Large data set

What months and years does the large data set have data on?

May to October

1987 and 2015

What are the towns in the UK large data set South - North

Leuchars - coastal - windier

Leeming

Heathrow

Hurn

Cambourne - coastal - windier

What are the overseas weather stations?

• Beijing

• Jacksonville

• Perth

What is different about Perth?

it is in the sourthern hemisphere so winter is june to august

As temperature increases what happens to sunshine, rainfall and windspeed

increases

decreases

decreases

as we move further north what happens to temperature, rainfall and max hours of sunshine

decreases

increases

increases (average amount of sunshine will probs decrease)

What are the units for daily mean temperature and what is it rounded to and typical range. What are key points for temp

DegreesC

Rounded to 1dp

range approx 5-24

warmer in summer

What is daily total rainfall measured in, what is the range, what are the key points

mm

approx 0 - 20mm

not symmetrical - there are many 0 and tr values

what is the daily total sunshine measure in and what is the range, what are key points

hours

approx 0 - 14hrs

more sun in summer

What is the unit and range for cloud cover what key points

oktas

0-8

integers

What is the unit for humidity and that is the range? What are key points

%

approx 70 - 100%

above 95% associated with fog/mist

What is the unit and range for daily mean viability? What are the key details?

Dm - decametre 1Dm = 10m

approx 200 - 4000 Dm

rounded to the nearest 100

What is the units and range for pressure?

hPa - hectopascals

approx 990 - 1040 hPa

What is tr?

trace - there was trace of water in the measuring instrument

used for values of rainfall 0 < r ≤ 0.05

replace tr with either 0 or 0.025mm (midpoint)

What do you do if there is data that says n/a

ignore it

What is daily mean windspeed measured in and what is the range

Kn (knots)

approx 3 - 10Kn

What is the windspeed Beaufot conversion?

What is the range

When windspeed is goes from numerical data to qualitative data

light → moderate → fresh → strong

usually light →moderate

What is the units and range for daily max gust

Kn (knots)

approx 8 - 50

What is the difference between daily max gust and daily mean windspeed?

Daily mean windspeed is average whereas daily max gust is the strongest gust of wind

What is the wind/gust direction (bearings/cardinal)

which direction wind is blowing FROM NOT TO - starts from 360degrees

cardinal bearings are basically north, south west etc

Where is the town in north america and say a bit about it

Jacksonville

on the coast

hot summers

hurricanes in Oct (but mean windspeed still relatively low)

What is the town in China and a bit about it

Beijing

Hotter, wetter summers

Colder winters

What is the town in Australia and a bit about it

Perth

flipped seasons because southern hemispheres

What is measured in international towns/ cities

temp

rainfall

pressure

windspeed

windspeed beaufort conversion

True all false all weather stations are warmer in the summer

all but perth - colder in the summer

If it is a really rainy place where would it be?

Beijing - very rainy in the summer