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  • Data (15)
  • News (5)
  • Missions (1)
  • Events (3)
  • Campaigns (1)
  • Event - Workshop

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    2nd MERIS/AATSR User Workshop

    The workshop addressed the utilisation of MERIS and AATSR data for remote sensing of open oceans, coastal waters, land surfaces and atmospheric processes.

  • Data - EO Sign In Authentication (Open)

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    Aeolus L2A Aerosol/Cloud optical product

    The Level 2A aerosol/cloud optical products of the Aeolus mission include: Geo-located consolidated backscatter and extinction profiles Backscatter-to-extinction coefficient LIDAR ratio, scene classification Heterogeneity index Attenuated backscatter signals. Resolution: Horizontal resolution of L2A optical properties at observation scale (~87 km); Exceptions are group properties (horizontal accumulation of measurements from ~3 km to ~87 km) and attenuated backscatters (~3 km). Note: The resolution of "groups" in the L2A can only go down to 5 measurements at the moment, i.e. ~15 km horizontal resolution. This could be configured to go to 1 measurement - Vertical resolution 250-2000 m (Defined by Range Bin Settings).

  • Data - EO Sign In Authentication (Open)

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    Aeolus Level 2C assisted wind fields resulting from NWP (Numerical Weather Prediction) assimilation processing

    The Level 2C wind product of the Aeolus mission provides ECMWF analysis horizontal wind vectors at the geolocations of assimilated L2B HLOS wind components. The L2C can therefore be described as an Aeolus-assisted horizontal wind vector product. The L2C is a distinct product, however the L2C and L2B share a common Earth Explorer file template, with the L2C being a superset of the L2B. The L2C consists of extra datasets appended to the L2B product with information which are relevant to the data assimilation of the L2B winds.

  • Data - EO Sign In Authentication (Open)

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    Aeolus preliminary HLOS (horizontal line-of-sight) wind observations for Rayleigh and Mie receivers

    The Level 1B wind product of the Aeolus mission contains the preliminary HLOS (horizontal line-of-sight) wind observations for Rayleigh and Mie receivers, which are generated in Near Real Time. Standard atmospheric correction (Rayleigh channel), receiver response and bias correction is applied. The product is generated within 3 hours after data acquisition.

  • Data - EO Sign In Authentication (Open)

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    Aeolus Scientific L2B Rayleigh/Mie wind product

    The Level 2B wind product of the Aeolus mission is a geo-located consolidated HLOS (horizontal line-of-sight) wind observation with actual atmospheric correction applied to Rayleigh channel. The product is generated within 3 hours after data acquisition.

  • News - Spotlight on EO community

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    An overview of the Aeolus mission

    In this overview video, ESA's mission manager, Tommaso Parrinello, describes the successes and challenges of this amazing mission, whose impacts will live long beyond its lifetime in space.

  • Campaign

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    C-MAPExp

    The C‐MAPExp campaign was planned and executed to support the demonstration of CarbonSat capabilities.

  • Event - Workshop

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    CEOS-IVOS Workshop on Inter-comparison of Large Scale Optical and Infrared Sensors

    The 2004 workshop was an opportunity to present and exchange experiences and knowledge from work on inter-comparing large scale optical sensors at different product levels.

  • Event - Workshop

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    CEOS-WGCV ACIX II CMIX Atmospheric Correction Inter-comparison Exercise Cloud Masking Inter-comparison Exercise 2nd workshop

    The CEOS-WGCV ACIX II 2nd workshop took place at Esrin, Rome in Italy from 3 December - 5 December 2019.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Geolocated Calibrated Transmission Spectra and Photometer Fluxes [GOM_TRA_1P]

    This data product describes the geolocated and calibrated transmission spectra products, containing the full transmission and the covariance spectra needed for Level 2 processing. Coverage is as follows: Elevation range: +62 deg to +68 deg Azimuth range: +90 deg to +190 deg (with respect to the flight direction). The file size is 1 MB per occultation, depending on the duration of the occultation.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Level 1b - Limb spectra [GOM_LIM_1P]

    This data product describes localised calibrated upper and lower background limb spectra (flat-field corrected, with and without stray light). Coverage is as follows: Elevation range: C25+62 deg to +68 deg Azimuth range: +90 deg to +190 deg (with respect to the flight direction). The file size is Mbytes per occultation, depending on the duration of the occultation.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Level 2 - Atmospheric constituents profiles - Gridded User Friendly Product [GOMOS_UFP_gridded]

    This data product describes atmospheric constituents profiles: In particular the vertical and line density profiles of ozone, NO2, NO3, O2, H2O, air, aerosols, temperature, turbulence. Coverage is as follows: Elevation range: +62° to +68° Azimuth range: +90° to +190° (with respect to the flight direction). The GOMOS data are now also available as user friendly products in the NetCDF4-format. These files are Level 2 constituent profiles and are altitude gridded. These Level 2 files include quality flags and are based and collected on a yearly basis.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Level 2 - Atmospheric constituents profiles - User Friendly Product [GOMOS_UFP]

    This data product describes atmospheric constituents profiles: In particular the vertical and line density profiles of ozone, NO2, NO3, O2, H2O, air, aerosols, temperature, turbulence. Coverage is as follows: Elevation range: +62 deg to +68 deg Azimuth range: +90 deg to +190 deg (with respect to the flight direction) The GOMOS data are now also available as user friendly products in the NetCDF4-format. These products are occultation based (dark and bright) and include all GOMOS Level 2 constituent profiles (O3, NO2, NO3, O2, H2O, air and aerosols) and HRTP profiles with all the essential parameters as in the original Envisat data set format.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Level 2 - Atmospheric constituents profiles [GOM_NL__2P]

    This data product describes atmospheric constituents profiles. In particular the vertical and line density profiles of ozone, NO2, NO3, O2, H2O, air, aerosols, temperature, turbulence. Coverage is as follows: Elevation range: +62 deg to +68 deg Azimuth range: +90 deg to +190 deg (with respect to the flight direction). The file size is 1 Mbyte per occultation, depending on the duration of the occultation.

  • Data - Fast Registration with immediate access (Open)

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    Envisat GOMOS Level 2 - Residual extinction [GOM_EXT_2P]

    Re-computed transmission spectra corrected for scintillation and dilution effects, before and after inversion. Coverage is as follows: Elevation range: +62 deg to +68 deg Azimuth range: +90 deg to +190 deg (with respect to the flight direction). The file size is 1 Mbyte per occultation, depending on the duration of the occultation.

  • Data - Fast Registration with immediate access (Open)

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    Envisat SCIAMACHY Geo-located atmospheric spectra [SCI_NL__1P]

    This data product covers geo-located, radiometrically and spectrally calibrated limb and nadir radiance spectra for Nadir, Limb, and Occultation measurements with additional monitoring and calibration measurements. The Level 1b product is the lowest level of SCIAMACHY data delivered to the users. The instrument Instantaneous Field of View (IFoV) is approximately 0.045 deg (scan direction) x 1.8 deg (flight direction). This corresponds to a ground pixel size of 25 km x 0.6 km at the sub-satellite point (nadir) and of 103 km x 2.6 km at the Earth's horizon (limb). Nadir measurements have a maximum swath width of 960 km (in scan direction) and a typical footprint of 30 km (along track) x 60 km (across track). Limb measurements have a tangent height range spanning from 0 to 100 km with 3 km vertical resolution. Azimuth scans are performed for constant elevation angle, typically 34 elevation steps per limb scan. Maximum azimuth range is +/- 44 deg relative to S/C velocity (Note that the azimuth range is adjusted to observe the same atmospheric volume as for nadir measurements within five minutes). The radiometric resolution is 16 bits, with a spectral resolution of 0.24 nm to 1.5 nm, depending on the spectral range. The Sun normalized radiometric accuracy is 2 to 3% in unpolarized light, and 3 to 4% in polarized light. The relative radiometric accuracy is less than 1% and the spectral accuracy spans form 0.005 nm to 0.035 nm. Individual measurements from dedicated monitoring states include: Sun over diffuser Subsolar calibration Spectral lamp measurements White light source measurements Elevation mirror monitoring (Sun/Moon) ADC calibration Level 1b products are corrected for degradation applying a scan mirror model and m-factors. The latest Level 1b dataset is version 8.0X.

  • Data - Fast Registration with immediate access (Open)

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    Envisat SCIAMACHY Total column densities and stratospheric profiles [SCI_OL__2P]

    The data product provides global column distributions and stratospheric profiles of various trace gases. Total column densities of O3, NO2, OClO, H2O, SO2, BrO, CO, HCHO, CHOCHO and CH4 are retrieved from Nadir measurements. Additional cloud parameters (fractional cloud coverage, cloud-top height, cloud optical thickness) and an aerosol absorption indicator are enclosed. Stratospheric profiles of O3, NO2, and BrO are derived from limb measurements and with flagging information for cloud-types. Tropospheric NO2 columns are retrieved combining limb and nadir measurements. The latest Level 2 dataset is Version 6.01.

  • News - Success Stories

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    ESA facilitates access to greenhouse gas data

    Canadian company GHGSat Inc., which offers high-resolution remote sensing of greenhouse gas emissions, air quality gas, and other trace gas emissions from any point sources in the world, is now an ESA Third Party Mission.

  • Mission - Third Party Missions

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    GHGSat

    The GHGSat mission is dedicated to measuring emissions of greenhouse gases.

  • Data - Project Proposal (Restrained)

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    GHGSat archive and tasking

    The following products are made available: Abundance dataset (Level 2): Set of per-pixel abundances (ppb or mol/m2) for a single species, and per-pixel measurement error expressed as a standard deviation for a single site on a single satellite pass. Data format is GeoTIFF (16-bit) or optionally GeoTIFF (32-bit or 64-bit floating point) Concentration Maps (Level 2): High readability pseudocolour map combining surface reflectance, and column density expressed in ppb or mol/m2 for a single species in PNG (optional PDF) format. The relevant abundance dataset is provided as well. Emission Rates (Level 4): Instantaneous emission rate from targeted source estimated using abundance datasets from a single satellite pass and applying dispersion modelling techniques in PDF format. The delivered product includes the emission rate estimate with uncertainty and key dispersion parameters (in CSV format) as well as the abundance dataset used for the emission estimate. The properties of available products are summarised in the table. Band(s) / Beam Mode(s) and Polarisation SWIR (1635-1675 nm), multiple bands, unpolarised Spatial Resolution <30 m Scene size 12 km x 12 km Species Measured CH4 Geometric Corrections Radial distortion, perspective projection Radiometric Corrections Detector pixel response, ghosting, spectral response, atmospheric correction including trace gas modelling and surface reflectance Details about the data provision, data access conditions and quota assignment procedure are described in the GHGSat Terms of Applicability.