GTSPP Data Product CentreGTSPP Data Product Centre
GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency
Jpo Scorpios(A8KC6), PX13
Observation period : 2012/5/20 to 2012/6/6
Observation period : 2012/5/20 to 2012/6/6
This page shows results for the PX13 line based on monitoring by the Jpo Scorpios and comparison with the result of assimilation by MOVE-NP.
Overall statistics
| Number of profiles | Number of levels | AVE | RMSD | MAXD | MIND |
|---|---|---|---|---|---|
| 295 | 52509 | 0.03 | 0.69 | 6.04 | -7.55 |
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 levels | AVE | RMSD | MAXD | MIND |
|---|---|---|---|---|---|
| 0-50 | 3975 | 0.14 | 0.76 | 4.53 | -5.18 |
| 50-100 | 3975 | -0.28 | 1.56 | 6.04 | -7.55 |
| 100-150 | 3975 | -0.24 | 1.27 | 3.53 | -6.85 |
| 150-200 | 3975 | 0.01 | 0.75 | 2.86 | -2.82 |
| 200-250 | 3975 | 0.07 | 0.36 | 1.76 | -1.65 |
| 250-300 | 3975 | 0.10 | 0.31 | 1.37 | -0.87 |
| 300-350 | 3950 | 0.11 | 0.34 | 1.61 | -0.88 |
| 350-400 | 3950 | 0.08 | 0.38 | 1.77 | -0.84 |
| 400-450 | 3950 | 0.10 | 0.34 | 1.79 | -0.61 |
| 450-500 | 1580 | 0.10 | 0.30 | 1.61 | -0.55 |
| 500-550 | 1580 | 0.09 | 0.27 | 1.57 | -0.51 |
| 550-600 | 1580 | 0.10 | 0.22 | 1.17 | -0.64 |
| 600-650 | 1580 | 0.11 | 0.19 | 0.83 | -0.65 |
| 650-700 | 1580 | 0.12 | 0.18 | 1.09 | -0.56 |
| 700-750 | 1580 | 0.13 | 0.18 | 1.33 | -0.47 |
| 750-800 | 1580 | 0.13 | 0.19 | 1.80 | -0.43 |
| 800-850 | 1455 | 0.14 | 0.21 | 2.10 | -0.43 |
| 850-900 | 225 | 0.22 | 0.22 | 1.17 | -0.30 |
| 900-950 | 20 | 0.89 | 0.38 | 1.34 | 0.42 |
| 950-1000 | 2 | 0.97 | 0.39 | 1.35 | 0.58 |
Results of QC
A total of 295(129368 levels, reported by BATHY or TESAC) were received from the Jpo Scorpios.
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 129368
On land: 0 of 295
Invalid position: 0 of 295
Error data (low): 0 of 129368
Error data (high): 207 of 129368
Error data: 13 of 129368
For datails of JMA's quality control procedures, please refer to this page.
Summary of QC
- Some erroneous profiles are detected by JMA's automated quality control procedures. These are checked by the regional range test and the gradient test, but the true cause will be, "hitting bottom" or "exceeding the guaranteed depth of observation" of XBT.
- The observation data has deeper mixed layer and sharper thermocline than the assimilation data in the seas south from 15°N.
- With the exception of the above errors and differences, 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 PX13 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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