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Bug #647

NMVOC split for MEGAN was incorrect

Added by Twan van Noije about 5 years ago. Updated about 5 years ago.

Status:
Closed
Priority:
Normal
Category:
-
Target version:
-
Start date:
08/09/2016
Due date:
% Done:

100%


Description

The NMVOC split applied to the biogenic emissions from the MEGAN inventory was incorrect and has been corrected.

When using CB05 chemistry, the CO emissions from MEGAN were treated as methanol and the methanol emissions from MEGAN as ethanol. In locations with large biogenic (CO) emissions, this resulted in much too large methanol emissions, which may have had a strong impact on the local chemistry.

Furthermore, for both CBM4 and CB05 versions, one of the entries for OLE was in the wrong position. This resulted in a contribution to OLE from ethene, which should have been coming from the lumped species "butenes and higher alkenes".

These bugs has now been corrected in the aero project in the TM5-MP repository. At the same time, I have also removed CO from the VOC split, because it really shouldn't be there.

History

#1 Updated by Twan van Noije about 5 years ago

Note that the MEGAN inventory is used in combination with CB05 in Jason's GMD paper. I suppose the results described there will be affected.

#2 Updated by Philippe Le Sager about 5 years ago

  • Status changed from Resolved to Closed
  • % Done changed from 0 to 100

Merged in r397.

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