NO and O3 mixing ratios above the canopy in the rainforest

Monteiro, Carolina; Tsokankunku, Anywhere; Harder, Hartwig; Wolff, Stefan

doi:10.5194/egusphere-egu24-16499

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NO and O₃ mixing ratios above the canopy in the rainforest

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Monteiro, Carolina
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Tsokankunku, Anywhere
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Harder, Hartwig
Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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https://meetingorganizer.copernicus.org/EGU24/EGU24-16499.html
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引用

Monteiro, C., Tsokankunku, A., Harder, H., & Wolff, S. (2024). NO and O₃ mixing ratios above the canopy in the rainforest. Poster presented at EGU General Assembly 2024, Vienna.

引用: https://hdl.handle.net/21.11116/0000-000F-184C-2

要旨

In EGU General Assembly 2024, Vienna, Austria & Online, 14-19 April

Nitrogen oxides (NOx = NO and NO2) are chemical compounds that affect and control the abundance of ozone (O3) and hydroxyl radicals (OHx = OH and HO2), the main oxidizing agents in the atmosphere. In pristine environments, these oxidizers react with biogenic volatile organic compounds (BVOCs), such as isoprenes, to produce oxidized secondary organic products. Further reaction with NOx leads to the formation of nitrates. Nitrates deposit on surfaces and grow aerosol particles which eventually act as cloud condensation nuclei. This makes NOx an important atmospheric component, even in low concentrations. Therefore, NOx measurements are being made at the Amazon Tall Tower Observatory (ATTO) research site in the central Amazon forest basin, a pristine region.

Here we present the measurements of NO, O3 and meteorological parameters collected at the Walk-up tower, at a height of approximately 40 m, just above the canopy.