GTSPP Data Product Centre

GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency

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The last 30 days SOOP observation

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100m TS by NPR-4DVAR

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Ship Observations Team (SOT)

TALLAHASSEE(9V5027, CGU7DKF), PX40
Observation period : 2023/12/29 to 2024/1/11

This page shows results for the PX40 line based on monitoring by the TALLAHASSEE and comparison with the result of assimilation by NPR-4DVAR.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
159	52545	-0.03	0.42	3.22	-2.39

Abbreviations in the table indicate:
AVE: average difference (observation value minus assimilation value)
RMSD: root mean square of difference
MAXD: maximum difference
MIND: minimum difference

Statistics for each depth range

Depth range	Number of data	AVE	RMSD	MAXD	MIND
0-50	3975	-0.01	0.36	1.58	-0.86
50-100	3975	-0.08	0.52	2.39	-2.39
100-150	3975	-0.00	0.63	2.94	-1.85
150-200	3975	-0.05	0.50	1.99	-1.47
200-250	3975	-0.09	0.47	2.49	-1.31
250-300	3975	-0.07	0.42	1.43	-1.85
300-350	3975	-0.01	0.39	1.00	-1.77
350-400	3975	-0.02	0.37	1.15	-1.47
400-450	3975	-0.01	0.35	0.97	-1.35
450-500	3975	-0.01	0.32	1.01	-1.39
500-550	1590	-0.04	0.31	1.03	-1.21
550-600	1590	-0.09	0.30	0.82	-1.33
600-650	1590	-0.12	0.32	1.77	-1.75
650-700	1590	-0.12	0.34	3.10	-1.99
700-750	1590	-0.06	0.37	2.53	-1.92
750-800	1590	-0.00	0.38	3.22	-1.30
800-850	1590	0.07	0.32	2.37	-0.91
850-900	1528	0.12	0.38	2.96	-0.56
900-950	137	0.15	0.25	2.13	-0.18
950-1000	0	-	-	-	-

Results of QC

A total of 159 profiles (71095 data, reported by BATHY or TESAC) were received from the TALLAHASSEE.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 71095

Position on land test

On land: 0 of 159

Invalid position: 0 of 159

Regional range test

Error data (low): 0 of 71095

Error data (high): 0 of 71095

Gradient test

Error data: 12 of 71095

For details of JMA's quality control procedures, please refer to this page.

Summary of QC

QC detected some unnatural profiles shown in 'Results of QC'.
Some observation data deeper than 600m were considered to be erroneous.

Figures

◊Station map	◊Vertical temperature profile Vertical profile of temperature along the observing line of PX40 moved the entire profile by 5 degree Celsius.

◊Vertical observation sections	◊Summary of differences (Obs. - Assim.) by depth Dots and error bars represent the averages and root mean squares of the differences, respectively. Crosses represent the maximum/minimum differences.

◊Vertical sections for the result of assimilation by NPR-4DVAR	◊Distribution of differences (Obs. - Assim.) by depth

◊Vertical sections of differences (Obs. - Assim.)	◊Distribution of differences (Obs. - Assim.) by temperature