BackForwardInstrument:  EMI-2 

Instrument details
Acronym EMI-2
Full name Environment Monitoring Instrument-2
Purpose Ozone profile and total-column or gross profile of other species. Tracked species: BrO, ClO H2O, HCHO, NO, NO2, O3, SO2 and aerosol
Short description Updated version of EMI a UV/VIS grating imaging spectrometer, four bands, 1536 channels total [see detailed characteristics below]. Differences of EMI-2 from EMI will be added when available.
Background Heritage of the Ozone Monitoring Instrument (OMI) flown on Aura
Scanning Technique Pushbroom, cross-track swath 2500 km
Resolution 13 km along-track x 48 km cross-track
Coverage / Cycle Global coverage every day, in daylight
Mass Power Data Rate

 

Providing Agency CNSA
Instrument Maturity Flown on an R&D satellite
Utilization Period: 2022 to 2030
Last update: 2022-07-18
Detailed characteristics

Spectral range

No. of channels

Spectral resolution

SNR @ specified input spectral radiance

240-315 nm

256

0.3 nm

200 @ 1.27 mW cm-2 sr-1 nm-1

311-403 nm

256

0.3 nm

200 @ 1.27 mW cm-2 sr-1 nm-1

401-600 nm

512

0.5 nm

2000 @ 10.89 mW cm-2 sr-1 nm-1

590-790 nm

512

0.5 nm

2000 @ 10.89 mW cm-2 sr-1 nm-1

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
  • BrO
  • CH3Br
  • ClO
  • H2O
  • HCHO
  • HCHO Total Column
  • NO
  • NO2
  • NO2 Total Column
  • O3
  • O3 Total Column
  • SO2
  • SO2 Total Column
Evaluation of Measurements