&SPECIES_PARAMS
 PSPECIES="CH4",              ! Tracer name
 PWETA_GAS=9.31E-5,           ! Below-cloud scavenging (gases) - A (weta_gas) [Calculated accord to Asman (1995)]
 PWETB_GAS=0.62,              ! Below-cloud scavenging (gases) - B (wetb_gas) [Asman (1995)]
 PRELDIFF=0.95,               ! Dry deposition (gases) - D [Calculated accord to Asman (1995)]
 PHENRY=1.4E-03,              ! Dry deposition (gases) - Henrys const. [henrys-law.org]
 PF0=0.0,                     ! Dry deposition (gases) - f0 (reactivity) [Clifton et al. (2020)]
 PWEIGHTMOLAR=16.0,           ! molweight
 PREACTIONS="OH",             ! List of reactions (must correspond to names in REAGENTS)
 PCCONST=9.65E-20,            ! OH Reaction rate - C [cm^3/molecule/sec] [Atkinson 1997]
 PDCONST=1082.0,              ! OH Reaction rate - D [K] [Atkinson 1997]
 PNCONST=2.58,                ! OH Reaction rate -  N (no unit) [Atkinson 1997]
 /
