GOME

Global Ozone Monitoring Experiment

Satellite

ERS-2

Status

Operational – Utilised in the period 1995 to ~ 2011

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 3 polarisation channels

Scanning technique

Cross-track: 3 steps of 40 km or 320 km ssp, swath 120 or 960 km - Along-track: one 40-km line every 6 s

Coverage/cycle

Global coverage every 24 days with high resolution or 3 days with low resolution. Daylight only

Resolution (s.s.p.)

40 x 40 km2 associated to 120 km swath or 40 x 320 km2 associated to 960 km swath

Resources

Mass: 50 kg - Power: 50 W - Data rate: 40 kbps

Spectral range

Number of channels

Spectral resolution

SNR at specified input radiance

240 - 295 nm

1024

0.22 nm

................. @ ......... W m-2 sr-1 nm-1

290 - 405 nm

1024

0.24 nm

................. @ ......... W m-2 sr-1 nm-1

400 - 605 nm

1024

0.40 nm

................. @ ......... W m-2 sr-1 nm-1

590 - 790 nm

1024

0.40 nm

................. @ ......... W m-2 sr-1 nm-1

290 - 790 nm

3

292-402 nm, 402-597 nm, 597-790 nm

................. @ ......... W m-2 sr-1 nm-1