GOME-2

Global Ozone Monitoring Experiment - 2

Satellites

MetOp 1 to 3

Status

Operational - Utilised in the period 2006 to ~ 2020

Mission

Ozone profile and total-column or gross profile of other species. Tracked species: BrO, ClO, H2O, HCHO, NO, NO2, NO3, O2, O3, O4, OClO, SO2 and aerosol

Instrument type

UV/VIS grating spectrometer, four bands, 4096 channels, with 200 polarisation channels

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

Coverage/cycle

Global coverage every 3 days with high resolution or 1.5 days with low resolution. Daylight only

Resolution (s.s.p.)

40 x 40 km2 associated to 960 km swath or 40 x 80 km2 associated to 1920 km swath

Resources

Mass: 73 kg - Power: 42 W - Data rate: 400 kbps

Spectral range

Number of channels

Spectral resolution

SNR at specified input radiance

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