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Figures 1-9 are global charts for each data type showing the
average number of observations received in 24 hours in 5 degree
boxes. The average daily number of observations (global) is also
displayed with a breakdown, where appropriate, for each WMO region
(figures 1, 3 and 4) and Ocean (figures 1-4).
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| Fig |
Observation Type |
Parameter |
Level/Layer |
|
|
|
| 1 |
SYNOP/SHIP |
MSL Pressure |
Surface |
| 2 |
DRIFTER |
MSL Pressure |
Surface |
| 3 |
TEMP |
Geopotential |
500 hPa |
| 4 |
TEMP/PILOT |
Wind |
300 hPa |
| 5 |
AIRCRAFT (AIREP/AMDAR etc.) |
Wind |
300-150 hPa |
| 6 |
SATOB |
Wind |
400-150 hPa |
| 7 |
SATOB |
Wind |
1000-700 hPa |
| 9 |
TOVS (120 km) - NOAA14 |
Thickness |
300-100 hPa |
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|
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(Figure 1 includes data from fixed marine platforms e.g. moored buoys.)
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