What is daily relative humidity / measurements
Measure of how saturated the air is with water vapour (%)
(You dont need to know how its measured)
What does a 95% humidity tell you
There is likely fog or mist
What is cloud cover / measurement / how its measured
Percentage of the sky that is covered by clouds (Oktas)
Recorded on a scale of 0 to 8
A grid is held up, and cover is counted
What is daily mean visibility / measurements / how its measured
The average distance at which an object can be seen during the day (Decameters)
It is recorded using a visiometer or observations from roof top exposure
How many metres is in a decameter
1Dm = 1m
What is daily mean pressure / measurements
The mean air pressure recorded at the station (hPa)
(Dont need to know how its measured)
How do you convert hPa to Pa
1 hPa = 100Pa
What is daily mean wind speed / measurements
The average wind speed in a day (kn - knots)
(Dont need to know how its measured)
What is the daily maximum gust speed / measurements
The maximum instantaneous speed of wind during the day (knots)
(Dont need to know how to measure)
What is The daily mean wind direction / measurement
The average direction that the wind is coming from in a day (°)
(Dont need to know how to measure)
What is the windspeed Beaufort conversion
A qualitative conversion of the daily mean windspeed
It is measured from, calm, light, moderately, fresh
What is the wind / gust cardinal direction
The compass direction that shows where the wind is coming from
