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 : 2024/1/3 to 2024/1/7

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
11	3072	0.58	1.46	7.49	-2.75

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	275	0.37	0.92	3.40	-1.71
50-100	275	0.46	1.42	4.43	-2.75
100-150	266	0.76	1.63	5.50	-2.58
150-200	250	0.75	1.93	5.89	-2.11
200-250	250	0.88	1.61	5.73	-1.05
250-300	250	0.87	1.65	6.12	-0.41
300-350	250	0.86	1.96	6.97	-0.63
350-400	247	0.96	2.17	7.49	-0.46
400-450	207	0.46	1.35	7.47	-0.40
450-500	200	0.30	0.39	1.07	-0.22
500-550	80	0.34	0.33	0.87	-0.07
550-600	80	0.30	0.29	0.74	-0.14
600-650	76	0.27	0.30	1.06	-0.31
650-700	70	0.20	0.24	0.58	-0.30
700-750	70	0.17	0.28	0.56	-0.49
750-800	70	0.10	0.36	0.58	-0.76
800-850	70	0.09	0.38	0.58	-0.76
850-900	65	0.16	0.34	0.67	-0.66
900-950	21	0.43	0.25	0.83	0.03
950-1000	0	-	-	-	-

Results of QC

A total of 11 profiles (545 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 545

Position on land test

On land: 0 of 11

Invalid position: 0 of 11

Regional range test

Error data (low): 0 of 545

Error data (high): 0 of 545

Gradient test

Error data: 0 of 545

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

Summary of QC

QC detected no unnatural profiles.
Some observations at around 17°N were considered to be erroneous data.

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