Neural Network Based Retrieval of Atmospheric Temperature Profile Using AMSU-A Observations

Table 2

Statistics of temperature fields from NCEP of the training dataset.

Pressure (hPa)	Tropical		Mid-latitude		Polar
	Mean (K)	Standard deviation (K)	Mean (K)	Standard deviation (K)	Mean (K)	Standard deviation (K)
1000	299.75	5.59	288.70	11.23	263.50	12.44
975	297.48	5.64	282.32	11.15	262.69	12.17
950	296.10	5.58	280.96	11.06	262.09	11.87
925	294.76	5.42	279.66	10.91	261.46	11.59
900	293.48	5.16	278.46	10.72	260.79	11.40
850	290.09	4.45	276.20	10.28	259.29	11.20
800	287.85	3.60	273.93	9.84	257.50	11.10
750	285.64	3.09	271.41	9.51	255.42	10.99
700	281.64	2.73	268.57	9.30	258.08	10.72
650	279.13	2.57	265.40	9.12	250.70	10.07
600	275.77	2.57	261.74	8.99	247.98	8.96
550	271.42	2.62	257.66	8.90	244.61	8.16
500	267.30	2.74	253.01	8.84	240.34	7.92
450	262.51	2.93	247.74	8.74	235.46	7.66
400	256.05	3.14	241.74	8.54	230.00	7.26
350	249.48	3.17	235.11	8.09	224.14	6.68
300	241.29	3.04	228.14	7.18	218.82	6.22
250	231.68	2.60	221.94	6.08	216.53	7.78
200	220.35	1.96	218.67	5.89	217.37	10.00
150	207.49	2.42	217.04	5.52	217.18	10.69
100	195.66	4.46	214.31	6.59	215.86	11.89
70	199.45	4.44	214.22	6.09	215.09	13.01
50	206.94	3.51	215.52	5.23	214.76	13.95
30	215.67	2.72	218.18	5.68	215.41	15.22
20	222.01	2.66	221.04	6.82	217.16	16.13
10	230.22	3.23	227.19	8.98	223.02	17.21