BackForwardInstrument:  AOS Doppler Radar 

Instrument details
Acronym AOS Doppler Radar
Full name AOS Doppler Radar
Purpose Precipitation profiling and mapping with nadir doppler information for convective dynamics
Short description Ku-band (13.6 GHz) Doppler radar.
Background New development
Scanning Technique 255 km swath
Resolution 500 m vertical, 5 km horizontal
Coverage / Cycle Global coverage in 5.5 days
Mass Power Data Rate

 

Providing Agency JAXA
Instrument Maturity Flown on an R&D satellite
Utilization Period: TBD
Last update: 2023-10-31
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
  • Cloud and precipitation radar
WIGOS Subcomponents
  • Subcomponent 1
  • Precipitation radars and cloud radars
  • Precipitation radar and cloud radar
Mission objectives
Primary mission objectives
  • Precipitation (liquid or solid)
  • Precipitation intensity at surface (liquid or solid)
Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.
VariableRelevance for measuring this variableOperational limitationsExplanation
Accumulated precipitation (over 24 h)4 - fairLiquid precipitation dominant.. Poor time sampling.. Time sampling to be interpolated by GEO.Ku-band radar (around 13 GHz). Sensitive to liquid precipitation
Cloud drop effective radius1 - primaryNo specific limitation.Ku-band radar (around 13 GHz) for large drops
Cloud ice4 - fairNo specific limitation.Ku-band radar for large particles
Cloud ice Total Column4 - fairNo specific limitation.Ku-band radar (around 13 GHz) for large particles
Cloud ice effective radius1 - primaryNo specific limitation.Ku-band radar (around 13 GHz) for large particles
Cloud liquid water (CLW)1 - primaryNo specific limitation.Ku-band radar (around 13 GHz) for large drops
Cloud liquid water (CLW) total column1 - primaryNo specific limitation.Ku-band radar for large drops
Freezing level height in clouds1 - primaryNo specific limitation.Ku-band radar (around 13 GHz). Detected as "bright-band"
Melting layer depth in clouds1 - primaryNo specific limitation.Ku-band radar (around 13 GHz). Detected as "bright-band"
Precipitation (liquid or solid)*3 - highLiquid precipitation dominant.Ku-band radar (around 13 GHz) for large drops
Precipitation intensity at surface (liquid or solid)*2 - very highLiquid precipitation dominant.Ku-band radar (around 13 GHz). Sensitive to heavy precipitation