BackForwardInstrument:  GOME-2 

Instrument details
Acronym GOME-2
Full name Global Ozone Monitoring Experiment - 2
Purpose Ozone profile and total-column or gross profile of other species.  Tracked species: BrO, CHOCHO, H2O, HCHO, NO2, O2, O3, O4, OClO, SO2 and aerosol
Short description
  • UV/VIS/NIR grating spectrometer, four bands, 4096 channels, with 200 polarisation channels [see detailed characteristics below]
  • Monitoring and calibration information here
Background

Evolution of GOME flown on ERS-2
Scanning Technique

Cross-track: 24 steps of 40 km or 80 km ssp, swath 960 or 1920 km - Along-track: one 40-km line every 6 s
Resolution Main channels: 40 x 40 km2 associated to 960 km swath or 40 x 80 km2 associated to 1920 km swath. Polarisation channels: respectively 40 x 5 km2 or 40 x 10 km2 .
Coverage / Cycle Global coverage every 3 days with high resolution or 1.5 days with low resolution.  Daylight only
Mass 73 kg Power 42 W Data Rate 400 kbps

 

Providing Agency ESA
Instrument Maturity Flown on operational programme
Utilization Period: 2007 to 2027
Last update: 2024-09-23
Detailed characteristics
Spectral range Number of channels Spectral resolution SNR @ specified albedo
240-315 nm 1024 0.24 - 0.29 nm 7-177 @ 50 % albedo and 60° Solar Zenith Angle
311-403 nm 1024 0.26 - 0.28 nm 372-3000 @ 50 % albedo and 60° SZA
401-600 nm 1024 0.44 - 0.53 nm 4000 @ 50 % albedo and 60° SZA
590-790 nm 1024 0.44 - 0.53 nm 2000-4000 @ 50 % albedo and 60° SZA
312-790 nm 200 2.8 nm at 312 nm to 40 nm at 790 nm 100 for λ< 400 nm, 1000 for 400 nm < λ < 790 nm
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
  • Subcomponent 3
  • NIR spectrometer
  • NIR spectrometer
Mission objectives
Primary mission objectives
  • BrO
  • CH3Br
  • ClO
  • H2O
  • HCHO
  • HCHO Total Column
  • NO
  • NO2
  • NO2 Total Column
  • O3
  • O3 Total Column
  • SO2
  • SO2 Total Column
Evaluation of Measurements