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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 : 2021/2/9 to 2021/2/18

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
18	1579	0.46	1.04	4.11	-3.61

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	200	0.28	0.21	0.58	-0.47
50-100	200	0.30	1.01	2.69	-1.62
100-150	177	0.57	1.64	3.82	-3.54
150-200	160	0.82	1.85	4.11	-3.61
200-250	131	0.86	1.45	3.81	-3.11
250-300	100	0.36	0.52	1.05	-0.70
300-350	100	0.53	0.43	1.38	-0.07
350-400	100	0.33	0.40	1.14	-0.23
400-450	100	0.41	0.43	1.15	-0.24
450-500	100	0.49	0.36	1.16	0.03
500-550	40	0.47	0.28	0.82	0.14
550-600	40	0.41	0.20	0.74	0.11
600-650	29	0.28	0.26	0.65	-0.17
650-700	20	0.08	0.28	0.37	-0.21
700-750	20	0.06	0.29	0.35	-0.25
750-800	20	0.01	0.33	0.35	-0.35
800-850	20	0.02	0.32	0.34	-0.35
850-900	20	0.07	0.26	0.33	-0.24
900-950	2	0.11	0.23	0.34	-0.12
950-1000	0	-	-	-	-

Results of QC

A total of 18 profiles (528 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 528

Position on land test

On land: 0 of 18

Invalid position: 0 of 18

Regional range test

Error data (low): 0 of 528

Error data (high): 0 of 528

Gradient test

Error data: 0 of 528

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 240 m in areas south of 9°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