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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 : 2019/11/10 to 2019/11/16

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
31	6374	0.18	0.70	2.90	-3.66

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	566	-0.13	0.31	0.76	-1.17
50-100	525	0.13	0.94	2.78	-2.95
100-150	525	0.37	1.12	2.90	-3.66
150-200	525	0.12	0.93	2.41	-2.54
200-250	511	0.30	0.96	2.35	-2.00
250-300	500	0.37	0.86	2.19	-1.56
300-350	500	0.32	0.71	2.62	-1.07
350-400	460	0.18	0.44	2.34	-0.94
400-450	450	0.09	0.40	0.84	-0.85
450-500	450	0.12	0.35	0.71	-0.61
500-550	180	0.14	0.33	0.79	-0.69
550-600	180	0.17	0.31	0.89	-0.52
600-650	180	0.19	0.28	0.75	-0.43
650-700	180	0.22	0.29	0.77	-0.35
700-750	180	0.20	0.26	0.75	-0.29
750-800	177	0.16	0.25	0.61	-0.31
800-850	162	0.11	0.23	0.54	-0.26
850-900	121	0.12	0.23	0.65	-0.30
900-950	2	0.13	0.01	0.14	0.12
950-1000	0	-	-	-	-

Results of QC

A total of 31 profiles (1001 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 1001

Position on land test

On land: 0 of 31

Invalid position: 0 of 31

Regional range test

Error data (low): 0 of 1001

Error data (high): 0 of 1001

Gradient test

Error data: 0 of 1001

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 350 m in areas south of 11°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