BackForwardInstrument:  GOCI-II 

Instrument details
Acronym GOCI-II
Full name Geostationary Ocean Color Imager: Follow-on
Purpose Ocean colour and aerosol
Short description 13 channels in UV, VIS and NIR (between 360 and 900 nm, 10-40 nm bandwidth) including a panchromatic channel
Background Evolution of GOCI flown on COMS-1
Scanning Technique Mechanical, 3-axis stabilised satellite, E-W continuous, S-N stepping
Resolution 250 m over Korea
Coverage / Cycle Area of 2500 km x 2500 km, half-hourly in daylight
Mass Power Data Rate

 

Providing Agency KIOST
Instrument Maturity Backed by strong heritage
Utilization Period: 2020 to 2030
Last update: 2021-06-14
Detailed characteristics

Central wavelength

Bandwidth

SNR @ specified input spectral radiance

380 nm

20 nm

998 @ 93.0 W m-2 μm-1 sr-1

412 nm

20 nm

1050 @ 100 W m-2 μm-1 sr-1

443 nm

20 nm

1145 @ 92.5 W m-2 μm-1 sr-1

490 nm

20 nm

1228 @ 72.2 W m-2 μm-1 sr-1

510 nm

20 nm

1180 @ 64.9 W m-2 μm-1 sr-1

555 nm

20 nm

1124 @ 55.3 W m-2 μm-1 sr-1

620 nm

20 nm

1102 @ 53.3 W m-2 μm-1 sr-1

660 nm

20 nm

1060 @ 32.0 W m-2 μm-1 sr-1

680 nm

10 nm

914 @ 27.1 W m-2 μm-1 sr-1

709 nm

10 nm

914 @ 27.7 W m-2 μm-1 sr-1

745 nm

20 nm

903 @ 17.7 W m-2 μm-1 sr-1

865 nm

40 nm

788 @ 12.0 W m-2 μm-1 sr-1

wideband

N/A

N/A

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
  • Moderate resolution optical imager
WIGOS Subcomponents
  • Subcomponent 1
  • Narrow-band or hyperspectral imagers
  • Narrow-band imager (for ocean colour)
Mission objectives
Primary mission objectives
  • Aerosol Optical Depth
  • Aerosol column burden
  • Colour Dissolved Organic Matter (CDOM)
  • Fraction of Absorbed PAR (FAPAR)
  • Ocean Diffuse Attenuation Coefficient (DAC)
  • Ocean chlorophyll concentration
  • Ocean suspended sediments concentration
  • Oil spill cover
Evaluation of Measurements