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Error budget

On hydrology products

 CoverageModeHeight precisionOther errors/accuracies
Hydrology products: river by nodesGlobal inventory of rivers > 100 m (goal: 50 m)High Rate (HR) modeWater surface height precision < 10 cm (after averaging over 1 km2)
Slope precision < 1.7 cm/km (after averaging over 10 km)
Relative error of water mask < 15% (goal: 25 %))
Flagging of rain, topographic layover, frozen surface water (accuracy > 68%)
Hydrology products: rivers by reachesGlobal inventory of rivers > 100 m (goal: 50 m)High Rate (HR) modeWater surface height precision < 10 cm (after averaging over 1 km2)
Slope precision < 1.7 cm/km (after averaging over 10 km)
Relative error of water mask < 15% (goal: 25 %)
Flagging of rain, topographic layover, frozen surface water (accuracy > 68%)
Hydrology products: lakesGlobal inventory of lakes, reservoirs and wetlands > 250x250 m2 (goal: 100x100 m2)High Rate (HR) modeWater surface height precision < 10 cm (after averaging over 1 km2)Relative error of water mask < 15% (goal: 25 %))
Flagging of rain, topographic layover, frozen surface water (accuracy > 68%)
Hydrology products: "raster"High Rate mask (100 or 250 m sampling)High Rate (HR) modeWater surface height precision < 10 cm (after averaging over 1 km2)Relative error of water mask < 15% (goal: 25 %))
Flagging of rain, topographic layover, frozen surface water (accuracy > 68%)
Hydrology products: pixel cloudHigh Rate mask (20 m average sampling)High Rate (HR) modeWater surface height precision < 10 cm (after averaging over 1 km2)Relative error of water mask < 15% (goal: 25 %))
Flagging of rain, topographic layover, frozen surface water (accuracy > 68%)

 

On ocean products

 CoverageModeHeight precisionOther errors/accuracies
Ocean products : "Basic" SSHGlobal coverage (<78°), geographically fixed grid, 2x2 km pixel posting and resolutionLow Rate (LR) modeSea surface height precision < 1.2 cm (integrating over ocean wavelengths between 15 km and 1000 km)The product also contains measurement and uncertainty estimates for significant wave height and wind speed.
Flagging of rain, sea ice (accuracy > 68%)
Ocean products : "Unsmoothed" SSHGlobal coverage (<78°), 250x250 m posting, 500x500 m resolutionLow Rate (LR) modeSea surface height precision < 1.2 cm (integrating over ocean wavelengths between 15 km and 1000 km)The product also contains measurement and uncertainty estimates for significant wave height and wind speed.
Flagging of rain, sea ice (accuracy > 68%)

 

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