BackForwardInstrument:  SHIOSAI 

Instrument details
Acronym SHIOSAI
Full name SAR Height Imaging Oceanic Sensor with Advanced Interferometry
Purpose Large-swath altimetry for local ocean circulation including sea state
Short description Equipped with two parallel antennas to implement interferometry. Frequency in X-band (about 9.5 GHz)
Background New development
Scanning Technique Two parallel swaths, 80-km each, total 160 km
Resolution 5 km
Coverage / Cycle Latitute coverage from about 50°S to 50°N in one week
Mass Power Data Rate

 

Providing Agency JAXA
Instrument Maturity Demonstration pending
Utilization Period: 2024 to 2027
Last update: 2021-08-30
Detailed characteristics
Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Instrument classification
  • Earth observation instrument
  • Active and radio-occultation sensor
  • Radar altimeter
WIGOS Subcomponents
  • Subcomponent 1
  • Wide-swath radar altimeters, and high altitude, inclined, high-precision orbit altimeters
  • Wide-swath radar altimeter
  • Conventional radar altimeter
  • Subcomponent 2
  • Interferometric radar altimetry
  • Interferometric radar altimeter [for wide-swath]
  • Subcomponent 3
  • Radar and lidar for vegetation mapping
  • Wide-swath radar altimeter for vegetation mapping
Mission objectives
Primary mission objectives
  • Geoid
  • Ocean dynamic topography
  • Significant wave height
Evaluation of Measurements