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What does "APIN" represent in emiss_opt=10?

hliu20

New member
Hi,
I am running WRF-Chem4.2, I noticed that with emiss_opt=13, isoprene and terpenes are input as "isoprene, terp, sesq." However, with emiss_opt=10, only "isop" and "apin" are included.

Question 1: what does "apin" specifically refer to in emiss_opt=10?
Question 2: Does it represent the sum of "terp + sesq" (as included in emiss_opt=13), only monoterpenes, or only α-pinene specifically?

Any suggestions would be appreciated.
 
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