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Are temperature readings taken in the shade or in sunlight?
Posted: Wed Mar 14, 2007 3:38 pm
by Tampa Bay Hurricane
I am new to temperature measurement so I was wondering, are you supposed to take temperature readings in the shade or in sunlight?
Posted: Wed Mar 14, 2007 4:46 pm
by Aslkahuna
In the shade if possible or at least shielded if it can't be shaded all day. Also, it should be 2 meters (6.6 feet) off the ground to be comparable to the height official readings are taken at. However, do not expect to always be close to the official values since temperatures, especially at night and n the Winter, are very microclimate sensitive even in warm locales (always colder at night aound and in ditches, drainage canals and streambeds).
Steve
Posted: Wed Mar 14, 2007 5:25 pm
by Tampa Bay Hurricane
thanks for the information!
Posted: Wed Mar 14, 2007 6:35 pm
by therock1811
Also, in the middle of a city center, expect the temperature to reflect a "heat island" effect due to all of the concrete.
Posted: Thu Mar 15, 2007 12:06 pm
by Tampa Bay Hurricane
therock1811 wrote:Also, in the middle of a city center, expect the temperature to reflect a "heat island" effect due to all of the concrete.
Oh yes whenever I go to downtown the concrete emanates much higher heat.
Posted: Thu Mar 15, 2007 12:35 pm
by HarlequinBoy
Oh, I never knew that. Haha.
Why are you supposed to take reading in the shade?
Posted: Thu Mar 15, 2007 7:24 pm
by Aslkahuna
Because what you are measuring is the air temperature and not how hot the thermometer can get in sunlight.
Steve
Posted: Fri Mar 16, 2007 2:52 pm
by HarlequinBoy
Oh, okay.