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GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency

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NORTHEWEST SANDERLING(VNVZ), PX11
Observation period : 2021/5/18 to 2021/5/21

This page shows results for the PX11 line based on monitoring by the NORTHEWEST SANDERLING and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
20	6504	0.37	0.89	5.20	-3.55

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	500	0.14	0.43	2.46	-1.47
50-100	500	0.62	1.32	5.06	-3.55
100-150	500	0.80	1.70	5.20	-3.47
150-200	500	0.82	1.30	3.90	-2.68
200-250	500	0.72	1.02	3.64	-1.49
250-300	500	0.61	0.80	2.89	-0.92
300-350	500	0.35	0.67	2.66	-0.69
350-400	500	0.17	0.48	1.54	-0.85
400-450	500	0.05	0.36	0.78	-0.80
450-500	500	0.08	0.29	0.70	-0.59
500-550	200	0.11	0.25	0.65	-0.33
550-600	200	0.12	0.25	0.62	-0.46
600-650	199	0.11	0.26	0.69	-0.63
650-700	190	0.17	0.23	0.76	-0.51
700-750	190	0.16	0.19	0.69	-0.30
750-800	190	0.14	0.17	0.48	-0.32
800-850	185	0.14	0.15	0.43	-0.28
850-900	139	0.15	0.12	0.39	-0.19
900-950	11	0.27	0.13	0.45	0.12
950-1000	0	-	-	-	-

Results of QC

A total of 20 profiles (757 data, reported by BATHY or TESAC) were received from the NORTHEWEST SANDERLING.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 757

Position on land test

On land: 0 of 20

Invalid position: 0 of 20

Regional range test

Error data (low): 0 of 757

Error data (high): 0 of 757

Gradient test

Error data: 0 of 757

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

Summary of QC

QC detected no unnatural profiles.
At depths of between 60 and 340 m in areas south of 8°N, there were differences above 2°C between observation data and the results of assimilation. 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 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 MOVE-NP	◊Distribution of differences (Obs. - Assim.) by depth

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