. Author manuscript; available in PMC: 2020 Nov 4.

Published in final edited form as: J Geophys Res Atmos. 2018 Feb 23;123(6):3243–3268. doi: 10.1002/2017jd027791

Table 3.

ECC sensor and background current uncertainty (ΔI_B) applied for each SHADOZ site.

Site	ECC	ΔI_B *μA+ (fraction of missing or > 0.05 μA)

Ascension Is., U.K.	SPC	0.02 (7.2%)
	ENSCI (92 records)	0.03 (7.4%)
Costa Rica	ENSCI	0.03 (0%)
Hanoi, Vietnam	ENSCI	0.03 (16.0%)
	SPC (15 records)	0.02 (1.6%)
Irene, S. Africa	SPC	0.02 (44.7%)
Kuala Lumpur, Malaysia	SPC (1998 – 11/2014)	0.02 (86.2%)
	ENSCI (12/2014 – 2016)	0.03 (14.0%)
La Réunion, France	ENSCI	0.03 (7.4%)
	SPC (40 records)	0.02 (0%)
Nairobi, Kenya	ENSCI	0.03 (74.2%)
Natal, Brazil	SPC	0.02 (0.5%)
	ENSCI (104 records)	0.03 (0.2%)