Table 5.

Treatment of SOA formation from BVOC-NO₃ systems in current 3-D models.

Model	Gas-phase chemistry	Isoprene + NO3 parameterization	Monoterpene + NO3 parameterization
CAMx v6.20 with SOAP	CB05, CB6, or SAPRC99	No SOA from this path	NO3 SOA yields same as photooxidation (OH + ozone) yields1
CAMx v6.20 with 1.5-D VBS	CB05, CB6, or SAPRC99	NO3 SOA yields same as photooxidation (OH + ozone) yields2	NO3 SOA yields same as photooxidation (OH + ozone) yields2
CMAQ v5.1 cb05e51-AERO6	CB05 with additional modification3	Odum two-product approach based on Kroll et al. (2006) photooxidation (OH) yields3	Odum two-product approach based on Griffin et al. (1999a) photooxidation (OH + ozone) yields4
CMAQ v5.1 SAPRC07tc-AERO6	SAPRC075 with two monoter- penes: α-pinene (APIN) and other monoterpenes (TERP)	Odum two-product approach based on Kroll et al. (2006) photooxidation (OH) yields3	Odum two-product approach based on Griffin et al. (1999a) photooxidation (OH + ozone) yields4
CMAQ v5.1 SAPRC07tic-AERO6i	SAPRC07tic6,7	based on semivolatile organic nitrate from isoprene dinitrate8	no SOA from α-pinene + NO3; SOA from other monoterpenes based on semivolatile organic nitrates8
EURAD-IM	RACM	Odum two-product approach 9	Odum two-product approach 10 with T dependence11,12
GEOS-Chem v10-01	GEOS-Chem v10-01 with speciated isoprene nitrates6,7	VBS fit9,13	VBS fit to β-pinene + NO3 experiment10,13
GFDL AM3	GFDL AM3	no SOA from this pathway	Odum two-product approach based on β-pinene + NO310,14
GISS-GCM II	NA (offline oxidants)	no SOA from this pathway	Odum two-product approach based on β-pinene + NO310,14
GLOMAP/ UKESM-1	VOC + NO3	Based on Kroll et al. experiments (2006), set to 3 %15	Based on Tunved et al. (2004), set to 13 %15
STOCHEM-CRI	MCM	CRI species fit to MCMv3.1 simulations16,17,18	CRI species fit to MCMv3.1 simulations 16,17,18
WRF-Chem v3.6.1	MOZART-MOSAIC	no SOA from this pathway	VBS fit to β-pinene + NO3 experiment10,19

¹Strader et al. (1999).

²Koo et al. (2014).

³Appel et al. (2016).

⁴Carlton et al. (2010a).

⁵Hutzell et al. (2012).

⁶Rollins et al. (2009).

⁷Xie et al. (2013).

⁸Pye et al. (2015).

⁹Ng et al. (2008).

¹⁰Griffin et al. (1999).

¹¹Li et al. (2013).

¹²Kiendler-Scharr et al. (2016).

¹³Pye et al. (2010).

¹⁴Chung and Seinfeld (2002).

¹⁵Scott et al. (2014).

¹⁶Utembe et al. (2009).

¹⁷Johnson et al. (2006).

¹⁸Khan et al. (2015).

¹⁹Knote et al. (2014).