Discriminated Surface Type Monitoring
Surface type discriminated by analysis of the waveform and auxiliary data (the discrimination result), as bits of a flag word: the LRM and SARin classes, and the SAR sea ice discriminator classes, which are also used over ocean in SARin mode. Statistics are the percentage of records with each class bit set.
Baseline-F, cycle 194: 25-Aug-2026 to 23-Sep-2026 · 7,022 L2I files · data covers 17.9 of 30 days Partial cycle processed 12-Oct-2026 01:11 UTC
Discriminated Surface Type: Sea ice discrimination: sea ice, All modes: Maps
Discriminated Surface Type: % of Records with each Surface class Set, Cycle 194, Global
| Surface class | Product flag | All modes | LRM | SAR | SARin |
|---|---|---|---|---|---|
| LRM ocean | lrm_ocean | 46.93 | 69.61 | 0 | 0 |
| LRM land ice | lrm_land_ice | 20.49 | 30.39 | 0 | 0 |
| LRM undefined | lrm_undefined | 0 | 0 | 0 | 0 |
| SARin valid | sarin_valid | 13.35 | 0 | 0 | 97.76 |
| SARin undefined | sarin_undefined | 0.31 | 0 | 0 | 2.24 |
| Sea ice discrimination: ocean | sar_ocean | 8.93 | 0 | 32.97 | 19.74 |
| Sea ice discrimination: sea ice | sar_sea_ice | 2.05 | 0 | 8.59 | 3.13 |
| Sea ice discrimination: lead | sar_lead | 4.16 | 0 | 17.53 | 6.21 |
| Sea ice discrimination: undefined | sar_undefined | 17.43 | 0 | 40.91 | 70.93 |
Percentage of the valid records in each acquisition mode with the bit set. Select a bit to show its maps, statistics and trends, and an area above to show this table for it.
Discriminated Surface Type: Sea ice discrimination: sea ice, All modes: Cycle 194 Statistics
| Area | Records | Valid | Not set % | Set % | Other |
|---|---|---|---|---|---|
| Global | 32,922,897 | 32,922,897 (100.0%) | 97.95 | 2.05 | 0 |
| North Polar (>60N) | 5,627,894 | 5,627,894 (100.0%) | 97.88 | 2.12 | 0 |
| South Polar (<60S) | 5,553,821 | 5,553,821 (100.0%) | 90.30 | 9.70 | 0 |
Statistics use every 20 Hz measurement of the cycle within each area. Flag percentages are of the valid (non-fill) values.
Discriminated Surface Type: Sea ice discrimination: sea ice, All modes: Trends
Click a point to show that cycle.
