The ESA's ENVISAT satellite
launched on March 1, 2002. Just weeks after celebrating its
tenth year in orbit, communication with the satellite was suddenly
lost and the end
of the mission had to be declared.
The Envisat programme was
a continuation of the ERS-1 and ERS-2 missions.
It was primarily intended for scientific research.
Along with instruments which were already present on the ERS satellites
(ASAR, RA-2, AATSR), ENVISAT also had onboard a range of other instruments,
including GOMOS (Global Ozone Monitoring by Occultation of Stars),
MIPA (Michelson Onterferometer for Passive Atmospheric sounding)
and SCIAMACHY (SCanning Imaging Absorption spectroMeter for Atmospheric
The MERIS (MEdium Resolution
Imaging Spectrometer) instrument is a programmable spectrometer
allowing data recording in 15 spectral bands in the 390 –
1040 nm range and with a spatial resolution of 1040 x 1200 m for
marine applications and of 2360 x 300 m for land and coastal applications..
The 10 instruments onboard
Envisat were designed to study Earth’s land, ocean, atmosphere
and ice caps. The collected data from the various sensors can be
study environmental and climate changes on Earth at the local,
regional and global levels
contribute to the management and monitoring of all raw materials,
whether renewable or not
continue measurements to serve the meteorological community
acquire a better understanding of the dynamic and structure
of the Eearth's crust and interior.
Among the parameters that can be studied, we can
mention: ocean colour, cloud cover, ozone layer thickness, greenhouse
gas emissions, terrestrial biomass, iceberg topography, wave height,
soil moisture content or the top-of-atmosphere irradiance.
altitude: 800 km
orbit period: ±100 min
revisit time (MERIS): 3 days
service life: 1/03/2002 - 9/05/2012
Envisat technical site
Access to data : ESA Earth Online Data Access
to Envisat data