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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 : 2021/9/17 to 2021/9/20

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
9	2719	0.31	0.76	3.49	-3.14

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	225	0.18	0.16	0.64	-0.37
50-100	225	0.37	0.76	2.46	-0.87
100-150	225	0.75	1.02	2.76	-1.36
150-200	225	0.14	1.52	2.85	-3.14
200-250	223	0.28	1.14	3.49	-1.95
250-300	200	0.05	0.65	1.45	-1.41
300-350	200	0.27	0.61	1.44	-0.75
350-400	200	0.30	0.54	1.45	-0.46
400-450	200	0.34	0.53	1.53	-0.45
450-500	200	0.38	0.36	1.15	-0.23
500-550	80	0.34	0.29	0.93	-0.13
550-600	80	0.35	0.23	0.91	0.00
600-650	80	0.37	0.17	0.81	0.05
650-700	80	0.37	0.14	0.73	0.11
700-750	80	0.30	0.21	0.81	-0.15
750-800	80	0.24	0.24	0.77	-0.23
800-850	68	0.26	0.27	0.87	-0.17
850-900	46	0.35	0.26	0.93	0.02
900-950	2	0.39	0.01	0.40	0.38
950-1000	0	-	-	-	-

Results of QC

A total of 9 profiles (305 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 305

Position on land test

On land: 0 of 9

Invalid position: 0 of 9

Regional range test

Error data (low): 0 of 305

Error data (high): 0 of 305

Gradient test

Error data: 0 of 305

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 120 and 260 m in areas south of 11°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