Precipitation Trends over Time Using Mann-Kendall and Spearman’s rho Tests in Swat River Basin, Pakistan

Table 3

MK and SR tests results for precipitation in monthly time series.

Station	Test	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.
Thalozom	MK	−0.63	−1.09	−0.42	−2.19	−0.33	2.72	−0.80	−0.94	−0.29	0.10	1.46	0.30
	SR	−0.44	−1.01	−0.39	−2.15	−0.40	2.93	−0.79	−1.03	−0.13	0.28	1.41	0.13
Drosh	MK	−0.08	−0.24	0.16	−0.67	0.63	1.51	−1.94	−3.16	−0.63	0.40	1.03	0.01
	SR	−0.14	−0.01	0.08	−0.79	0.67	1.73	−1.87	−3.36	−0.50	0.39	1.01	0.17
Kalam	MK	−0.37	−0.67	0.33	−2.21	−0.63	2.19	−1.15	−1.04	−0.54	0.14	1.20	0.17
	SR	−0.23	−0.52	0.23	−2.13	−0.64	2.29	−1.13	−1.07	−0.43	0.14	0.91	−0.66
Dir	MK	0.00	−0.63	−2.48	−0.21	−0.79	1.12	−0.15	0.03	1.74	−1.31	−0.34	−0.89
	SR	−0.16	−0.62	−2.80	−0.18	−1.00	1.07	−0.01	−0.02	2.03	−1.63	−0.49	−1.01
Madyan	MK	0.89	0.75	1.10	−0.83	0.86	3.53	−3.12	−3.38	−0.23	1.90	2.72	1.34
	SR	0.86	0.70	1.13	−0.67	0.85	4.26	−3.24	−3.98	−0.16	2.00	3.01	1.32
Khairabad	MK	0.91	−0.68	−0.21	−0.80	2.01	3.85	−3.12	−3.48	−0.19	2.68	2.92	1.12
	SR	0.82	−0.72	−0.28	−0.79	2.04	4.46	−3.34	−4.60	−0.17	3.08	3.25	0.97
ToorCamp	MK	1.92	0.93	0.45	−0.70	−0.44	−0.86	−2.91	−2.96	−2.27	−2.01	0.94	0.28
	SR	1.78	0.85	0.25	−0.82	−0.47	−0.91	−3.17	−3.61	−2.79	−2.33	1.04	0.20
Saidu Sharif	MK	2.74	2.46	2.22	1.82	2.85	3.27	−3.34	−3.09	0.03	3.19	3.57	2.10
	SR	3.02	2.62	2.61	2.05	3.24	3.83	−3.60	−3.87	0.20	3.64	4.05	2.17
Malakand	MK	1.05	−1.72	−1.15	0.10	2.28	3.22	−3.18	−2.93	0.16	3.50	2.73	1.49
	SR	0.99	−2.02	−1.32	0.22	2.54	3.02	−3.80	−3.82	0.23	3.97	2.23	0.91
Kulangi	MK	0.70	−0.99	−2.94	−1.44	−0.62	0.36	0.00	1.74	2.91	−1.64	−0.03	−2.04
	SR	0.59	−1.04	−3.15	−1.41	−0.81	0.24	0.08	1.65	3.36	−1.85	−0.31	−2.31
Ambahar	MK	0.31	−0.66	−2.84	−1.05	−1.15	0.60	0.18	0.60	3.04	−1.36	−0.21	−1.80
	SR	0.38	−0.70	−2.82	−1.11	−1.18	0.58	0.19	0.34	3.56	−1.51	−0.29	−2.01
Abazai	MK	2.33	−0.25	−0.91	1.37	2.92	4.49	−2.62	−1.07	1.02	3.31	3.92	2.61
	SR	2.22	−0.29	−0.90	1.62	2.89	4.35	−3.07	−1.09	1.37	3.85	3.66	2.72
Mardan	MK	2.43	1.34	0.41	0.01	1.05	0.70	0.14	−0.16	1.00	−0.58	−1.31	−1.37
	SR	2.53	1.34	0.50	0.11	1.10	0.72	0.25	−0.20	0.88	−0.51	−1.15	−1.15
Charsadda	MK	2.32	1.09	0.32	−0.12	0.15	0.34	0.14	−0.14	0.56	−1.04	−2.17	−1.59
	SR	2.37	1.09	0.26	−0.24	0.32	0.44	0.22	−0.33	0.43	−0.97	−2.04	−1.31
Risalpur	MK	1.91	1.28	0.06	−0.27	−0.33	−0.37	−0.06	−0.63	−0.26	−1.46	−1.87	−2.17
	SR	2.13	1.13	0.06	−0.36	−0.17	−0.25	−0.05	−0.72	−0.26	−1.50	−2.11	−2.16

Significant trend at 5% significance level of two-tailed test.