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EPMs used to evaluate REASON requirements on measurement quality
| EPM | Measurements | Datasets | Altitudes |
|---|---|---|---|
| Shallow Subsurface Structure | Sounding | Shallow Subsurface | ≤400 km |
| Full Depth Subsurface Exchange | Sounding | Full Depth Subsurface Exchange | ≤400 km |
| Ice Shell Properties | Sounding | Ice–Ocean Interface | ≤400 km (VHF) |
| ≤1000 km (HF) | |||
| Altimetry and Reflectometry | Altimetry and Reflectometry | Shallow Subsurface | ≤400 km |
| Full Depth Subsurface Exchange | |||
| Near-Surface Properties | |||
| Ice–Ocean Interface | ≤1000 km |
