Paris Mid-cost CO2 sensor network.

In the framework of the ICOS-Cities project, a network of more than 25 Midcost CO2 sensors has been deployed at the roof level in the Paris urban and suburban area. The purpose of such dense CO2 monitoring network is to feed an atmospheric inversion system for the quantification of CO2 emissions at the sub-city scale and/or discern specific sectors. The presentation will mainly deal with the sensor characterization and the calibration strategy. It will focus on corresponding sensor performance in the field. It will then attempt to discuss the pertinence of such monitoring approach and its suitability for the city CO2 emission quantification.