GTSPP Data Product CentreGTSPP Data Product Centre
GTSPP Data Product Centre for the North Pacific Region hosted by the Japan Meteorological Agency
KEIFU-MARU(JPBN), PX45
Observation period : 2012/7/25 to 2012/8/14
Observation period : 2012/7/25 to 2012/8/14
This page shows results for the PX45 line based on monitoring by the KEIFU-MARU and comparison with the result of assimilation by MOVE-NP.
Overall statistics
| Number of profiles | Number of levels | AVE | RMSD | MAXD | MIND |
|---|---|---|---|---|---|
| 41 | 13733 | -0.09 | 0.70 | 2.92 | -4.46 |
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 | 994 | -0.27 | 0.82 | 1.71 | -3.47 |
| 50-100 | 975 | -0.63 | 0.91 | 1.65 | -4.46 |
| 100-150 | 975 | -0.49 | 1.01 | 2.58 | -3.80 |
| 150-200 | 975 | -0.13 | 0.82 | 2.40 | -2.60 |
| 200-250 | 975 | -0.06 | 0.59 | 1.38 | -1.83 |
| 250-300 | 975 | -0.04 | 0.56 | 1.61 | -1.45 |
| 300-350 | 975 | 0.00 | 0.62 | 2.12 | -1.25 |
| 350-400 | 975 | 0.08 | 0.64 | 2.14 | -1.38 |
| 400-450 | 975 | 0.08 | 0.65 | 1.84 | -1.74 |
| 450-500 | 390 | 0.07 | 0.63 | 1.59 | -1.85 |
| 500-550 | 390 | 0.08 | 0.58 | 1.62 | -1.80 |
| 550-600 | 390 | 0.07 | 0.50 | 1.72 | -1.51 |
| 600-650 | 390 | 0.05 | 0.40 | 1.13 | -1.10 |
| 650-700 | 390 | 0.06 | 0.33 | 0.98 | -0.73 |
| 700-750 | 390 | 0.03 | 0.26 | 0.81 | -0.59 |
| 750-800 | 390 | 0.04 | 0.22 | 0.69 | -0.51 |
| 800-850 | 390 | 0.06 | 0.21 | 0.74 | -0.36 |
| 850-900 | 390 | 0.09 | 0.20 | 0.75 | -0.28 |
| 900-950 | 390 | 0.06 | 0.17 | 0.69 | -0.23 |
| 950-1000 | 39 | 0.04 | 0.16 | 0.58 | -0.18 |
Results of QC
A total of 41(942 levels, reported by BATHY or TESAC) were received from the KEIFU-MARU.
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 942
On land: 0 of 41
Invalid position: 0 of 41
Error data (low): 0 of 942
Error data (high): 0 of 942
Error data: 0 of 942
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 .
- Temperatures calculated by JMA’s assimilation model are higher than those of observation in areas north of the Kuroshio front (around 33°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. |
 |
 |
| ◊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. |
 |
 |
| ◊Vertical sections for the result of assimilation by MOVE-NP | ◊Distribution of differences (Obs. - Assim.) by depth |
 |
 |
| ◊Vertical sections of differences (Obs. - Assim.) | ◊Distribution of differences (Obs. - Assim.) by temperature |
 |
 |