Which processes drive observed variations  of HCHO columns over India?

Surl, Luke; Palmer, Paul I.; González Abad, Gonzalo

doi:https://doi.org/10.5194/acp-18-4549-2018

Articles | Volume 18, issue 7

https://doi.org/10.5194/acp-18-4549-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-18-4549-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 7

Research article

|

05 Apr 2018

Research article |

| 05 Apr 2018

Which processes drive observed variations of HCHO columns over India?

Luke Surl, Paul I. Palmer, and Gonzalo González Abad

Data sets

Model output relating to HCHO columns over India L. Surl https://doi.org/10.7488/ds/2305

Short summary

We used observations of HCHO formaldehyde columns from the OMI satellite instrument and the GEOS-Chem atmospheric chemistry model to investigate how and why HCHO varies over India. We find that emissions of biogenic VOC from forests are the most powerful driver, with forests' response to seasonal temperature variations causing variation over time. Human-driven emissions of VOC and burning of vegetation have detectable, but more limited, impacts.