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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 : 2019/1/19 to 2019/1/22

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
12	3300	-0.20	0.87	2.64	-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	300	-0.27	0.38	0.23	-2.08
50-100	291	-0.66	1.14	1.56	-3.54
100-150	275	-0.31	1.19	1.26	-3.30
150-200	275	-0.22	1.07	2.64	-2.13
200-250	275	-0.43	1.31	2.18	-3.93
250-300	275	-0.25	1.04	0.85	-3.77
300-350	275	-0.03	0.75	0.85	-2.51
350-400	263	0.04	0.71	1.46	-1.95
400-450	226	-0.04	0.55	1.49	-1.45
450-500	225	-0.12	0.44	0.59	-1.20
500-550	90	-0.08	0.44	0.71	-0.83
550-600	90	-0.06	0.37	0.75	-0.58
600-650	90	-0.04	0.34	0.74	-0.67
650-700	90	-0.03	0.36	0.83	-0.78
700-750	87	0.03	0.24	0.66	-0.57
750-800	80	0.04	0.25	0.47	-0.44
800-850	72	0.08	0.23	0.57	-0.25
850-900	20	-0.03	0.13	0.25	-0.16
900-950	1	0.03	0.00	0.03	0.03
950-1000	0	-	-	-	-

Results of QC

A total of 12 profiles (402 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 402

Position on land test

On land: 0 of 12

Invalid position: 0 of 12

Regional range test

Error data (low): 0 of 402

Error data (high): 0 of 402

Gradient test

Error data: 0 of 402

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

Summary of QC

QC detected no unnatural profiles.
At depths of between 50 and 350 m in areas south of 5°N, there were differences above 2°C between observation data and the results of assimilation. The observation data showed sharper thermocline than 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