BackForwardInstrument:  UVI(HY) 

Instrument details
Acronym UVI(HY)
Full name HY Ultraviolet Imaging and calibration sensor
Purpose To improve atmospheric correction of high turbid water near the coast.
Short description Radiometer with 2 bands in UV (345-365 nm and 375-395 nm).
Background Development of ocean colour sensors on HY-1 series.
Scanning Technique Cross track scanning with swath 2900 km
Resolution 550m
Coverage / Cycle Near global once a day
Mass Power Data Rate


Providing Agency NSOAS
Instrument Maturity Flown on operational programme
Utilization Period: 7 to 0
Last update: 2023-01-11
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
  • Passive optical radiometer or spectrometer
  • Cross-nadir shortwave (UV/VIS) sounder
WIGOS Subcomponents
  • Subcomponent 1
  • UV/VIS/NIR sounders, nadir and limb
  • UV/VIS/NIR nadir sounder
Mission objectives
Primary mission objectives
  • Ocean suspended sediments concentration
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.