Local dew-point temperature, water vapor pressure, and millimeter-wavelength opacity at the Sierra Negra volcano

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Table 5.

Correlations between local parameters and τ₂₂₅ and between the opacity estimated with the local parameters and the measured opacity, τ₂₂₅, for 0 h.

	Parameter pairs

	(T_DP,	(P_H2O0,	(WVC_SNV,	(τ_DP,	(τ_PH2O,	(τ_WVC,
Time	τ₂₂₅)	τ₂₂₅)	τ₂₂₅)	τ₂₂₅)	τ₂₂₅)	τ₂₂₅)
2013-2015	0.74	0.77	0.77	0.66	0.66	0.67
Jan	0.62	0.69	0.69	0.57	0.64	0.65
Feb	0.67	0.72	0.72	0.60	0.64	0.65
Mar	0.67	0.70	0.71	0.55	0.55	0.56
Apr	0.65	0.64	0.64	0.50	0.49	0.50
May	0.60	0.62	0.62	0.52	0.53	0.53
Jun	0.65	0.65	0.66	0.55	0.54	0.54
Jul	0.69	0.69	0.69	0.59	0.58	0.59
Aug	0.73	0.72	0.73	0.59	0.58	0.59
Sep	0.80	0.80	0.80	0.65	0.64	0.65
Oct	0.78	0.81	0.81	0.68	0.69	0.69
Nov	0.76	0.79	0.79	0.67	0.68	0.69
Dec	0.72	0.75	0.75	0.62	0.64	0.65

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