KIT | KIT-Bibliothek | Impressum | Datenschutz

Evaluation of the coupled high-resolution atmospheric chemistry model system MECO(n) using in situ and MAX-DOAS NO₂ measurements

Kumar, Vinod; Remmers, Julia; Beirle, Steffen; Fallmann, Joachim 1; Kerkweg, Astrid; Lelieveld, Jos; Mertens, Mariano; Pozzer, Andrea; Steil, Benedikt; Barra, Marc; Tost, Holger; Wagner, Thomas
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)


We present high spatial resolution (up to 2.2×2.2 km2) simulations focussed over south-west Germany using the online coupled regional atmospheric chemistry model system MECO(n) (MESSy-fied ECHAM and COSMO models nested n times). Numerical simulation of nitrogen dioxide (NO2) surface volume mixing ratios (VMRs) are compared to in situ measurements from a network with 193 locations including background, traffic-adjacent and industrial stations to investigate the model's performance in simulating the spatial and temporal variability of short-lived chemical species. We show that the use of a high-resolution and up-to-date emission inventory is crucial for reproducing the spatial variability and resulted in good agreement with the measured VMRs at the background and industrial locations with an overall bias of less than 10 %. We introduce a computationally efficient approach that simulates diurnal and daily variability in monthly-resolved anthropogenic emissions to resolve the temporal variability of NO2.

MAX-DOAS (Multiple AXis Differential Optical Absorption Spectroscopy) measurements performed at Mainz (49.99∘ N, 8.23∘ E) were used to evaluate the simulated tropospheric vertical column densities (VCDs) of NO2. ... mehr

Verlagsausgabe §
DOI: 10.5445/IR/1000136389
Veröffentlicht am 16.08.2021
DOI: 10.5194/amt-14-5241-2021
Zitationen: 1
Web of Science
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Forschungsbereich Troposphäre (IMK-TRO)
Institut für Meteorologie und Klimaforschung (IMK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1867-8548
KITopen-ID: 1000136389
HGF-Programm 12.11.35 (POF IV, LK 01) Tailored information for users and stakeholders
Erschienen in Atmospheric measurement techniques
Verlag Copernicus Publications
Band 14
Heft 7
Seiten 5241–5269
Vorab online veröffentlicht am 30.07.2021
Nachgewiesen in Dimensions
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page