Microclimate Fieldwork @ HCIAndrew Ke

Bryan Ng

Nguyen Vu Khang

Zhang Chen

Hypothesis

As the wind speed increases, the temperature drops

Items used

An all-in-one instrument that can measure things like temperature, wind speed, humidity and air pressure.

Within that, we used: Anemometer

To measure the wind speed Thermometer

To measure the temperature

Procedure Summary

We would be going to strategic locations across the Hwa Chong Campus on the 29th January and the 4th February from around 11am to 12am to find out how the wind speed can affect the temperature

Locations

Top floor of Multi-storey Car park Open air fire hydrant

Garden outside the printing centre At the tree stump

Open space between the canteen and Block C

At the centre of the semicircle

Terraces On the ninth step

Field At the flag pole

Running Track At the starting point

Fountain area outside General Office At the corner of the fountain nearest to

LT3

Procedure Get to the specific location

Make sure that this is the exact same location for both days

Procedure (Wind)

Use the anemometer to measure the wind speed

Anemometer must be in front of the user and the user must face the wind

Anemometer should be slightly higher than the user, to make sure that no wind is obstructed

Procedure (Temperature)

Use the thermometer to measure the surrounding temperature

Let the reading stabilize before taking it Make sure the height at which the

temperature is taken remains constant, because heat from the ground might interfere with the results.

Results(Day 1)

0 0.5 1 1.5 2 2.5 3 3.5 427

28

29

30

31

32

33

Wind Speed/ m/s

Tem

pera

ture

/°C

Results(Day 2)

0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2 2.426

27

28

29

30

31

32

33

34

35Te

mpera

ture

/ °C

Wind Speed/ m/s

Evaluation

Is the hypothesis true? Yes, since we can see a trend that as the

wind speed increases, the temperature decreases

Unusual Data? There are lots of unusual readings we

had, but these are probably caused by our lack of much precaution and of proper equipment

The unusual reading might have also been caused by the varying weather conditions such as presence of cloud cover

Problems Faced

Difficult to get a constant reading because of fluctuating wind speeds and temperatures due to varying intensity of sunlight

The instruments used to collect the data was not very reliable and restarted often

Learning Points

The higher the wind speed, the lower the temperature of an area

The intensity of sunlight and proximity to nearby buildings also affects the temperature

The temperature nearer the ground is hotter because there is more heat radiating form the ground

Questions Does humidity affect the temperature of

an area?

Is wind nearer the ground stronger or wind higher in the air?

Bibliography

All data taken from the authors