Abstract
We studied the relationship between satellite-based aerosol optical depth (AOD) and particulate matter (PM{sub 2.5}) which is aerosol mass concentration measured on the ground. PM{sub 2.5} data originated from four sites located near each other within the Helsinki region, Finland. Depending on the site, the data covered between two and seven years. We investigated how temporal PM{sub 2.5} averaging affects the correlation between PM{sub 2.5} and AOD. In addition, we studied the seasonality of the correlation. The time-averaging increased the correlation coefficient as compared with one-hour PM{sub 2.5} measurements. Regarding the monthly averages of PM{sub 2.5} and AOD, the correlation coefficients were between 0.57 and 0.91. We also studied PM{sub 2.5} and AOD gradients between an urban and a rural site. Monthly averages at the urban site were regularly higher than those at the rural site. However, the seasonal behaviour was similar. (orig.)
Natunen, A;
Arola, A;
Mielonen, T;
Huttunen, J;
Komppula, M;
[1]
Lehtinen, K E. J.
[2]
- Finnish Meteorological Inst., Kuopio (Finland)
- Kuopio Univ. (Finland)
Citation Formats
Natunen, A, Arola, A, Mielonen, T, Huttunen, J, Komppula, M, and Lehtinen, K E. J.
A multi-year comparison of PM{sub 2.5} and AOD for the Helsinki region.
Finland: N. p.,
2010.
Web.
Natunen, A, Arola, A, Mielonen, T, Huttunen, J, Komppula, M, & Lehtinen, K E. J.
A multi-year comparison of PM{sub 2.5} and AOD for the Helsinki region.
Finland.
Natunen, A, Arola, A, Mielonen, T, Huttunen, J, Komppula, M, and Lehtinen, K E. J.
2010.
"A multi-year comparison of PM{sub 2.5} and AOD for the Helsinki region."
Finland.
@misc{etde_1010368,
title = {A multi-year comparison of PM{sub 2.5} and AOD for the Helsinki region}
author = {Natunen, A, Arola, A, Mielonen, T, Huttunen, J, Komppula, M, and Lehtinen, K E. J.}
abstractNote = {We studied the relationship between satellite-based aerosol optical depth (AOD) and particulate matter (PM{sub 2.5}) which is aerosol mass concentration measured on the ground. PM{sub 2.5} data originated from four sites located near each other within the Helsinki region, Finland. Depending on the site, the data covered between two and seven years. We investigated how temporal PM{sub 2.5} averaging affects the correlation between PM{sub 2.5} and AOD. In addition, we studied the seasonality of the correlation. The time-averaging increased the correlation coefficient as compared with one-hour PM{sub 2.5} measurements. Regarding the monthly averages of PM{sub 2.5} and AOD, the correlation coefficients were between 0.57 and 0.91. We also studied PM{sub 2.5} and AOD gradients between an urban and a rural site. Monthly averages at the urban site were regularly higher than those at the rural site. However, the seasonal behaviour was similar. (orig.)}
journal = []
issue = {6}
volume = {15}
place = {Finland}
year = {2010}
month = {Jul}
}
title = {A multi-year comparison of PM{sub 2.5} and AOD for the Helsinki region}
author = {Natunen, A, Arola, A, Mielonen, T, Huttunen, J, Komppula, M, and Lehtinen, K E. J.}
abstractNote = {We studied the relationship between satellite-based aerosol optical depth (AOD) and particulate matter (PM{sub 2.5}) which is aerosol mass concentration measured on the ground. PM{sub 2.5} data originated from four sites located near each other within the Helsinki region, Finland. Depending on the site, the data covered between two and seven years. We investigated how temporal PM{sub 2.5} averaging affects the correlation between PM{sub 2.5} and AOD. In addition, we studied the seasonality of the correlation. The time-averaging increased the correlation coefficient as compared with one-hour PM{sub 2.5} measurements. Regarding the monthly averages of PM{sub 2.5} and AOD, the correlation coefficients were between 0.57 and 0.91. We also studied PM{sub 2.5} and AOD gradients between an urban and a rural site. Monthly averages at the urban site were regularly higher than those at the rural site. However, the seasonal behaviour was similar. (orig.)}
journal = []
issue = {6}
volume = {15}
place = {Finland}
year = {2010}
month = {Jul}
}