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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 : 2021/10/15 to 2021/10/21

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
14	2376	0.38	0.61	2.92	-2.60

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	0.13	0.40	0.87	-0.97
50-100	200	0.29	1.04	2.33	-2.60
100-150	200	0.82	0.87	2.58	-1.62
150-200	200	0.40	0.79	2.92	-0.83
200-250	200	0.52	0.57	2.06	-0.88
250-300	200	0.41	0.79	2.16	-1.47
300-350	200	0.30	0.58	1.57	-1.10
350-400	200	0.34	0.24	0.82	-0.14
400-450	181	0.33	0.29	0.77	-0.23
450-500	175	0.40	0.25	0.80	-0.16
500-550	63	0.40	0.19	0.76	0.07
550-600	60	0.29	0.22	0.80	0.01
600-650	60	0.25	0.14	0.55	-0.01
650-700	60	0.31	0.15	0.54	0.04
700-750	52	0.30	0.15	0.51	0.05
750-800	50	0.31	0.18	0.57	-0.01
800-850	47	0.28	0.24	0.66	-0.11
850-900	24	0.25	0.18	0.42	-0.10
900-950	4	0.42	0.01	0.44	0.42
950-1000	0	-	-	-	-

Results of QC

A total of 14 profiles (476 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 476

Position on land test

On land: 0 of 14

Invalid position: 0 of 14

Regional range test

Error data (low): 0 of 476

Error data (high): 0 of 476

Gradient test

Error data: 0 of 476

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 100 and 180 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 deeper mixed layer and 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