Weekly cycles of formaldehyde and nitrogen dioxide in the atmosphere over Northern Eurasia: anthropogenic or natural?

S. A. Sitnov; I. I. Mokhov

doi:10.1117/12.2287151

30 November 2017 Weekly cycles of formaldehyde and nitrogen dioxide in the atmosphere over Northern Eurasia: anthropogenic or natural?

S. A. Sitnov, I. I. Mokhov

Author Affiliations +

Proceedings Volume 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 104665T (2017) https://doi.org/10.1117/12.2287151
Event: XXIII International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2017, Irkutsk, Russian Federation

Abstract

Using data from the OMI (Aura) satellite instrument, the weekly cycles in the regional atmospheric contents of formaldehyde (CH₂O) and nitrogen dioxide (NO₂) over European Russia (ER) and Western Siberia (WS) are investigated. The weekly signals in the regional CH₂O content are found to be in the opposite phase over ER and WS, but in phase with the weekly signals in the regional surface temperatures in the corresponding regions. Contrary with CH₂O, the weekly signals in the regional NO₂ content over ER and WS are in phase, manifesting themselves as the "weekend effects" with minima on Sunday and maxima on weekdays. The antiphase weekly signals in the regional CH2_O contents over ER and WS can be associated with the dependence of biogenic isoprene emission on the regional surface temperature, influenced by the long Rossby-type waves.

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S. A. Sitnov and I. I. Mokhov "Weekly cycles of formaldehyde and nitrogen dioxide in the atmosphere over Northern Eurasia: anthropogenic or natural?", Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104665T (30 November 2017); https://doi.org/10.1117/12.2287151

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