title: Comparing i-Tree modeled ozone deposition with field measurements in a periurban Mediterranean forest.
abstract: Ozone flux estimates from the i-Tree model were compared with ozone flux measurements using the Eddy Covariance technique in a periurban Mediterranean forest near Rome (Castelporziano). For the first time i-Tree model outputs were compared with field measurements in relation to dry deposition estimates. Results showed generally a good agreement between predicted and measured ozone fluxes (least sum square=5.6 e(-4)) especially when cumulative values over the whole measurement campaign are considered. However at daily and hourly time-step some overestimations were observed in estimated values especially in hot dry periods. The use of different m values in the Ball-Berry formula in the different periods, produced the best fit between predicted and measured ozone fluxes. This suggests that a variable value for the coefficient m accounting for water availability may be appropriate to improve model estimates for Mediterranean and drought prone regions.
authors.affiliation: Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29,300, 00015 Monterotondo Scalo, Roma, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Morani
authors.affiliation: USDA Forest Service, Northern Research Station, USA.
authors.forename: D
authors.initials: D
authors.lastname: Nowak
authors.affiliation: The Davey Institute, The Davey Tree Expert Company, USA.
authors.forename: S
authors.initials: S
authors.lastname: Hirabayashi
authors.affiliation: Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29,300, 00015 Monterotondo Scalo, Roma, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Guidolotti
authors.affiliation: Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29,300, 00015 Monterotondo Scalo, Roma, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Medori
authors.affiliation: Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29,300, 00015 Monterotondo Scalo, Roma, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Muzzini
authors.affiliation: Consiglio per la ricerca e la sperimentazione in agricoltura (CRA), Research Center for the Soil-Plant System (RPS), Rome, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Fares
authors.affiliation: Consiglio per la ricerca e la sperimentazione in agricoltura (CRA), Research Center for the Soil-Plant System (RPS), Rome, Italy.
authors.forename: G Scarascia
authors.initials: GS
authors.lastname: Mugnozza
authors.affiliation: Institute of Agro-Environmental & Forest Biology (IBAF), National Research Council (CNR), Via Salaria Km 29,300, 00015 Monterotondo Scalo, Roma, Italy; Global Change Research Centre, Bělidla 986/4a, 603 00 Brno, Czech Republic. Electronic address: carlo.calfapietra@ibaf.cnr.it.
authors.forename: C
authors.initials: C
authors.lastname: Calfapietra
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data*; D055864:Droughts; D004784:Environmental Monitoring / Q000379:methods*; D065928:Forests; D019083:Mediterranean Region; D008956:Models, Chemical; D010126:Ozone / Q000032:analysis*; D014197:Trees
chemical_list: D000393:Air Pollutants; D010126:Ozone
keywords: Ball–Berry; Mediterranean region; Ozone flux