Articles | Volume 20, issue 21
Atmos. Chem. Phys., 20, 13069–13089, 2020
https://doi.org/10.5194/acp-20-13069-2020
Atmos. Chem. Phys., 20, 13069–13089, 2020
https://doi.org/10.5194/acp-20-13069-2020

Research article 09 Nov 2020

Research article | 09 Nov 2020

Role of the dew water on the ground surface in HONO distribution: a case measurement in Melpitz

Yangang Ren et al.

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Latest update: 12 Apr 2021
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Short summary
We present HONO measurements from the TROPOS research site in Melpitz, Germany. Investigations of HONO sources and sinks revealed the nighttime formation by heterogeneous conversion of NO2 to HONO followed by a significant surface deposition at night. The evaporation of dew was identified as the main HONO source in the morning. In the following, dew measurements with a self-made dew collector were performed to estimate the amount of evaporated HONO from dew in the atmospheric HONO distribution.
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