Evaluating modelled tropospheric columns of CH 4 , CO and O 3 in the Arctic using ground-based FTIR measurements
International audience Both measurements and modelling of air pollution in the Arctic are difficult. Yet with the Arctic warming at nearly four times the global average rate, and changing emissions in and near the region, it is important to understand Arctic atmospheric composition and how it is cha...
Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
|
Subjects: | |
Online Access: | https://insu.hal.science/insu-04171742 https://insu.hal.science/insu-04171742/document https://insu.hal.science/insu-04171742/file/egusphere-2023-1161.pdf https://doi.org/10.5194/egusphere-2023-1161 |
Summary: | International audience Both measurements and modelling of air pollution in the Arctic are difficult. Yet with the Arctic warming at nearly four times the global average rate, and changing emissions in and near the region, it is important to understand Arctic atmospheric composition and how it is changing. This study examines the simulations of atmospheric concentrations of methane, carbon monoxide and ozone in the Arctic by 11 models. Evaluations are performed using data from five highlatitude ground-based Fourier transform infrared (FTIR) spectrometers in the Network for the Detection of Atmospheric Composition Change (NDACC). Mixing ratios of trace gases are modelled at three-hourly intervals by CESM, CMAM |
---|