CryoSat Performance Monitoring - UCL

Surface Type Monitoring

Source: L2 GDR-A (all acquisition modes) · Variable: surf_type_20_ku

Four-state surface type mask at the measurement location, computed by combining data from GMT, GlobCover, the MODIS Mosaic of Antarctica and water body outlines from LEGOS.

Area
All areas Global North Polar (>60N) South Polar (<60S)

Baseline-F, cycle 194: 25-Aug-2026 to 23-Sep-2026 · 321 GDR-A files · data covers 22.1 of 30 days Partial cycle processed 15-Oct-2026 01:17 UTC

Surface Type: Maps

Global Single map
Map of Surface Type. Global, Baseline-F, cycle 194
North Polar (>60N) Single map
Map of Surface Type. North Polar (>60N), Baseline-F, cycle 194
South Polar (<60S) Single map
Map of Surface Type. South Polar (<60S), Baseline-F, cycle 194

Surface Type: Cycle 194 Statistics

Area Records Valid Ocean % Lake/Enclosed Sea % Ice % Land % Other
Global 40,279,890 40,279,890 (100.0%) 67.52 1.00 10.93 20.55 0
North Polar (>60N) 6,892,871 6,892,871 (100.0%) 65.02 1.66 8.39 24.93 0
South Polar (<60S) 6,809,604 6,809,604 (100.0%) 44.53 0.00 55.47 0.00 0

Statistics use every 20 Hz measurement of the cycle within each area. Flag percentages are of the valid (non-fill) values.

Surface Type: Trends

Baselines:
Baseline-F statistics (CSV)

Click a point to show that cycle.

Surface Type: All Cycles from Baseline-F

Cycle Timespan Coverage (days) GlobalNorth Polar (>60N)South Polar (<60S)
194 25-Aug-2026 to 23-Sep-2026 22.1 partial Global map, cycle 194 North Polar (>60N) map, cycle 194 South Polar (<60S) map, cycle 194
193 26-Jul-2026 to 24-Aug-2026 30.0 Global map, cycle 193 North Polar (>60N) map, cycle 193 South Polar (<60S) map, cycle 193
192 26-Jun-2026 to 25-Jul-2026 22.0 partial Global map, cycle 192 North Polar (>60N) map, cycle 192 South Polar (<60S) map, cycle 192