Eddy Covariance measurements and source partitioning of CO2 emissions in an urban environment: Application for Heraklion, Greece

Stagakis, Stavros and Chrysoulakis, Nektarios and Spyridakis, Nektarios and Feigenwinter, Christian and Vogt, Roland. (2019) Eddy Covariance measurements and source partitioning of CO2 emissions in an urban environment: Application for Heraklion, Greece. Atmospheric Environment, 201. pp. 278-292.

Full text not available from this repository.

Official URL: https://edoc.unibas.ch/70788/

Downloads: Statistics Overview


Cities are now becoming the focus for CO 2 emission reduction efforts worldwide and there is a growing need for establishing emission inventories , developing methodologies for improved CO 2 monitoring and understanding of the multiple source, sink and storage processes inside the complex urban environment. This study combines Eddy Covariance (EC) measurements of CO 2 flux ( F C ) during one year period over the city centre of Heraklion with analytical morphological and land cover data to achieve a thorough investigation of the spatiotemporal variability and the controlling factors of F C in the urban setting. The detailed characterization of the urban land cover and 3D structure was performed using high resolution Earth Observation data. The urban morphological data was used to parameterize a turbulent flux source area model and the land cover data used to analyse the contribution of the source area components to the measured F C . Heraklion F C does not present any specific seasonal trend according to the meteorological or vegetation changes throughout the year. Heraklion centre behaves as a net emitter diurnally and throughout the year. The diurnal variability presents a standard pattern in weekdays with a major peak in midday and a secondary in afternoon, clearly following the traffic rush-hour peaks. Space heating emissions during winter remain low, hardly affecting the seasonal and diurnal F C patterns. The main CO 2 sources are the major roads and the intersections , where the heavy traffic is located. The source area analysis revealed that traffic contributes 69% to the estimated annual CO 2 emissions. Space heating contributes only 11.6%, while human metabolism is estimated to contribute 19.4%. Vegetation cover of the source area is very low and was assumed to have minor effect to the annual F C budget. The estimated total annual emissions of Heraklion case study reach 19.4 kg CO 2 m −2 y −1 .
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Ehemalige Einheiten Umweltwissenschaften > Meteorologie (Parlow)
UniBasel Contributors:Vogt, Roland
Item Type:Article, refereed
Article Subtype:Research Article
Note:Publication type according to Uni Basel Research Database: Journal article
Related URLs:
Identification Number:
Last Modified:17 Aug 2020 12:15
Deposited On:17 Aug 2020 12:15

Repository Staff Only: item control page