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

Data on SOOP lines

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100m TS by NPR-4DVAR

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Ship Observations Team (SOT)

RYOFU MARU III(JGQH), PX46
Observation period : 2022/4/29 to 2022/5/4

This page shows results for the PX46 line based on monitoring by the RYOFU MARU III and comparison with the result of assimilation by NPR-4DVAR.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
15	5265	0.16	0.48	1.46	-1.88

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	375	0.12	0.41	1.19	-1.15
50-100	375	0.06	0.58	1.06	-1.39
100-150	375	-0.10	0.55	0.98	-1.87
150-200	375	-0.04	0.62	1.46	-1.88
200-250	375	0.05	0.51	1.41	-1.14
250-300	375	0.15	0.53	1.18	-1.35
300-350	375	0.29	0.58	1.18	-1.38
350-400	375	0.31	0.51	1.31	-1.20
400-450	375	0.37	0.44	1.07	-0.80
450-500	375	0.41	0.46	1.29	-0.74
500-550	150	0.35	0.45	1.11	-0.88
550-600	150	0.23	0.34	0.74	-0.77
600-650	150	0.10	0.30	0.48	-0.85
650-700	150	0.07	0.23	0.47	-0.63
700-750	150	0.10	0.17	0.41	-0.28
750-800	150	0.13	0.14	0.43	-0.25
800-850	150	0.17	0.14	0.47	-0.16
850-900	150	0.20	0.12	0.44	0.03
900-950	150	0.20	0.10	0.39	0.04
950-1000	150	0.16	0.07	0.34	0.03

Results of QC

A total of 15 profiles (338 data, reported by BATHY or TESAC) were received from the RYOFU MARU III.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 338

Position on land test

On land: 0 of 15

Invalid position: 0 of 15

Regional range test

Error data (low): 0 of 338

Error data (high): 0 of 338

Gradient test

Error data: 0 of 338

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

Summary of QC

QC detected no unnatural profiles.
There was no significant bias in comparison with the results of assimilation by JMA.

Figures

◊Station map	◊Vertical temperature profile Vertical profile of temperature along the observing line of PX46 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