Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 509794
Title Interpreting continuous in-situ observations of carbon dioxide and carbon monoxide in the urban port area of Rotterdam
Author(s) Super, I.; Denier van der Gon, H.A.C.; Visschedijk, A.J.H.; Moerman, M.M.; Chen, H.; Molen, M.K. van der; Peters, W.
Source Atmospheric Pollution Research 8 (2017)1. - ISSN 1309-1042 - p. 174 - 187.
Department(s) Meteorology and Air Quality
Graduate school PE & RC 2Onderzoekschool PE & RC 2
Publication type Refereed Article in a scientific journal
Publication year 2017
Keyword(s) CO:CO ratio - Concentration gradient - Urban CO flux - Urban monitoring

Large networks of expensive instruments are often used to independently quantify and monitor urban CO2 emissions with sufficient level of detail. However, many developing regions cannot afford such a monitoring effort. We explore the use of a simple, less costly method to constrain urban emissions using only two measurement sites, one upwind and one downwind of the city of Rotterdam in the Netherlands. This provides an interesting dataset of concentration gradients of multiple combustion tracers over an urban-industrial complex. We find clear emission signals from three source sectors, mainly related to industrial activities in the port and from residential areas. We estimate the anthropogenic CO2 emissions for three footprints from our observations and find them in reasonable agreement with the Dutch National Emission Registration (NER) database after accounting for biogenic fluxes. The large confidence interval for one of the footprints illustrates that the presence of point sources complicates the flux estimates. Additionally, we were able to pinpoint a limitation in the emission database using observed fossil fuel CO:CO2 ratios, although the applicability of this method is limited for the footprint with a large influence from point source emissions. There is also a large variability in the observed ratios per footprint, which indicates that the dominant source type varies over time. Finally, we show that the fossil fuel CO concentration can be used to calculate fossil fuel CO2 if their emission ratio is well-known.

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