Surface Height Monitoring
Surface height above the WGS84 ellipsoid of each 20 Hz measurement for each L2 retracker, at the estimated echo location (POCA), with instrumental and geophysical corrections and system bias applied. Corrected for surface slope with a slope model in LRM and SARin degraded modes, and with the SARin phase information in SARin mode. Retrackers 2 and 3 are only used in LRM mode.
| Retracker | LRM | SAR | SARin |
|---|---|---|---|
| Retracker 1 height_1_20_ku | Ocean CFI retracker | UCL sea-ice retracker | UCL margins retracker |
| Retracker 2 height_2_20_ku | UCL land-ice retracker | N/A (not used) | N/A (not used) |
| Retracker 3 height_3_20_ku | OCOG retracker | N/A (not used) | N/A (not used) |
Baseline-F, cycle 194: 25-Aug-2026 to 23-Sep-2026 · 263 GDR-A files · data covers 18.1 of 30 days Partial cycle processed 11-Oct-2026 01:13 UTC
Surface Height: Retracker 1, All modes: Maps (Land and ocean colour scale)
Surface Height: Retracker 1, All modes: Cycle 194 Statistics
| Area | Records | Valid | Mean (m) | Median (m) | Std Dev (m) | RMS (m) | Min (m) | Max (m) |
|---|---|---|---|---|---|---|---|---|
| Global | 32,941,951 | 32,941,951 (100.0%) | 365.91 | 17.19 | 865.70 | 939.86 | -498.61 | 11,980.27 |
| North Polar (>60N) | 5,641,763 | 5,641,763 (100.0%) | 211.31 | 17.29 | 531.18 | 571.67 | -191.28 | 6,858.27 |
| South Polar (<60S) | 5,553,821 | 5,553,821 (100.0%) | 1,288.26 | 816.40 | 1,364.37 | 1,876.47 | -187.73 | 7,330.82 |
Statistics use every 20 Hz measurement of the cycle within each area. Std Dev is the population standard deviation, RMS the root mean square.
Surface Height: Retracker 1, All modes: Trends
Click a point to show that cycle.
