Global Ozone Monitoring Experiment 
(GOME) on Board of ERS 2
*
J. Callies, A. Lefebvre, A.Hahne
*
Earth Observation Projects Department, ESA/ESTEC
2200 AG Noordwijk, NL
jcallies@jw.estec.esa.nl
*


Abstract

The second European Remote Sensing satellite (ERS 2) was successfully
launched on 21st , April 1995. GOME is the only completely new
instrument on board of ERS-2. For 3 months GOME has been commissioned
in orbit. Until  July 1996 GOME was in the  geophysical validation
phase. The ground processing of GOME data is done by the German Remote
Sensing Processing Facility (DFD, DLR). Total column ozone data as ESA
level 2  product are released since  beginning  of August  1996.  ERS
2 is flying on a sun synchronous polar orbit in about 780 km with a
descending equator crossing time at 10:30 local time. GOME is a nadir
viewing spectrometer which observes  solar radiation transmitted
through or scattered from the earth atmosphere or the surface. The
spectrometer covers a wavelength range from 240 to 793 nm with a
spectral resolution of  0.2 to 0.3 nm. The spectrum is recorded
simultaneously by 4 detector arrays. In addition 3 broad band
polarisation detectors are included. Using the  differential optical
absorption spectroscopy technique (DOAS) the detection of column
densities of ozone and nitrogen dioxide is now operational. First
total column ozone measurements are shown.

Keywords: GOME, Ozone Monitoring, Instrument


Joerg Callies
ESA/ESTEC LTP
Earth Observation Projects Department
email: jcallies@jw.estec.esa.nl
phone: +31 71 5655179 fax: +31 71 5653353

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry