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Table 3 presents the coefficients of the linear equations of the dry and the wet edges as well as the correlation coefficient of each corresponding linear fit. As reported in Yang et al. (2008), the temporal variations of these coefficients do not have a specific order. In most cases, however, the slopes of the dry and wet edges have a similar trend, indicating that this scattering space will always be triangular or trapezoidal. In most cases, the value of the correlation coefficient is close to 0.9, which indicates the high accuracy of linear fitting of dry and wet edges.

Table 3

Values of dry edge (a1, a2) and wet edge (b1, b2) equations in the studied days of 2010 and 2014

Julian Day	a1		a2		b1		b2		R² (dry edge)		R² (wet edge)
Julian Day	2010	2014	2010	2014	2010	2014	2010	2014	2010	2014	2010	2014
073	−6.18	−4.85	303.04	298.83	19.73	22.96	263.08	266.93	0.87	0.71	0.86	0.73
081	−4.72	−5.77	306.83	304.36	17.99	26.67	268.43	271.11	0.84	0.82	0.86	0.85
089	−8.67	−6.34	305.38	304.64	18.86	27.60	268.98	267.45	0.85	0.53	0.88	0.86
097	−10.92	−9.97	311.01	311.64	18.80	23.53	268.23	274.24	0.91	0.76	0.88	0.85
105	−10.96	−12.21	313.48	312.73	21.62	25.52	270.54	269.44	0.67	0.91	0.79	0.88
113	−7.50	−8.81	308.62	315.43	11.81	18.71	268.35	273.14	0.82	0.76	0.90	0.80
121	−11.77	−11.98	313.16	320.73	11.97	16.81	267.80	277.89	0.84	0.77	0.88	0.85
129	−15.81	−9.88	317.39	321.26	9.57	11.43	275.02	278.82	0.94	0.63	0.75	0.81
137	−12.23	−14.51	320.28	322.64	14.18	10.18	274.97	279.92	0.86	0.83	0.91	0.87
145	−14.32	−13.70	322.63	324.01	12.66	8.37	278.37	282.07	0.79	0.74	0.77	0.61
153	−14.40	−13.11	327.53	322.32	15.75	11.69	279.96	282.96	0.84	0.82	0.87	0.82
161	−16.49	−15.92	328.37	327.87	13.65	16.19	283.35	282.03	0.78	0.77	0.79	0.85
169	−13.53	−17.04	324.30	330.37	19.97	16.75	277.99	286.62	0.83	0.72	0.91	0.80
177	−12.37	−19.39	330.66	332.60	1.97	22.58	299.40	281.70	0.87	0.74	0.48	0.93
185	−13.33	−15.71	332.73	329.49	19.77	13.11	285.65	285.92	0.98	0.78	0.84	0.52
193	−18.04	−14.92	334.83	332.14	20.27	16.88	285.15	287.34	0.94	0.71	0.78	0.84
201	−20.79	−15.13	331.71	330.14	19.85	13.50	285.29	293.04	0.75	0.86	0.88	0.87
209	−11.80	−15.24	329.77	331.38	18.13	12.71	289.18	293.53	0.85	0.73	0.92	0.82
217	−16.94	−11.75	333.35	329.72	28.75	12.45	282.19	296.41	0.90	0.70	0.95	0.82
225	−17.57	−14.87	333.72	331.23	25.65	14.53	286.38	294.94	0.90	0.77	0.91	0.83
233	−22.70	−14.03	333.57	330.54	24.53	23.03	282.73	287.71	0.81	0.72	0.74	0.83
241	−14.87	−15.13	331.10	331.08	22.39	25.72	287.64	286.31	0.88	0.76	0.91	0.90
249	−12.43	−12.77	327.86	326.86	21.69	18.91	285.98	289.70	0.80	0.74	0.94	0.83
257	−16.25	−13.05	325.08	325.32	21.63	18.33	281.73	287.86	0.69	0.66	0.89	0.82
265	−18.53	−17.61	322.60	322.44	21.30	25.96	279.86	279.26	0.76	0.75	0.87	0.93

Julian Day	a1		a2		b1		b2		R² (dry edge)		R² (wet edge)
Julian Day	2010	2014	2010	2014	2010	2014	2010	2014	2010	2014	2010	2014
073	−6.18	−4.85	303.04	298.83	19.73	22.96	263.08	266.93	0.87	0.71	0.86	0.73
081	−4.72	−5.77	306.83	304.36	17.99	26.67	268.43	271.11	0.84	0.82	0.86	0.85
089	−8.67	−6.34	305.38	304.64	18.86	27.60	268.98	267.45	0.85	0.53	0.88	0.86
097	−10.92	−9.97	311.01	311.64	18.80	23.53	268.23	274.24	0.91	0.76	0.88	0.85
105	−10.96	−12.21	313.48	312.73	21.62	25.52	270.54	269.44	0.67	0.91	0.79	0.88
113	−7.50	−8.81	308.62	315.43	11.81	18.71	268.35	273.14	0.82	0.76	0.90	0.80
121	−11.77	−11.98	313.16	320.73	11.97	16.81	267.80	277.89	0.84	0.77	0.88	0.85
129	−15.81	−9.88	317.39	321.26	9.57	11.43	275.02	278.82	0.94	0.63	0.75	0.81
137	−12.23	−14.51	320.28	322.64	14.18	10.18	274.97	279.92	0.86	0.83	0.91	0.87
145	−14.32	−13.70	322.63	324.01	12.66	8.37	278.37	282.07	0.79	0.74	0.77	0.61
153	−14.40	−13.11	327.53	322.32	15.75	11.69	279.96	282.96	0.84	0.82	0.87	0.82
161	−16.49	−15.92	328.37	327.87	13.65	16.19	283.35	282.03	0.78	0.77	0.79	0.85
169	−13.53	−17.04	324.30	330.37	19.97	16.75	277.99	286.62	0.83	0.72	0.91	0.80
177	−12.37	−19.39	330.66	332.60	1.97	22.58	299.40	281.70	0.87	0.74	0.48	0.93
185	−13.33	−15.71	332.73	329.49	19.77	13.11	285.65	285.92	0.98	0.78	0.84	0.52
193	−18.04	−14.92	334.83	332.14	20.27	16.88	285.15	287.34	0.94	0.71	0.78	0.84
201	−20.79	−15.13	331.71	330.14	19.85	13.50	285.29	293.04	0.75	0.86	0.88	0.87
209	−11.80	−15.24	329.77	331.38	18.13	12.71	289.18	293.53	0.85	0.73	0.92	0.82
217	−16.94	−11.75	333.35	329.72	28.75	12.45	282.19	296.41	0.90	0.70	0.95	0.82
225	−17.57	−14.87	333.72	331.23	25.65	14.53	286.38	294.94	0.90	0.77	0.91	0.83
233	−22.70	−14.03	333.57	330.54	24.53	23.03	282.73	287.71	0.81	0.72	0.74	0.83
241	−14.87	−15.13	331.10	331.08	22.39	25.72	287.64	286.31	0.88	0.76	0.91	0.90
249	−12.43	−12.77	327.86	326.86	21.69	18.91	285.98	289.70	0.80	0.74	0.94	0.83
257	−16.25	−13.05	325.08	325.32	21.63	18.33	281.73	287.86	0.69	0.66	0.89	0.82
265	−18.53	−17.61	322.60	322.44	21.30	25.96	279.86	279.26	0.76	0.75	0.87	0.93

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