GTSPP Data Product Centre

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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Ship Observations Team (SOT)

NORTHWEST SANDPIPER(VNVG), PX11
Observation period : 2021/2/7 to 2021/2/14

This page shows results for the PX11 line based on monitoring by the NORTHWEST SANDPIPER and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profiles	Number of data	AVE	RMSD	MAXD	MIND
25	4376	0.06	0.82	3.35	-3.87

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	425	0.11	0.35	0.92	-0.86
50-100	425	-0.08	0.84	2.82	-2.01
100-150	395	-0.08	1.46	3.35	-3.87
150-200	351	-0.01	1.39	2.29	-3.84
200-250	350	-0.08	1.23	1.57	-3.74
250-300	330	0.05	0.87	1.74	-2.29
300-350	300	0.22	0.57	1.54	-1.20
350-400	300	0.22	0.28	0.99	-0.48
400-450	300	0.17	0.28	0.75	-0.41
450-500	300	0.17	0.25	0.64	-0.32
500-550	120	0.13	0.22	0.63	-0.23
550-600	120	0.05	0.22	0.52	-0.36
600-650	120	0.08	0.17	0.55	-0.25
650-700	120	0.07	0.19	0.44	-0.26
700-750	120	0.08	0.25	0.54	-0.42
750-800	120	0.08	0.29	0.52	-0.50
800-850	115	0.08	0.27	0.55	-0.39
850-900	65	0.06	0.24	0.57	-0.32
900-950	0	-	-	-	-
950-1000	0	-	-	-	-

Results of QC

A total of 25 profiles (827 data, reported by BATHY or TESAC) were received from the NORTHWEST SANDPIPER.
The results of JMA quality control are as follows.

Grounded test

Error data: 0 of 827

Position on land test

On land: 0 of 25

Invalid position: 0 of 25

Regional range test

Error data (low): 0 of 827

Error data (high): 0 of 827

Gradient test

Error data: 0 of 827

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 100 and 260 m in areas south of 4°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