RYOFU MARU III(JGQH), PX45
Observation period : 2018/1/12 to 2018/1/23

This page shows results for the PX45 line based on monitoring by the RYOFU MARU III and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profilesNumber of dataAVERMSDMAXDMIND
4013931-0.190.662.68-3.39

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 rangeNumber of dataAVERMSDMAXDMIND
0-5010000.100.511.90-1.49
50-1001000-0.210.711.37-3.26
100-1501000-0.630.982.43-3.39
150-2001000-0.300.922.68-2.98
200-2501000-0.190.711.88-2.64
250-3001000-0.240.721.92-2.39
300-3501000-0.240.752.00-2.65
350-4001000-0.210.682.40-2.18
400-4501000-0.190.632.42-1.81
450-500992-0.190.552.15-1.65
500-550390-0.190.501.83-1.25
550-600390-0.190.421.44-1.24
600-650390-0.190.411.29-1.18
650-700390-0.120.351.03-1.03
700-750390-0.080.320.64-0.92
750-800390-0.050.310.80-0.85
800-850390-0.030.280.48-0.77
850-900390-0.020.260.42-0.70
900-950390-0.030.240.43-0.64
950-1000390-0.050.210.41-0.55


Results of QC

A total of 40 profiles (871 data, reported by BATHY or TESAC) were received from the RYOFU MARU III.
The results of JMA quality control are as follows.
  • Grounded test

    • Error data: 0 of 871

  • Position on land test

    • On land: 0 of 40

    Invalid position: 0 of 40

  • Regional range test

    • Error data (low): 0 of 871

    Error data (high): 0 of 871

  • Gradient test

    • Error data: 0 of 871

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


Summary of QC

  • QC detected no unnatural profiles.
  • There were differences above 2°C between observation data and the results of assimilation at a depth of between 50 and 200m in the seas south of 10°N.
  • There were large differences between observation data and the results of assimilation in areas near the Kuroshio front (around 32°N).


Figures

◊Station map ◊Vertical temperature profile

Vertical profile of temperature along the observing line of PX45 moved the entire profile by 5 degree Celsius.
station map water fall
◊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.
observation scatter plot (summary of all station)
◊Vertical sections for the result of assimilation by MOVE-NP ◊Distribution of differences (Obs. - Assim.) by depth
result of assimilation scatter plot(depth bases)
◊Vertical sections of differences (Obs. - Assim.) ◊Distribution of differences (Obs. - Assim.) by temperature
differences (Obs. - Assim.) scatter plot (tempereture basis)