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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 : 2017/3/20 to 2017/3/23

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
13	2845	-0.21	0.93	2.86	-3.93

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	304	-0.17	0.38	1.28	-1.65
50-100	291	-0.64	1.40	2.86	-3.93
100-150	275	-0.68	1.44	2.40	-3.74
150-200	271	-0.38	1.41	2.51	-3.14
200-250	227	-0.21	1.05	2.02	-3.09
250-300	203	-0.17	0.69	1.41	-1.58
300-350	200	-0.11	0.54	0.85	-1.38
350-400	186	-0.08	0.59	0.95	-1.36
400-450	175	-0.09	0.46	0.79	-0.94
450-500	175	-0.04	0.33	0.61	-0.68
500-550	70	-0.00	0.35	0.66	-0.68
550-600	70	0.04	0.24	0.64	-0.45
600-650	70	0.08	0.22	0.52	-0.37
650-700	70	0.15	0.16	0.58	-0.24
700-750	70	0.16	0.11	0.40	0.01
750-800	70	0.16	0.11	0.38	0.02
800-850	70	0.17	0.12	0.40	0.01
850-900	47	0.19	0.14	0.43	0.01
900-950	1	0.02	0.00	0.02	0.02
950-1000	0	-	-	-	-

Results of QC

A total of 13 profiles (403 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 403

Position on land test

On land: 0 of 13

Invalid position: 0 of 13

Regional range test

Error data (low): 0 of 403

Error data (high): 0 of 403

Gradient test

Error data: 0 of 403

For details of JMA's quality control procedures, please refer to this page.

Summary of QC

No errors were detected with JMA's quality control procedures.
There were differences above 2°C between the results of assimilation and a profile data observed at depths of between 50 and 250m in the seas south from 12°N. It's to be noted that the results of assimilation is considered to be less accurate in the marginal seas.
There was no significant bias in comparison with the results of assimilation by JMA.

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