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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 : 2020/1/1 to 2020/1/8

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	5115	0.19	0.68	3.21	-3.38

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	450	-0.14	0.37	0.36	-1.94
50-100	425	0.52	1.05	3.03	-2.23
100-150	425	0.51	1.05	3.21	-1.68
150-200	417	0.16	0.85	2.00	-3.38
200-250	400	0.37	0.62	2.29	-0.80
250-300	383	0.25	0.50	1.49	-0.69
300-350	375	0.10	0.64	1.46	-1.02
350-400	375	0.08	0.67	1.58	-1.15
400-450	375	0.04	0.63	1.59	-1.26
450-500	375	0.08	0.42	1.23	-0.65
500-550	150	0.16	0.41	1.45	-0.48
550-600	150	0.22	0.40	1.49	-0.46
600-650	150	0.21	0.38	1.49	-0.24
650-700	147	0.15	0.30	0.95	-0.32
700-750	140	0.11	0.22	0.52	-0.30
750-800	140	0.12	0.23	0.51	-0.24
800-850	139	0.13	0.23	0.52	-0.22
850-900	99	0.18	0.27	0.67	-0.29
900-950	0	-	-	-	-
950-1000	0	-	-	-	-

Results of QC

A total of 28 profiles (939 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 939

Position on land test

On land: 0 of 28

Invalid position: 0 of 28

Regional range test

Error data (low): 0 of 939

Error data (high): 0 of 939

Gradient test

Error data: 0 of 939

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 200 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