RYOFU MARU III(JGQH), PX45
Observation period : 2016/1/9 to 2016/1/21

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
4114282-0.140.652.18-3.89

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
0-501025-0.210.610.82-3.89
50-1001025-0.550.950.92-3.54
100-1501025-0.620.800.98-3.29
150-2001025-0.350.762.18-2.50
200-2501025-0.220.621.38-1.56
250-3001025-0.090.621.71-1.54
300-35010250.040.641.76-2.29
350-40010250.040.611.50-2.16
400-45010250.010.541.17-1.88
450-5001017-0.010.521.04-1.58
500-550400-0.040.541.46-1.28
550-600400-0.040.561.90-1.09
600-650400-0.040.511.90-1.02
650-700400-0.040.461.79-1.07
700-750400-0.020.361.58-0.93
750-800400-0.010.271.21-0.60
800-8504000.020.210.81-0.48
850-9004000.070.190.77-0.29
900-9504000.100.200.92-0.22
950-10004000.080.201.05-0.23


Results of QC

A total of 41 profiles (909 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 909

  • Position on land test

    • On land: 0 of 41

    Invalid position: 0 of 41

  • Regional range test

    • Error data (low): 0 of 909

    Error data (high): 0 of 909

  • Gradient test

    • Error data: 0 of 909

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


Summary of QC

  • No errors were detected with JMA's quality control procedures.
  • There were differences above 2°C between observation data and the results of assimilation at a depth of around 100 m in the seas south of 7°N .
  • There were large differences between observation data and the results of assimilation in areas near the Kuroshio front (around 33°N).
  • There was no significant bias in comparison with the results of assimilation by JMA.


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)