The CO$_{2}$ integral emission by the megacity of St Petersburg as quantified from ground-based FTIR measurements combined with dispersion modelling

Ionov, Dmitry V.; Makarova, Maria V.; Hase, Frank 1; Foka, Stefani C.; Kostsov, Vladimir S.; Alberti, Carlos 1; Blumenstock, Thomas 1; Warneke, Thorsten; Virolainen, Yana A.
1 Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF), Karlsruher Institut für Technologie (KIT)

Abstract:

The anthropogenic impact is a major factor of climate change, which is highest in industrial regions and modern megacities. Megacities are a significant source of emissions of various substances into the atmosphere, including CO$_{2}$ which is the most important anthropogenic greenhouse gas. In 2019 and 2020, the mobile experiment EMME (Emission Monitoring Mobile Experiment) was carried out on the territory of St Petersburg which is the second-largest industrial city in Russia with a population of more than 5 million people. In 2020, several measurement data sets were obtained during the lockdown period caused by the COVID-19 (COronaVIrus Disease of 2019) pandemic. One of the goals of EMME was to evaluate the CO$_{2}$ emission from the St Petersburg agglomeration. Previously, the CO$_{2}$ area flux has been obtained from the data of the EMME-2019 experiment using the mass balance approach. The value of the CO$_{2}$ area flux for St Petersburg has been estimated as being 89±28 kt km$^{-2}$ yr$^{-1}$, which is 3 times higher than the corresponding value reported in the official municipal inventory. The present study is focused on the derivation of the integral CO$_{2}$ emission from St Petersburg by coupling the results of the EMME observational campaigns of 2019 and 2020 and the HYSPLIT (HYbrid Single-Particle Lagrangian Integrated Trajectories) model. ... mehr

 Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Atmosphärische Spurenstoffe und Fernerkundung (IMK-ASF) Publikationstyp Zeitschriftenaufsatz Publikationsjahr 2021 Sprache Englisch Identifikator ISSN: 1680-7316, 1680-7324 KITopen-ID: 1000136942 HGF-Programm 12.11.13 (POF IV, LK 01) Long-term trends of global atmospheric composition Erschienen in Atmospheric Chemistry and Physics Verlag European Geosciences Union (EGU) Band 21 Heft 14 Seiten 10939-10963 Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds Nachgewiesen in DimensionsScopusWeb of Science
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