We reply to the remarks by Ferretti etal. (2014) on our paper (De Marco etal., 2014) and demonstrate that: 1. the differences in estimating AOT40 by passive sampling when using the formula proposed by either Mazzali etal. (2002) or De Marco etal. (2014) are not statistically significant 2. the inaccuracy of the Loibl approach does not strictly depend on the averaging period, as differences between weekly and biweekly calculations are not significant. We thus confirm the well-known uncertainties of AOT40 estimates based on the Loibl function and recommend further testing of the multi-variate statistical model proposed by De Marco etal. (2014). The main advantages of this modelling approach are the direct estimate of AOT40, the applicability at any elevation, and the use of simple geostatistical attributes that can be easily obtained at any location by GIS and existing databases.

Discussion on the new functions for estimating AOT40 from passive sampling

De Marco, A.
2014

Abstract

We reply to the remarks by Ferretti etal. (2014) on our paper (De Marco etal., 2014) and demonstrate that: 1. the differences in estimating AOT40 by passive sampling when using the formula proposed by either Mazzali etal. (2002) or De Marco etal. (2014) are not statistically significant 2. the inaccuracy of the Loibl approach does not strictly depend on the averaging period, as differences between weekly and biweekly calculations are not significant. We thus confirm the well-known uncertainties of AOT40 estimates based on the Loibl function and recommend further testing of the multi-variate statistical model proposed by De Marco etal. (2014). The main advantages of this modelling approach are the direct estimate of AOT40, the applicability at any elevation, and the use of simple geostatistical attributes that can be easily obtained at any location by GIS and existing databases.
Geostatistics;Ozone;AOT40;Passive sampling;Loibl function
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.12079/2227
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