Table 3.

Average relative humidity linear regression parameters ^a for 2 sensors of each type at AIRS during ambient monitoring.

Sensor	Relative Humidity Collocation Dates	N (hr)	Slope	Intercept	R2	MBE (%)	NRMSE (%)	PDavg (%)
AQY	8/9/18–12/3/18	1197	1.12	−16.9	0.95 *	−4.90	11	11.4
PA	8/10/18–4/30/19	4654	0.57	5.29	0.84 *	−24.30	37	4.0
RAMP	12/12/18–7/31/19	4893	0.90	2.23	0.95 *	−4.10	10	2.2

^a PM_{2.5 sensor} = Intercept + Slope PM_{2.5 reference,} * Statistically significant at p < 0.01.