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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

Data on SOOP lines

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100m TS by NPR-4DVAR

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Ship Observations Team (SOT)

KEIFU MARU(JPBN), PX46
Observation period : 2021/6/10 to 2021/6/17

This page shows results for the PX46 line based on monitoring by the KEIFU MARU and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
26	9126	0.09	0.58	2.90	-1.87

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	650	0.02	0.75	1.98	-1.82
50-100	650	-0.04	0.86	2.82	-1.87
100-150	650	-0.08	0.90	2.90	-1.74
150-200	650	0.03	0.70	2.28	-1.55
200-250	650	-0.02	0.60	1.15	-1.79
250-300	650	-0.05	0.52	1.24	-1.83
300-350	650	-0.02	0.48	1.18	-1.41
350-400	650	0.07	0.49	1.45	-1.16
400-450	650	0.21	0.48	1.61	-0.74
450-500	650	0.33	0.47	1.71	-0.64
500-550	260	0.37	0.46	1.71	-0.38
550-600	260	0.32	0.40	1.62	-0.31
600-650	260	0.22	0.31	1.25	-0.26
650-700	260	0.17	0.20	0.97	-0.20
700-750	260	0.17	0.16	0.63	-0.14
750-800	260	0.18	0.14	0.57	-0.08
800-850	260	0.17	0.13	0.45	-0.06
850-900	260	0.15	0.11	0.39	-0.04
900-950	260	0.14	0.10	0.36	-0.03
950-1000	260	0.11	0.09	0.37	-0.05

Results of QC

A total of 26 profiles (569 data, reported by BATHY or TESAC) were received from the KEIFU MARU.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 569

Position on land test

On land: 0 of 26

Invalid position: 0 of 26

Regional range test

Error data (low): 0 of 569

Error data (high): 0 of 569

Gradient test

Error data: 0 of 569

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

Summary of QC

QC detected no unnatural profiles.
There were differences above 2°C at a depth of about 100 m in the seas around 44°N. The observation data showed sharper thermocline than the assimilation data.

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 MOVE-NP	◊Distribution of differences (Obs. - Assim.) by depth

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