Minimize GOMOS

The GOMOS menu to your right provide information concerning the SPPA activities for this instrument. 

A brief description of the instrument, its operations and main mission highlights is available in the sections below:

  Sensor Description   |    Sensor Modes   |   Mission Operations Overview     

Minimize Sensor Description

The GOMOS instrument (Global Ozone Monitoring by Occultation of Stars) is one of the three atmospheric chemistry sensors on-board the Envisat satellite (March 2002 - April 2012). GOMOS is a spectrometer that comprises one UV-Visible channel (250-675 nm) and two near infrared channels (756-773 nm and 926-952 nm). These wavelength regions allow retrieving atmospheric vertical profiles of O3, NO2, NO3, O2, H2O, atmospheric density and aerosols. High-resolution temperature profiles are retrieved  from the scintillation observed by two GOMOS fast-photometer measurements, operating at 1 kHz sampling frequency in the blue (470-520 nm) and in the red (650-700 nm) spectral regions. 


GOMOS instrument uses the technique of stellar occultation. The spectrum of stars in the ultraviolet, visible and the near infrared parts of the electromagnetic spectrum is observed. The species covered by GOMOS are O3, NO2, NO3, neutral density, aerosols, H2O, and O2. Measurements cover altitude region 15 - 100km.