Damstede the Netherlands AEROSOLES Summary What are aerosoles
- Slides: 9
Damstede, the Netherlands AEROSOLES
Summary � What are aerosoles? � When do we measure the aerosoles? � How does the measurer works? � Results � Conclusion
What are aerosoles? � Particles in the air � Like sand or volcanic ash � They are about 10 nanometers to 100 micrometers � They reflect sunlight back into space
When do we meassure the aerosoles? � Only when it is sunny, because otherwise you can’t tell if the clouds or the aerosoles are reflecting the light
How does the sun photometer works? � Sunlight � LED-sensor � Voltage � AOT
Results date Temp cur Air pressure AOT green AOT red ETR 23 -092011 20. 1 1009 0. 188 0. 167 1. 450 23 -092011 20. 1 1009 0. 199 0. 153 1. 571 28 -092011 20. 1 1023 0. 169 0. 119 1. 571 29 -092011 21. 9 1005 0. 180 0. 134 1. 571 30 -092011 21. 2 1019 0. 119 0. 088 1. 450 16 -012012 3. 3 1028 0. 192 0. 188 1. 571 0. 137 0. 141 1. 571 17 -012012 20 -032012 12. 3 1039 0. 135 0. 121 1. 571 21 -032012 9. 0 1042 0. 420 0. 305 1. 571
Date Temp cur Air pressure AOT green AOT red ETR 22 -032012 15. 5 1038 0. 216 0. 161 1. 571 23 -032012 16. 5 1034 0. 277 0. 200 1. 571 28 -032012 15. 6 1039 0. 222 0. 168 1. 571
Conclusion � AOT doesn’t change because of temperature. � AOT does change because of air pressure.
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