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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)

HORIZON ENTERPRISE(KRGB), PX37
Observation period : 2019/8/2 to 2019/8/7

This page shows results for the PX37 line based on monitoring by the HORIZON ENTERPRISE and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
83	25978	0.05	0.56	3.24	-27.44

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	2004	-0.24	1.15	2.12	-27.44
50-100	2000	-0.17	0.78	2.29	-2.35
100-150	2000	0.23	0.66	2.55	-1.64
150-200	2000	0.11	0.70	3.24	-1.34
200-250	2000	0.19	0.62	3.12	-1.06
250-300	2000	0.14	0.44	1.89	-1.14
300-350	2000	0.08	0.36	1.57	-0.80
350-400	2000	0.09	0.33	1.53	-0.63
400-450	2000	0.08	0.32	1.52	-0.63
450-500	1987	0.05	0.27	1.42	-0.47
500-550	790	0.03	0.26	1.60	-0.46
550-600	780	0.00	0.19	0.87	-0.57
600-650	780	0.01	0.18	0.78	-0.54
650-700	780	0.01	0.16	0.59	-0.44
700-750	780	0.02	0.15	0.46	-0.33
750-800	773	0.03	0.14	0.52	-0.31
800-850	760	0.03	0.12	0.37	-0.33
850-900	541	0.04	0.12	0.35	-0.30
900-950	3	0.10	0.02	0.12	0.08
950-1000	0	-	-	-	-

Results of QC

A total of 83 profiles (70692 data, reported by BATHY or TESAC) were received from the HORIZON ENTERPRISE.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 70692

Position on land test

On land: 0 of 83

Invalid position: 0 of 83

Regional range test

Error data (low): 0 of 70692

Error data (high): 0 of 70692

Gradient test

Error data: 20 of 70692

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'.
At depths of around 50 m in areas east of 130°W and depths of between 100 and 300 m in areas around 146°W and 148°W, 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 PX37 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