GTSPP Data Product CentreGTSPP Data Product Centre
GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency
RYOFU MARU III(JGQH), PX45
Observation period : 2016/7/4 to 2016/8/4
Observation period : 2016/7/4 to 2016/8/4
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 profiles | Number of data | AVE | RMSD | MAXD | MIND |
|---|---|---|---|---|---|
| 74 | 25865 | -0.27 | 0.85 | 2.69 | -6.24 |
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 | 1850 | -0.05 | 0.67 | 2.03 | -2.86 |
| 50-100 | 1850 | -0.61 | 1.15 | 2.01 | -6.24 |
| 100-150 | 1850 | -0.93 | 1.62 | 2.69 | -6.18 |
| 150-200 | 1850 | -1.02 | 1.32 | 1.65 | -5.20 |
| 200-250 | 1850 | -0.53 | 0.82 | 1.45 | -3.29 |
| 250-300 | 1850 | -0.22 | 0.64 | 1.95 | -2.22 |
| 300-350 | 1850 | -0.11 | 0.53 | 1.95 | -1.72 |
| 350-400 | 1850 | -0.07 | 0.47 | 1.99 | -1.63 |
| 400-450 | 1850 | -0.05 | 0.45 | 1.99 | -1.30 |
| 450-500 | 1842 | -0.02 | 0.44 | 1.72 | -0.95 |
| 500-550 | 730 | -0.04 | 0.41 | 1.66 | -0.95 |
| 550-600 | 730 | -0.08 | 0.37 | 1.62 | -0.91 |
| 600-650 | 730 | -0.11 | 0.34 | 1.20 | -0.97 |
| 650-700 | 730 | -0.11 | 0.30 | 0.87 | -0.93 |
| 700-750 | 730 | -0.07 | 0.27 | 0.84 | -0.67 |
| 750-800 | 730 | -0.02 | 0.24 | 0.84 | -0.70 |
| 800-850 | 730 | 0.03 | 0.20 | 0.61 | -0.46 |
| 850-900 | 730 | 0.05 | 0.18 | 0.49 | -0.32 |
| 900-950 | 730 | 0.06 | 0.16 | 0.49 | -0.26 |
| 950-1000 | 730 | 0.05 | 0.14 | 0.40 | -0.29 |
Results of QC
A total of 74 profiles (1703 data, reported by BATHY or TESAC) were received from the RYOFU MARU III.
The results of JMA quality control are as follows.
The results of JMA quality control are as follows.
- Grounded test
- Position on land test
- Regional range test
- Gradient test
Error data: 0 of 1703
On land: 0 of 74
Invalid position: 0 of 74
Error data (low): 0 of 1703
Error data (high): 0 of 1703
Error data: 0 of 1703
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 between 50 and 250m in the seas between 5°N and 12°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. |
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| ◊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. |
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| ◊Vertical sections for the result of assimilation by MOVE-NP | ◊Distribution of differences (Obs. - Assim.) by depth |
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| ◊Vertical sections of differences (Obs. - Assim.) | ◊Distribution of differences (Obs. - Assim.) by temperature |
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