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Título
Influence of wind speed on CO2 and CH4 concentrations at a rural site
Autor
Año del Documento
2021
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
International Journal of Environmental Research and Public Health, 2021, Vol. 18, Nº. 16, 8397
Resumen
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.
Materias (normalizadas)
Carbon dioxide
Dióxido de carbono
Methane
Metano
Air - Pollution
Aire - Contaminación
Materias Unesco
2509.02 Contaminación Atmosférica
2501 Ciencias de la Atmósfera
ISSN
1660-4601
Revisión por pares
SI
Patrocinador
Ministerio de Economía, Industria y Competitividad y Fondo Europeo de Desarrollo Regional (FEDER) - (Projects CGL-2009-11979 and CGL2014-53948-P)
Junta de Castilla y León - (Project VA027G19)
Junta de Castilla y León - (Project VA027G19)
Version del Editor
Propietario de los Derechos
© 2021 The authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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Ficheros en el ítem
La licencia del ítem se describe como Atribución 4.0 Internacional