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 : 2023/12/2 to 2023/12/7

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
19	4324	0.27	0.68	2.48	-2.61

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	0.17	0.61	1.95	-2.45
50-100	375	0.12	0.84	2.06	-2.61
100-150	375	0.18	1.04	2.27	-2.41
150-200	375	0.29	0.80	1.84	-2.08
200-250	375	0.35	0.63	2.27	-0.72
250-300	350	0.42	0.65	2.22	-0.69
300-350	325	0.43	0.63	2.14	-0.74
350-400	309	0.32	0.64	2.09	-0.67
400-450	300	0.21	0.63	2.16	-0.56
450-500	295	0.22	0.68	2.48	-0.69
500-550	110	0.15	0.28	0.99	-0.20
550-600	110	0.23	0.28	1.20	-0.17
600-650	110	0.30	0.30	1.19	-0.11
650-700	110	0.27	0.38	1.27	-0.37
700-750	110	0.32	0.44	1.27	-0.47
750-800	110	0.32	0.47	1.16	-0.30
800-850	98	0.27	0.43	1.26	-0.25
850-900	90	0.25	0.32	1.00	-0.15
900-950	22	0.39	0.25	0.99	0.03
950-1000	0	-	-	-	-

Results of QC

A total of 19 profiles (962 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 962

Position on land test

On land: 0 of 19

Invalid position: 0 of 19

Regional range test

Error data (low): 0 of 962

Error data (high): 0 of 962

Gradient test

Error data: 0 of 962

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 220 m and 500 m in the seas around 15°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