[ferret_users] how to compute time axis then interpolate a variable

[Yogesh Tiwari <yogesh.mpi@xxxxxxxxxxxxxx>]

Hello Ferret Users,

 

 I have a simple problem but I am not able to figure it out.

 

I have CO2 observations defined on time axis(yr,mo,day,hr,min,sec). (DATA ATTACHED HERE)

 

First I want to convert time axis as one axis as 'hour' on regular interval as 1 hour. Say 00 hrs to 24hrs(jan1), 25hrs to 48hrs(jan2) and so on.

 

Then I want to interpolate CO2 at every hour. 

 

Kindly anybody can help,

 

Many thanks,

 

Regards,

Yogesh 

 

yr	mo	dy	hr	min	sec	co2obs
1998	1	9	0	35	24	365.19
1998	1	9	1	17	39	363.54
1998	1	9	1	58	41	364.24
1998	1	9	2	39	42	364.88
1998	1	9	3	20	43	365.06
1998	1	9	4	1	44	364.75
1998	1	9	4	42	45	364.77
1998	1	9	5	23	46	364.87
1998	1	9	6	4	51	364.77
1998	1	9	6	45	52	364.73
1998	1	9	7	26	54	364.76
1998	1	9	8	7	55	363.49
1998	1	23	1	6	16	364.31
1998	1	23	1	48	32	364.38
1998	1	23	2	29	33	364.67
1998	1	23	3	10	35	365.53
1998	1	23	3	51	36	365.16
1998	1	23	4	32	37	364.56
1998	1	23	5	13	40	364.62
1998	1	23	5	54	41	365.05
1998	1	23	6	35	42	365.13
1998	1	23	7	16	44	365.45
1998	1	23	7	57	49	364.77
1998	1	23	8	38	49	364.65
1998	2	3	0	44	21	362.43
1998	2	3	1	26	36	363.96
1998	2	3	2	7	38	364.59
1998	2	3	2	48	40	364.62
1998	2	3	3	29	40	366.22
1998	2	3	4	10	41	365.4
1998	2	3	4	51	41	365.34
1998	2	3	5	32	42	365.31
1998	2	3	6	13	44	364.84
1998	2	3	6	54	46	365.07
1998	2	3	7	35	51	364.84
1998	2	3	8	16	50	364.81
1998	2	19	0	35	14	363.41
1998	2	19	1	17	31	362.93
1998	2	19	1	58	32	363.86
1998	2	19	2	39	33	364.87
1998	2	19	3	20	34	366.05
1998	2	19	4	1	36	364.84
1998	2	19	4	42	36	364.77
1998	2	19	5	23	37	365.01
1998	2	19	6	4	39	365
1998	2	19	6	45	39	365.9
1998	2	19	7	26	40	366.24
1998	2	19	8	7	41	366.55
1998	3	5	0	50	20	363.13
1998	3	5	1	32	37	363.6
1998	3	5	2	13	39	364.26
1998	3	5	2	54	40	364.26
1998	3	5	3	35	41	364.39
1998	3	5	4	16	42	365.24
1998	3	5	4	57	42	365.48
1998	3	5	5	38	43	365.01
1998	3	5	6	19	44	365.43
1998	3	5	7	0	45	365.11
1998	3	5	7	41	46	368.54
1998	3	5	8	22	48	364.96
1998	3	19	0	46	36	363.25
1998	3	19	1	28	51	363.8
1998	3	19	2	9	53	364.21
1998	3	19	2	50	55	364.46
1998	3	19	3	31	58	365.61
1998	3	19	4	12	59	365.57
1998	3	19	4	53	59	365.53
1998	3	19	5	35	0	365.38
1998	3	19	6	16	3	366.23
1998	3	19	6	57	4	364.28
1998	3	19	7	38	6	367.08
1998	3	19	8	19	5	369.19
1998	4	2	1	8	1	363.76
1998	4	2	1	50	17	365.14
1998	4	2	2	31	18	365.26
1998	4	2	3	12	21	364.7
1998	4	2	3	53	24	364.04
1998	4	2	4	34	25	366.13
1998	4	2	5	15	25	366.11
1998	4	2	5	56	26	366.34
1998	4	2	6	37	27	367.9
1998	4	2	7	18	28	367.3
1998	4	2	7	59	30	367.02
1998	4	2	8	40	35	367.6
1998	4	16	0	43	37	364.53
1998	4	16	1	25	51	364.09
1998	4	16	2	6	53	365.12
1998	4	16	2	47	55	365.41
1998	4	16	3	28	57	365.4
1998	4	16	4	9	57	365.24
1998	4	24	0	45	51	364.34
1998	4	24	1	28	5	364.78
1998	4	24	2	9	7	364.78
1998	4	24	2	50	9	364.99
1998	4	24	3	31	10	364.62
1998	4	24	4	12	11	365.86
1998	4	24	4	53	12	367.95
1998	4	24	5	34	13	367.97
1998	4	24	6	15	17	367.19
1998	4	24	6	56	18	368.56
1998	4	24	7	37	20	370.28
1998	4	24	8	18	20	369.23
1998	5	7	0	46	14	364.62
1998	5	7	1	28	28	365.45
1998	5	7	2	9	29	365.22
1998	5	7	2	50	31	365.77
1998	5	7	3	31	31	365.87
1998	5	7	4	12	33	366.1
1998	5	7	4	53	34	366.07
1998	5	7	5	34	34	369.69
1998	5	7	6	15	36	369.66
1998	5	7	6	56	38	370.46
1998	5	7	7	37	39	368.98
1998	5	7	8	18	40	368.6
1998	5	21	0	27	3	367.12
1998	5	21	1	9	18	366.16
1998	5	21	1	50	19	367.27
1998	5	21	2	31	20	366.22
1998	5	21	3	12	22	368.61
1998	5	21	3	53	24	367.24
1998	5	21	4	34	24	366.84
1998	5	21	5	15	25	370.65
1998	5	21	5	56	27	369
1998	5	21	6	37	28	369.96
1998	5	21	7	18	31	369.58
1998	5	21	7	59	32	368.42
1998	6	4	0	46	12	365.12
1998	6	4	1	28	27	366.55
1998	6	4	2	9	27	366.1
1998	6	4	2	50	28	366.98
1998	6	4	3	31	30	367.69
1998	6	4	4	12	31	366.79
1998	6	4	4	53	31	368.43
1998	6	4	5	34	32	368.46
1998	6	4	6	15	34	368.71
1998	6	4	6	56	35	369.91
1998	6	4	7	37	36	368.71
1998	6	4	8	18	38	369.38
1998	6	18	0	30	55	365.16
1998	6	18	1	13	10	366.67
1998	6	18	1	54	13	365.79
1998	6	18	2	35	14	366.48
1998	6	18	3	16	15	366.79
1998	6	18	3	57	16	367.88
1998	6	18	4	38	16	367.84
1998	6	18	5	19	17	368.39
1998	6	18	6	0	18	368.65
1998	6	18	6	41	20	368.8
1998	6	18	7	22	20	368.37
1998	6	18	8	3	21	367.93
1998	7	12	0	34	47	365.17
1998	7	12	1	17	2	366.45
1998	7	12	1	58	2	366.72
1998	7	12	2	39	2	366.23
1998	7	12	3	20	3	366.31
1998	7	12	4	1	5	367.07
1998	7	12	4	42	7	367.44
1998	7	12	5	23	10	366.94
1998	7	12	6	4	12	367.27
1998	7	12	6	45	13	367.45
1998	7	12	7	26	15	366.59
1998	7	12	8	7	15	365.04
1998	7	23	0	43	7	367.07
1998	7	23	1	25	22	366.46
1998	7	23	2	6	22	366.27
1998	7	23	2	47	23	365.89
1998	7	23	3	28	26	365.74
1998	7	23	4	9	27	366.39
1998	7	23	4	50	28	366.63
1998	7	23	5	31	29	366.51
1998	7	23	6	12	32	366.5
1998	7	23	6	53	33	365.7
1998	7	23	7	34	34	365.21
1998	7	23	8	15	35	364.58
1998	8	6	1	16	54	366.86
1998	8	6	1	59	10	366.19
1998	8	6	2	40	12	366.5
1998	8	6	3	21	13	366.14
1998	8	6	4	2	15	366.11
1998	8	6	4	43	16	366.2
1998	8	6	5	24	16	366.63
1998	8	6	6	5	18	366.38
1998	8	6	6	46	19	364.87
1998	8	6	7	27	20	363.89
1998	8	6	8	8	22	364.76
1998	8	6	8	49	22	363.34
1998	8	20	1	4	3	366.07
1998	8	20	1	46	17	366.21
1998	8	20	2	27	18	365.33
1998	8	20	3	8	19	365.86
1998	8	20	3	49	20	366.24
1998	8	20	4	30	23	366.6
1998	8	20	5	11	24	366.05
1998	8	20	5	52	24	366.27
1998	8	20	6	33	26	364.84
1998	8	20	7	14	27	364.47
1998	8	20	7	55	29	364.63
1998	8	20	8	36	30	364.82
1998	9	11	0	39	33	366.17
1998	9	11	1	21	48	366.52
1998	9	11	2	2	50	365.89
1998	9	11	2	43	50	365.66
1998	9	11	3	24	52	365.08
1998	9	11	4	5	53	364.96
1998	9	11	4	46	53	364.48
1998	9	11	5	27	54	364.61
1998	9	11	6	8	55	363.21
1998	9	11	6	49	56	363.47
1998	9	11	7	30	57	363.63
1998	9	11	8	11	56	363.51
1998	9	30	0	28	5	362.82
1998	9	30	1	10	19	365.66
1998	9	30	1	51	20	365.77
1998	9	30	2	32	21	364.92
1998	9	30	3	13	22	365.08
1998	9	30	3	54	25	365.38
1998	9	30	4	35	26	364.68
1998	9	30	5	16	27	364.65
1998	9	30	5	57	29	364.41
1998	9	30	6	38	31	364.48
1998	9	30	7	19	32	364
1998	9	30	8	0	32	364.38
1998	10	14	0	21	30	367.09
1998	10	14	1	3	46	365.35
1998	10	14	1	44	48	366.23
1998	10	14	2	25	49	365.65
1998	10	14	3	6	50	365.26
1998	10	14	3	47	51	365.42
1998	10	14	4	28	53	365
1998	10	14	5	9	55	364.52
1998	10	14	5	50	56	364.46
1998	10	14	6	31	58	364.46
1998	10	14	7	12	59	363.35
1998	10	14	7	53	59	362.69
1998	10	29	0	31	14	366.31
1998	10	29	1	13	29	366.87
1998	10	29	1	54	32	365.42
1998	10	29	2	35	33	365.78
1998	10	29	3	16	33	365.54
1998	10	29	3	57	34	365.59
1998	10	29	4	38	35	365.12
1998	10	29	5	19	36	364.8
1998	10	29	6	0	40	364.57
1998	10	29	6	41	41	364.33
1998	10	29	7	22	42	365.62
1998	10	29	8	3	42	365.26
1998	11	11	0	37	2	367.06
1998	11	11	1	19	17	366.36
1998	11	11	2	0	18	365.8
1998	11	11	2	41	19	366.03
1998	11	11	3	22	21	365.43
1998	11	11	4	3	24	365.28
1998	11	11	4	44	24	365.4
1998	11	11	5	25	25	365.27
1998	11	11	6	6	26	365.49
1998	11	11	6	47	28	365.31
1998	11	11	7	28	29	365.43
1998	11	11	8	9	30	364.48
1998	11	26	1	23	32	366.19
1998	11	26	2	5	48	366.36
1998	11	26	2	46	49	366.7
1998	11	26	3	27	51	365.93
1998	11	26	4	8	52	366.52
1998	11	26	4	49	53	366.22
1998	11	26	5	30	54	365.85
1998	11	26	6	11	55	365.61
1998	11	26	6	52	56	365.9
1998	11	26	7	33	58	366.28
1998	11	26	8	14	58	365.39
1998	11	26	8	55	56	365.71
1998	12	10	0	46	33	365.89
1998	12	10	1	28	48	366.38
1998	12	10	2	9	50	366.05
1998	12	10	2	50	50	365.15
1998	12	10	3	31	51	365.38
1998	12	10	4	12	52	366.17
1998	12	10	4	53	54	366.41
1998	12	10	5	34	53	366.09
1998	12	10	6	15	55	365.94
1998	12	10	6	56	56	366.32
1998	12	10	7	37	57	366.7
1998	12	10	8	18	58	366.16
1998	12	25	0	36	29	366.36
1998	12	25	1	18	45	365.81
1998	12	25	1	59	46	365.91
1998	12	25	2	40	47	365.85
1998	12	25	3	21	49	366.38
1998	12	25	4	2	51	366.79
1998	12	25	4	43	51	366.72
1998	12	25	5	24	52	366.87
1998	12	25	6	5	54	366.76
1998	12	25	6	46	55	366.56
1998	12	25	7	27	56	366.73
1998	12	25	8	8	56	365.88