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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 : 2020/3/22 to 2020/3/25

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	3290	0.12	0.56	3.41	-1.57

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	325	-0.11	0.34	0.69	-1.07
50-100	325	0.31	0.50	1.69	-1.25
100-150	325	0.27	0.98	3.41	-1.52
150-200	293	0.30	0.63	1.40	-1.57
200-250	275	0.18	0.44	1.02	-0.63
250-300	275	0.12	0.54	1.32	-1.11
300-350	265	0.06	0.65	1.24	-1.25
350-400	247	0.02	0.51	1.10	-1.03
400-450	223	-0.04	0.48	0.91	-0.88
450-500	200	-0.01	0.37	0.89	-0.83
500-550	80	-0.03	0.18	0.42	-0.46
550-600	80	0.01	0.14	0.31	-0.24
600-650	74	0.06	0.17	0.35	-0.25
650-700	61	0.13	0.21	0.48	-0.15
700-750	60	0.17	0.23	0.57	-0.13
750-800	60	0.18	0.23	0.59	-0.12
800-850	60	0.21	0.21	0.56	-0.13
850-900	52	0.28	0.23	0.65	-0.13
900-950	10	0.35	0.12	0.67	0.24
950-1000	0	-	-	-	-

Results of QC

A total of 13 profiles (439 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 439

Position on land test

On land: 0 of 13

Invalid position: 0 of 13

Regional range test

Error data (low): 0 of 439

Error data (high): 0 of 439

Gradient test

Error data: 0 of 439

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

Summary of QC

QC detected no unnatural profiles.
At depths of about 140 m in the seas around 2°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