Weather and climate Flashcards
Which instrument is used to measure
max and min daily temps
A maximum-minimum thermometer.
What is a rain gauge used for?
Measuring precipitation over a period of
time.
Millimetres
What is a barometer used for?
Measuring air pressure.
millibars
Which instrument is used to measure wind speed?
An anemometer.
mph, kph, m/s
Which instrument is used to measure wind direction? (blowing from)
A wind wane.
Where should a Stevenson screen be situated?
- Clear from trees or buildings that create shade.
- On grass so this will not absorb heat/alter temperature.
What is the advantage of using a digital thermometer over a maximum-minimum thermometer?
- Quick/instant reading
- Accurate to a decimal point
Suggest why temperatures should be taken each morning and afternoon (digital thermometer)?
Temperature will change during the day
/
To show the range of temperature during a day.
Why are temperature different at different sizes?
- Buildings/tarmac/concrete absorb heat from sun
- Internal heating system of the buildings
- Buildings radiate heat around them
- Funneling effect of buildings
- Aspect/south facing/facing sun
- Shade from sun by trees/buildings
Some students measures the relative humidity at different sites. What are the improvements the the students could make to his data collection method?
- Collect datas on more than three days.
- Collect data on twice a day.
- Collect data in different months/seasons.
- The students check other students’ reading.
- Reading should be taken by the same student so there is less height difference.
Where should a rain gauge be placed and why?
On grass. Because if they are placed on concrete, extra water can splash in.
Why should rain gauge be checked regularly?
To avoid evaporation.
What is a wet-dry bulb thermometer (hygrometer) used for?
Humidity
Cirrus cloud
Thin and wispy
High atmosphere - 5500 metres
Doesn’t bring any type of weather
Stratus cloud
Low level - sometimes reaching ground
Below 2000m
Grey, fast
Rain, snow
