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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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Ship Observations Team (SOT)

RYOFU MARU III(JGQH), PX45
Observation period : 2015/1/11 to 2015/1/24

This page shows results for the PX45 line based on monitoring by the RYOFU MARU III and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
40	13931	-0.26	0.83	2.44	-5.67

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	1000	-0.14	1.34	1.09	-3.60
50-100	1000	-0.54	1.39	0.99	-5.51
100-150	1000	-0.75	1.13	2.44	-5.67
150-200	1000	-0.63	0.98	2.01	-5.60
200-250	1000	-0.42	0.82	2.09	-4.68
250-300	1000	-0.27	0.78	1.49	-3.67
300-350	1000	-0.19	0.63	1.26	-3.07
350-400	1000	-0.12	0.59	1.98	-2.59
400-450	1000	-0.14	0.52	2.01	-2.09
450-500	992	-0.12	0.28	1.63	-1.79
500-550	390	-0.12	0.38	1.13	-1.54
550-600	390	-0.14	0.36	1.01	-1.31
600-650	390	-0.16	0.34	0.69	-1.21
650-700	390	-0.15	0.30	0.69	-1.19
700-750	390	-0.10	0.25	0.88	-1.06
750-800	390	-0.05	0.23	0.98	-0.81
800-850	390	-0.01	0.20	1.08	-0.61
850-900	390	0.02	0.16	0.99	-0.49
900-950	390	0.02	0.16	0.48	-0.52
950-1000	390	-0.01	0.04	0.40	-0.58

Results of QC

A total of 40 profiles (873 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 873

Position on land test

On land: 0 of 40

Invalid position: 0 of 40

Regional range test

Error data (low): 0 of 873

Error data (high): 0 of 873

Gradient test

Error data: 0 of 873

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

Summary of QC

No errors were detected with JMA's quality control procedures.
There was no significant bias in comparison with the results of assimilation by JMA.
There were differences above 2°C between observation data and the results of assimilation at a depth of around 100 m in the seas south of 12°N .
There were large differences between observation data and the results of assimilation in areas north of the Kuroshio front (around 33°N).

Figures

◊Station map	◊Vertical temperature profile Vertical profile of temperature along the observing line of PX45 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 MOVE-NP	◊Distribution of differences (Obs. - Assim.) by depth

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