RT info:eu-repo/semantics/article
T1 Influence of wind speed on CO2 and CH4 concentrations at a rural site
A1 Pérez Bartolomé, Isidro Alberto
A1 García Pérez, María Ángeles
A1 Sánchez Gómez, María Luisa
A1 Pardo Gómez, Nuria
K1 Carbon dioxide
K1 Dióxido de carbono
K1 Methane
K1 Metano
K1 Air - Pollution
K1 Aire - Contaminación
K1 2509.02 Contaminación Atmosférica
K1 2501 Ciencias de la Atmósfera
AB Meteorological variables have a noticeable impact on pollutant concentrations. Among these variables, wind speed is typically measured, although research into how pollutants respond to it can be improved. This study considers nine years of hourly CO2 and CH4 measurements at a rural site, where wind speed values were calculated by the METEX model. Nine wind speed intervals are proposed where concentrations, distribution functions, and daily as well as annual cycles are calculated. Contrasts between local and transported concentrations are around 5 and 0.03 ppm for CO2 and CH4, respectively. Seven skewed distributions are applied, and five efficiency criteria are considered to test the goodness of fit, with the modified Nash–Sutcliffe efficiency proving to be the most sensitive statistic. The Gumbel distribution is seen to be the most suitable for CO2, whereas the Weibull distribution is chosen for CH4, with the exponential function being the worst. Finally, daily and annual cycles are analysed, where a gradual decrease in amplitude is observed, particularly for the daily cycle. Parametric and nonparametric procedures are used to fit both cycles. The latter gave the best fits, with the agreement being higher for the daily cycle, where evolution is smoother than for the annual cycle.
PB MDPI
SN 1660-4601
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/59565
UL https://uvadoc.uva.es/handle/10324/59565
LA eng
NO International Journal of Environmental Research and Public Health, 2021, Vol. 18, Nº. 16, 8397
NO Producción Científica
DS UVaDOC
RD 27-nov-2024