Table 2.

Regression analyses for Aeris sensor vs LIF instruments under laboratory conditions calculated with a 95% confidence interval

		Linear Fit ([Aeris] = m⋅[LIF instrument] + b)
	Sensor Mode	m	b	R2
NASA ISAF	HDO	1.015 ± 0.010	0.21 ± 0.10	0.979
NASA CAFE	HDO	1.017 ± 0.010	0.18 ± 0.10	0.976
Harvard FILIF	CH4	1.005 ± 0.004	−0.15 ± 0.04	0.980

Bivariate least squares regressions were calculated according to the method of York, et al (2004). HAPP fits were used for reporting the HCHO mixing ratio from the Aeris sensor. Laboratory conditions denote diluting HCHO gas standards using ultra–zero air. Units are in ppbv.