UV Index for Public Health Awareness Based on OMI/NASA Satellite Data at King Abdulaziz University, Saudi Arabia

Table 3

Analysis of the mean monthly UVI during the study period at KAU.

		Jan.	Feb.	Mar.	April	May	June	July	Aug.	Sep.	Oct.	Nov.	Dec.
		31	29	31	30	31	30	31	31	30	31	30	31
Mean		6.26	7.76	10.12	11.03	11.75	11.43	10.96	11.17	10.30	9.28	7.15	6.03
Std. error of mean		.0627	.1060	.1270	.0318	.0352	.0222	.0202	.0386	.0552	.1191	.0879	.0284
Median		6.177^a	7.660^a	9.960^a	11.03^a	11.81^a	11.43^a	10.95^a	11.21^a	10.30^a	9.41^a	7.11^a	6.05^a
Mode		6.04^b	6.85^b	9.56^b	11.01	11.83	11.40^b	10.95	11.27^b	10.41	9.03^b	6.82^b	5.83^b
Std. deviation		.3493	.5707	.7073	.1742	.1961	.1218	.1123	.2147	.3025	.6633	.4812	.1581
Variance		.122	.326	.500	.030	.038	.015	.013	.046	.092	.440	.232	.025
Skewness		.529	.311	-.153	.049	-1.033	.869	1.026	-.515	-.231	-.458	.243	.106
Std. error of skewness		.421	.434	.421	.427	.421	.427	.421	.421	.427	.421	.427	.421
Kurtosis		.147	-.956	-.834	-.989	.531	3.566	1.138	-.434	-1.190	-.548	-.876	-.808
Std. error of kurtosis		.821	.845	.821	.833	.821	.833	.821	.821	.833	.821	.833	.821
Range		1.44	2.01	2.60	.61	.81	.65	.48	.81	.99	2.65	1.91	.57
Minimum		5.63	6.85	8.62	10.72	11.25	11.18	10.78	10.72	9.79	7.66	6.26	5.76
Maximum		7.07	8.86	11.22	11.33	12.06	11.83	11.26	11.53	10.78	10.31	8.17	6.33
Sum		194.1	225.1	313.9	330.9	364.4	342.9	339.8	346.1	309.0	287.8	214.6	186.9
Percentiles	25	6.065	7.350	9.570	10.89	11.70	11.39	10.90	11.02	10.08	8.715	6.800	5.913
	50	6.177	7.660	9.960	11.02	11.81	11.43	10.95	11.21	10.30	9.410	7.110	6.047
	75	6.431	8.272	10.75	11.18	11.88	11.48	10.98	11.30	10.55	9.883	7.603	6.142

^aCalculated from grouped data. ^bMultiple modes exist. The smallest value is shown.