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 : 2024/3/24 to 2024/4/4

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
170	54677	0.05	0.52	4.47	-2.84

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	4250	0.12	0.44	1.93	-1.69
50-100	4250	0.00	0.53	2.17	-2.14
100-150	4250	-0.01	0.59	1.80	-2.84
150-200	4219	0.09	0.68	2.55	-2.81
200-250	4125	0.00	0.56	2.30	-2.25
250-300	4125	0.01	0.52	1.53	-2.80
300-350	4102	0.05	0.51	1.68	-2.74
350-400	4100	0.10	0.47	1.65	-2.07
400-450	4097	0.09	0.48	2.16	-1.61
450-500	4075	0.08	0.53	2.69	-2.32
500-550	1630	0.04	0.52	2.68	-2.33
550-600	1620	-0.03	0.48	2.30	-2.20
600-650	1612	-0.07	0.49	2.31	-2.32
650-700	1610	-0.08	0.45	2.53	-2.27
700-750	1610	-0.02	0.43	3.14	-1.53
750-800	1610	0.04	0.41	3.67	-1.03
800-850	1607	0.10	0.43	3.90	-0.79
850-900	1569	0.15	0.45	4.40	-0.55
900-950	216	0.19	0.40	4.47	-0.34
950-1000	0	-	-	-	-

Results of QC

A total of 170 profiles (76225 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 76225

Position on land test

On land: 0 of 170

Invalid position: 0 of 170

Regional range test

Error data (low): 0 of 76225

Error data (high): 24 of 76225

Gradient test

Error data: 33 of 76225

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 600 m 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