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

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Ship Observations Team (SOT)

NORTHEWEST SANDERLING(VNVZ), PX11
Observation period : 2018/11/2 to 2018/11/7

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	1804	-0.27	1.04	4.06	-3.74

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	150	-0.50	0.57	0.60	-1.94
50-100	150	-0.72	0.94	2.10	-2.43
100-150	150	0.99	1.45	4.06	-1.41
150-200	150	0.20	1.70	3.98	-2.19
200-250	150	-0.99	1.43	1.87	-3.74
250-300	150	-0.81	0.76	0.20	-2.61
300-350	150	-0.45	0.46	0.36	-1.61
350-400	140	-0.39	0.61	0.77	-1.62
400-450	125	-0.32	0.52	0.34	-1.47
450-500	125	-0.12	0.47	0.51	-1.13
500-550	50	-0.07	0.43	0.54	-0.81
550-600	50	-0.20	0.41	0.43	-0.83
600-650	50	-0.13	0.30	0.26	-0.66
650-700	50	-0.10	0.24	0.25	-0.49
700-750	50	-0.13	0.25	0.19	-0.58
750-800	50	-0.15	0.26	0.24	-0.55
800-850	42	-0.09	0.27	0.29	-0.46
850-900	20	-0.03	0.33	0.31	-0.39
900-950	2	0.01	0.32	0.33	-0.32
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 50 and 300 m, 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