| Observing Platform | Observation Type | Average Frequency of Data (varies by individual platform ID and data type) | Temporal/Geographical Coverage (each dot represents a 3° box containing one or more observations) |
| Automated Gauge | Surface- Surface marine tide gauge reports
| - 1 to 3 per hour
- 1 to 20 per day
- 4 to 6 per week
| 2003-12-31 to 2008-10-04
 |
| CMAN Station | Surface- Surface marine CMAN-platform reports
| - 1 to 16 per hour
- 1 to 20 per day
- 3 per week
| 2000-03-30 to 2008-10-04
 |
| Drifting Buoy | Surface- Surface marine drifting buoy reports
| - 1 to 5 per hour
- 1 to 20 per day
- 4 to 6 per week
| 2000-03-30 to 2008-10-04
 |
| Land Station | Surface- Surface synoptic fixed land reports
- Surface radionuclide particulate reports
- Surface ASOS (METAR) land reports
| - 1 to 7 per hour
- 1 to 20 per day
- 2 to 6 per week
| 2000-03-30 to 2008-10-04
 |
| Moored Buoy | Surface- Surface marine fixed buoy reports
| - 1 to 10 per hour
- 1 to 20 per day
- 3 to 6 per week
| 2000-03-30 to 2008-10-04
 |
| Roving Ship | Surface- Surface marine ship reports
| - 1 to 18 per hour
- 1 to 20 per day
- 2 to 6 per week
| 2000-03-30 to 2008-06-30
 |