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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)

CAP PASADO(V2DV4), PX13
Observation period : 2018/5/9 to 2018/5/24

This page shows results for the PX13 line based on monitoring by the CAP PASADO and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
335	69128	-0.10	0.68	6.55	-6.87

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	5431	-0.12	0.51	2.60	-3.18
50-100	5395	-0.12	0.73	3.74	-3.74
100-150	5370	-0.22	1.12	6.55	-4.96
150-200	5334	-0.56	1.38	3.78	-6.87
200-250	5323	-0.27	0.80	2.80	-3.97
250-300	5277	-0.08	0.41	2.76	-1.78
300-350	5252	-0.02	0.31	1.53	-1.23
350-400	5239	-0.00	0.32	2.31	-1.07
400-450	5225	0.00	0.34	2.75	-0.87
450-500	5222	0.02	0.35	3.08	-0.84
500-550	2068	0.03	0.34	3.56	-0.67
550-600	2059	0.05	0.35	4.08	-0.47
600-650	2042	0.04	0.37	4.44	-0.50
650-700	2040	0.04	0.38	4.73	-0.44
700-750	2040	0.04	0.41	5.06	-0.42
750-800	2029	0.05	0.43	5.23	-0.43
800-850	2020	0.04	0.44	5.38	-0.39
850-900	1680	0.04	0.41	5.48	-0.40
900-950	82	0.08	0.17	0.66	-0.25
950-1000	0	-	-	-	-

Results of QC

A total of 335 profiles (152609 data, reported by BATHY or TESAC) were received from the CAP PASADO.
The results of JMA quality control are as follows.

Grounded test

Error data: 1370 of 152609

Position on land test

On land: 0 of 335

Invalid position: 0 of 335

Regional range test

Error data (low): 0 of 152609

Error data (high): 181 of 152609

Gradient test

Error data: 8 of 152609

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

Summary of QC

QC detected some unnatural profiles shown in 'Results of QC'.
Among the data that passed QC, some "hitting bottom" data are found in the seas near the west coast of the United States (Refer to concerned figures). The topography used our grounded test is too rough to catch the error.
There were large differences at depths of between 50 and 250 m in the south of 10°N. The observation data shows sharper thermocline better than the assimilation data.

Figures

◊Station map	◊Vertical temperature profile Vertical profile of temperature along the observing line of PX13 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