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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 : 2021/7/24 to 2021/7/30

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
28	3985	-0.08	1.01	2.73	-4.63

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	425	-0.23	0.39	0.44	-2.40
50-100	410	-0.71	1.20	1.10	-4.62
100-150	400	-0.93	1.63	2.37	-4.63
150-200	371	-0.14	1.52	2.73	-4.04
200-250	306	0.23	1.13	2.42	-2.25
250-300	293	0.52	0.80	1.85	-1.49
300-350	268	0.53	0.66	1.86	-0.61
350-400	250	0.18	0.41	1.03	-0.58
400-450	250	0.15	0.21	0.83	-0.22
450-500	250	0.14	0.20	0.56	-0.38
500-550	100	0.12	0.20	0.42	-0.36
550-600	100	0.06	0.16	0.43	-0.20
600-650	100	0.02	0.16	0.29	-0.26
650-700	100	0.03	0.14	0.31	-0.26
700-750	100	0.00	0.13	0.34	-0.30
750-800	100	-0.03	0.14	0.16	-0.38
800-850	93	-0.01	0.14	0.18	-0.41
850-900	64	0.04	0.12	0.24	-0.14
900-950	5	0.26	0.03	0.30	0.21
950-1000	0	-	-	-	-

Results of QC

A total of 28 profiles (910 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 910

Position on land test

On land: 0 of 28

Invalid position: 0 of 28

Regional range test

Error data (low): 0 of 910

Error data (high): 0 of 910

Gradient test

Error data: 0 of 910

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 40 and 200 m in areas south of 7°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