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Envisat - 25,000 orbits, December 2006
Discover Envisat's milestone 25,000th orbit with satellite images from December 2006.
Cuba: A Satellite Perspective from 2003
View Cuba through an Envisat satellite image from 2003.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2012
View the Envisat satellite's 2012 imagery, highlighting diverse global features including the Red Sea, Tropical Cyclone Funso, Sakhalin, the Baltic Sea, and the coast of Mauritania.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2011
Discover the diverse global phenomena captured by the Envisat satellite in 2011, including volcanic eruptions, mountain landscapes, wildfires, and tropical storms.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2010
Explore a variety of global phenomena captured by the Envisat satellite in 2009, including pre-fire conditions in Russia, Tropical Storm Bonnie near the Bahamas, and a snow-covered Mount Etna in Italy.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2009
See Envisat satellite images from 2009, showcasing a sandstorm over the Great Barrier Reef, the Gulf of Genoa, and Typhoon Mirinae as it approaches Vietnam.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2007
View a collection of Envisat satellite images from 2007, all captured using the Full Resolution Full Swath product.
Gallery of Envisat MERIS Full Resolution Full Swath Images, 2008
Explore detailed Envisat satellite imagery from 2008.
Nubian Region (Africa), 2004
View the Nubian Region between southern Egypt and northern Sudan in an Envisat satellite image from August 2004.
Great Lakes (United States of America), 2004
See the Great Lakes of North America through Envisat satellite image.
Space data support Earth’s ecosystems
ESA’s Earth observation (EO) missions are making a critical contribution to monitoring transformations in our planet’s ecosystems, helping track changes in the vegetation, soil, and ocean that affect these systems.
Focusing on Envisat MERIS Full Resolution Level-2 data
ESA's Envisat mission continued and expanded upon the legacy of its predecessors, the ERS (European Remote Sensing) satellites. Operating between 2002 and 2012, the satellite's 10 instruments acquired a decade of data for many applications.
Global understanding of Earth's land surfaces greatly boosted by satellite data
ESA perform land surface monitoring with a range of instruments onboard satellites acquiring optical and radar data. Collections of data from these missions are freely available for research purposes.
Data preservation takes centre stage at Living Planet Symposium
Against the backdrop of the famed Rhine River, world-class scientists and Earth observation data-users are gathered this week in the historical city of Bonn, at the Living Planet Symposium (LPS).
Interviewing Mirko Albani
ESA’s Heritage Space Programme Manager describes the goals of the programme, some of the challenges involved in preserving and improving 40 years of historical Earth observation data, and his passion for curating this long-term archive.
How Envisat helped to shape global understanding of Earth’s systems
Twenty years have passed since a ground-breaking European spacecraft designed to deliver unprecedented insight into the planet’s changing environment was lofted into orbit.
Envisat - ESA's versatile Earth observation satellite
Learn more about ESA's Envisat mission - the largest Earth observation satellite ever built - in a new infographic.
Envisat MERIS Full Resolution - Level 1 [MER_FRS_1P/ME_1_FRG]
The MERIS Level 1 Full Resolution (FR) product contains the Top of Atmosphere (TOA) upwelling spectral radiance measurements. The in-band reference irradiances for the 15 MERIS bands are computed by averaging the in-band solar irradiance of each pixel. The in-band solar irradiance of each pixel is computed by integrating the reference solar spectrum with the band-pass of each pixel. The MERIS FR Level 1 product has Sentinel 3-like format starting from the 4th reprocessing data released to users in July 2020. Each measurement and annotation data file is in NetCDF 4. The Level 1 product is composed of 22 data files: 15 files containing radiances at each band (one band per file), accompanied by the associated error estimates, and 7 annotation data files. The 15 sun spectral flux values provided in the instrument data file of the Level 1 products are the in-band reference irradiances adjusted for the Earth-sun distance at the time of measurement. The band-pass of each pixel is derived from on-ground and in-flight characterisation via an instrument model. The values "Band wavelength" and "Bandwidth" provided in the Manifest file of the Level 1b products are the averaged band-pass of each pixel over the instrument field of view. Auxiliary data are also listed in the Manifest file associated to each product. The Level 1 FR product covers the complete instrument swath. The product duration is not fixed and it can span up to the time interval of the input Level 0 (for a maximum of 20 minutes). Thus the estimated size of the Level 1 FR is dependent on the start/stop time of the acquired segment. During the Envisat mission, acquisition of MERIS Full Resolution data was subject to dedicated planning based on on-demand ordering and coverage of specific areas according to operational recommendations and considerations. See yearly and global density maps to get a better overview of the MERIS FR coverage.
Envisat MERIS Full Resolution - Level 2 [MER_FRS_2P/ME_2_FRG]
MERIS FR Level 2 is a Full-Resolution Geophysical product for Ocean, Land and Atmosphere. Each MERIS Level 2 geophysical product is derived from a MERIS Level 1 product and auxiliary parameter files specific to the MERIS Level 2 processing. The MERIS FR Level 2 product has Sentinel 3-like format starting from the 4th reprocessing data released to users in July 2020. The data package is composed of NetCDF 4 files containing instrumental and scientific measurements, and a Manifest file which contains metadata information related to the description of the product. A Level 2 product is composed of 64 measurement files containing: 13 files containing Water-leaving reflectance, 13 files containing Land surface reflectance and 13 files containing the TOA reflectance (for all bands except those dedicated to measurement of atmospheric gas - M11 and M15), and several files containing additional measurements on Ocean, Land and Atmospheric parameters and annotation. The Auxiliary data used are listed in the Manifest file associated to each product. The Level 2 FR product covers the complete instrument swath. The product duration is not fixed and it can span up to the time interval of the input Level 0/Level 1. Thus the estimated size of the Level 2 FR is dependent on the start/stop time of the acquired segment. During the Envisat mission, acquisition of MERIS Full Resolution data was subject to dedicated planning based on on-demand ordering and coverage of specific areas according to operational recommendations and considerations. See yearly and global density maps to get a better overview of the MERIS FR coverage.
SEOM CAWA
The Advanced Clouds, Aerosols and WAter vapour products for Sentinel-3/OLCI project aims to develop and improve the advanced atmospheric retrieval algorithms developed for MERIS and OLCI instruments.