KEIFU-MARU(JPBN), PX46
Observation period : 2012/6/25 to 2012/7/17

This page shows results for the PX46 line based on monitoring by the KEIFU-MARU and comparison with the result of assimilation by MOVE-NP.

Overall statistics

Number of profilesNumber of levelsAVERMSDMAXDMIND
39133380.020.582.80-3.77

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 levelsAVERMSDMAXDMIND
0-50950-0.080.541.36-1.63
50-100950-0.270.852.28-3.77
100-150950-0.131.132.80-3.38
150-200950-0.150.822.01-2.34
200-2509500.010.621.92-1.67
250-3009500.010.491.15-1.33
300-3509500.040.411.01-1.01
350-4009500.090.351.02-0.64
400-4509500.100.391.38-0.65
450-5003800.160.401.48-0.55
500-5503800.190.401.57-0.30
550-6003800.150.321.36-0.23
600-6503800.100.261.04-0.45
650-7003800.080.190.63-0.43
700-7503800.110.160.53-0.28
750-8003800.140.140.45-0.20
800-8503800.150.120.42-0.12
850-9003800.140.110.39-0.08
900-9503800.110.100.33-0.10
950-1000380.090.090.30-0.10


Results of QC

A total of 39(887 levels, reported by BATHY or TESAC) were received from the KEIFU-MARU.
The results of JMA quality control are as follows.
  • Grounded test

    • Error data: 0 of 887

  • Position on land test

    • On land: 0 of 39

    Invalid position: 0 of 39

  • Regional range test

    • Error data (low): 0 of 887

    Error data (high): 0 of 887

  • Gradient test

    • Error data: 0 of 887

For datails 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 was no significant bias in comparison with the results of assimilation by JMA.
  • There were differences above 2°C between observation data and the results of assimilation at a depth of around 150 m in the seas south of 10°N .


Figures

◊Station map ◊Vertical temperature profile

Vertical profile of temperature along the observing line of PX46 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)