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GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency

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The last 30 days SOOP observation

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100m TS by NPR-4DVAR

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Ship Observations Team (SOT)

ANL WARRNAMBOOL(9HA5535), PX13
Observation period : 2023/6/7 to 2023/6/25

This page shows results for the PX13 line based on monitoring by the ANL WARRNAMBOOL and comparison with the result of assimilation by NPR-4DVAR.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
250	14911	0.02	0.52	2.15	-22.33

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	1130	0.13	1.37	1.70	-22.33
50-100	1125	-0.00	0.54	1.41	-2.12
100-150	1125	-0.11	0.62	1.61	-1.84
150-200	1125	-0.07	0.57	2.15	-1.71
200-250	1125	-0.03	0.31	0.75	-1.03
250-300	1125	0.01	0.28	0.74	-0.83
300-350	1125	0.06	0.28	0.78	-0.86
350-400	1125	0.03	0.29	0.88	-0.84
400-450	1125	0.01	0.29	0.89	-0.82
450-500	1125	0.03	0.27	0.97	-0.71
500-550	450	0.04	0.27	1.08	-0.67
550-600	450	0.06	0.27	1.28	-0.55
600-650	450	0.07	0.24	1.27	-0.43
650-700	441	0.06	0.15	1.18	-0.40
700-750	440	0.06	0.12	0.34	-0.36
750-800	440	0.05	0.10	0.32	-0.25
800-850	440	0.05	0.09	0.30	-0.24
850-900	438	0.04	0.09	0.29	-0.30
900-950	107	0.10	0.12	0.34	-0.28
950-1000	0	-	-	-	-

Results of QC

A total of 250 profiles (190624 data, reported by BATHY or TESAC) were received from the ANL WARRNAMBOOL.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 190624

Position on land test

On land: 0 of 250

Invalid position: 0 of 250

Regional range test

Error data (low): 0 of 190624

Error data (high): 0 of 190624

Gradient test

Error data: 78 of 190624

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 the depths between 80 m and 100 m in the seas around 10°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 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 NPR-4DVAR	◊Distribution of differences (Obs. - Assim.) by depth

◊Vertical sections of differences (Obs. - Assim.)	◊Distribution of differences (Obs. - Assim.) by temperature