Annual mean daytime air temperature can be 5.4 deg F warmer, highest recorded temperature can be 10 to 12 deg F warmer. On a clear calm night, the temperature.

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Presentation transcript:

Annual mean daytime air temperature can be 5.4 deg F warmer, highest recorded temperature can be 10 to 12 deg F warmer. On a clear calm night, the temperature difference can be 22 deg. F warmer. Lawrence Berkley National Laboratory (LBNL) in a study for U.S. Department of Energy specifically cited Burbank as having yearly maximum temperatures that are rising significantly.

Yearly high temperature (hottest day of the year) recorded in Downtown Los Angeles Image from LBNL

View of the street - the following image is the same view but infrared Shade from Tree 78deg Palm Tree

Asphalt Paving 125deg. Shade from Tree 78deg

Note that the asphalt is 30 to 40 degrees hotter than the air temperature! The asphalt will continue to be hot after the sun goes down. Here in the shade, the asphalt is slightly cooler than the air temperature.

Black Asphalt Roof This will make your electric meter spin!

Black Asphalt Roof 80 degrees hotter than Air Temperature!

Light Color Asphalt Roof Adjacent to Black Roof (Photo taken at the same time)

Light Color Asphalt Roof 30 degrees Cooler than Black Roof!

White Metal Roof Note Bronze Trim is much hotter

White Metal Roof 50 degrees cooler than Black Roof! Adjacent to Black Roof (Photo taken at the same time)

One last street shot; note that the asphalt is 50 degrees hotter than the air temperature, note that the concrete sidewalk is about 30 degrees cooler than the street.