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)

NORTHWEST SANDERLING(VNVZ), PX11
Observation period : 2023/3/19 to 2023/3/26

This page shows results for the PX11 line based on monitoring by the NORTHWEST SANDERLING and comparison with the result of assimilation by NPR-4DVAR.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
23	3754	0.13	0.71	3.21	-4.49

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	384	-0.35	0.49	1.01	-1.74
50-100	375	-0.09	1.15	1.68	-4.49
100-150	356	0.05	1.13	3.18	-4.23
150-200	292	0.43	0.79	3.21	-2.04
200-250	275	0.38	0.67	2.14	-1.03
250-300	275	0.35	0.64	2.23	-0.96
300-350	275	0.48	0.45	1.50	-0.34
350-400	275	0.32	0.45	1.17	-0.66
400-450	275	0.14	0.31	0.94	-0.54
450-500	275	0.05	0.27	0.44	-0.49
500-550	110	0.04	0.29	0.51	-0.55
550-600	110	0.03	0.27	0.49	-0.52
600-650	110	0.05	0.22	0.57	-0.38
650-700	104	0.04	0.17	0.33	-0.34
700-750	100	0.07	0.19	0.36	-0.29
750-800	86	0.10	0.19	0.35	-0.28
800-850	53	0.08	0.19	0.33	-0.39
850-900	22	0.10	0.04	0.16	0.03
900-950	2	0.11	0.01	0.12	0.10
950-1000	0	-	-	-	-

Results of QC

A total of 23 profiles (734 data, reported by BATHY or TESAC) were received from the NORTHWEST SANDERLING.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 734

Position on land test

On land: 0 of 23

Invalid position: 0 of 23

Regional range test

Error data (low): 0 of 734

Error data (high): 0 of 734

Gradient test

Error data: 0 of 734

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

Summary of QC

QC detected no unnatural profiles.
At the depths between 50 m and 160 m in the seas around 8°N, there were differences above 2°C between observation data and the results of assimilation.

Figures

◊Station map	◊Vertical temperature profile Vertical profile of temperature along the observing line of PX11 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