co2_ppm*1e-6*44.011/28.97*mass_sum co2_ppm*1e-6*44.011/28.97*mass_sum bils*fract_ter @this @this fract_sic*aire fract_lic*aire @this @this @this @this sqrt( taux^2 + tauy^2) dqvdf+dqthe dtajs+dtoro+dtlif+dthin dtvdf + dtthe vitw*temp vitu*vitu vitu*temp vitu*vitv vitu*vitw vitv*vitv vitv*temp vitv*vitw