SRAL

SAR Radar Altimeter

Satellites

Sentinel-3 A and B

Status

Being developed – To be utilised in the period 2012 to ~ 2022

Mission

Ocean and ice topography, significant wave height, wind speed on sea surface

Instrument type

Dual-frequency radar altimeter (5.3 and 13.58 GHz); SAR capability along-track for high spatial resolution

Scanning technique

No scanning. SAR mode possible to be activated, depending on the target area

Coverage/cycle

Global coverage in 1 month for 30 km average spacing, or in 10 days for 100 km average spacing

Resolution

20 km IFOV. When used in SAR mode, the along-track resolution is 300 m

Resources

Mass: … kg - Power: … W - Data rate: … kbps, … Mbps (SAR)