Italy
This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
Largo Galileo Galilei 1
ESA/ESRIN
Imagery Base Maps Earth Cover
Thematic collection: Bulk processed ERS-1/2 SAR and Envisat ASAR Image Mode Single Look Complex (IMS) and Precision (IMP) Level 1 products covering Austria generated by EODC.
ERS SAR & Envisat ASAR Austria coverage - L1 (IM)
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.
No info available.
European Space Agency, 2025, ERS SAR & Envisat ASAR Austria coverage - L1 (IM), Version 1.0.
EARTH SCIENCE>AGRICULTURE
EARTH SCIENCE>BIOSPHERE
EARTH SCIENCE>OCEANS>MARINE ENVIRONMENT MONITORING>MARINE OBSTRUCTIONS
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>HUMAN DIMENSIONS
EARTH SCIENCE>LAND SURFACE
EARTH SCIENCE>HUMAN DIMENSIONS>NATURAL HAZARDS
EARTH SCIENCE>OCEANS
EARTH SCIENCE>CRYOSPHERE>SEA ICE
EARTH SCIENCE>AGRICULTURE>SOILS
EARTH SCIENCE>TERRESTRIAL HYDROSPHERE
EARTH SCIENCE>LAND SURFACE>TOPOGRAPHY
EARTH SCIENCE>BIOSPHERE>VEGETATION
ENVISAT
AMI
ASAR
Orthoimagery
Agriculture
Biosphere
Coastal Processes
Cryosphere
Human Dimensions
Land Surface
Natural Hazards and Disaster Risk
Oceans
Sea Ice
Soils
Terrestrial Hydrosphere
Topography
Vegetation
Sun-synchronous
ERS-1, ERS-2: SAR_IMS_1P, SAR_IMP_1P
Envisat: ASA_IMS_1P, ASA_IMP_1P
Envisat: 800 km
ERS-1, ERS-2: 5 km
Envisat 5 - 1150 km
Imaging Radars
Envisat
AMI/SAR
EO Sign In Authentication
Open data
World Wide

Italy
Largo Galileo Galilei 1
ESA/ESRIN
Oceans
This is the Sea Ice Thematic Data Product (TDP) V1 resulting from the _$$ESA FDR4ALT project$$ https://www.fdr4alt.org/ and containing the sea ice related geophysical parameters, along with associated uncertainties: snow depth, radar and sea-ice freeboard, sea ice thickness and concentration.
The collection covers data for the ERS-1, ERS-2 and Envisat missions, and bases on Level 1 data coming from previous reprocessing (ERS REAPER and the Envisat V3.0) but taking into account the improvements made at Level 0/Level 1 in the frame of FDR4ALT (_$$ALT FDR$$ https://earth.esa.int/eogateway/catalog/fdr-for-altimetry).
The Sea Ice TDP provides data from the northern or southern hemisphere in two files corresponding to the Arctic and Antarctic regions respectively for the winter periods only, i.e., October to June for the Arctic, and May to November for the Antarctic.
For many aspects, the Sea Ice TDP is very innovative:
First time series of sea-ice thickness estimates for ERS
Homogeneous calibration, allowing the first Arctic radar freeboard time series from ERS-1 (1991) to CryoSat-2 (2021)
Uncertainties estimated along-track with a bottom-up approach based on dominant sources
ERS pulse blurring error corrected using literature procedure [Peacock, 2004]
The FDR4ALT products are available in NetCDF format. Free standard tools for reading NetCDF data can be used.
Information for expert altimetry users is also available in a dedicated NetCDF group within the products.
Please consult the _$$FDR4ALT Product User Guide$$ before using the data.
The FDR4ALT datasets represent the new reference data for the ERS/Envisat altimetry missions, superseding any previous mission data. Users are strongly encouraged to make use of these datasets for optimal results.
Sea Ice Thematic Data Product [ALT_TDP_SI]
EO Sign In Authentication
Open data
EO Sign In Authentication (Open) 1.Go to the _$$Dissemination Service$$ 2.Find the product you want using the search options 3.Register or log in to EO Sign In 4.Download (via HTTPS or FTPS)
The _$$dissemination service$$ https://hm-lbr-ds.eo.esa.int/oads/access/collection provides data generated within the ESA FDR4ALT project. The data is collection based and allows data browsing and download via treeview, filename or advanced catalogue search. Data download is available via HTTPS, including bulk download functionality. ESA internal users can use their ESAAD account to access the HTTPS Dissemination Service. Access to ftps://hm-lbr-ds.eo.esa.int is available via common FTP clients using “implicit FTP over TLS” and your own EO Sign In credentials. For internal ESA users the ESAAD account cannot be used for FTP access. New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit _$$TellUs$$ Should you need support to access the data, please contact _$$EOHelp$$
World Wide
European Space Agency, 2023, FDR4ALT Sea-Ice Thematic Data Product. Version 1.0.
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>OCEANS
EARTH SCIENCE>CRYOSPHERE>SEA ICE
ENVISAT
MWR
RA
Cryosphere
Sea Ice
Sun-synchronous
Radar Altimeters
Imaging Spectrometers/Radiometers
Envisat
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

Italy
This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
Largo Galileo Galilei 1
ESA/ESRIN
Imagery Base Maps Earth Cover
The SAR Precision product is a multi-look (speckle-reduced), ground range image acquired in Image Mode. This product type is most applicable to users interested in remote sensing applications, but is also suitable for calibration purposes. The products are calibrated and corrected for the SAR antenna pattern and range-spreading loss. Radar backscatter can be derived from the products for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The images are not geocoded, and terrain distortion (foreshortening and layover) has not been removed. The numbering sequence relates to the satellite position and therefore differs between Ascending and Descending scenes. Product characteristics: - Pixel size: 12.5 m (range - across track) x 12.5 m (azimuth - along track) - Scene area: 100 km (range) x at least 102.5 km (azimuth) - Scene size: 8000 pixels range x at least 8200 lines (azimuth) - Pixel depth: 16 bits unsigned integer - Total product volume: 125 MBs - Projection: Ground-range - Number of looks: 3
ERS-1/2 SAR IM Precision L1 [SAR_IMP_1P]
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
conditions to access and use unknown
No info available.
EARTH SCIENCE>LAND SURFACE
EARTH SCIENCE>LAND SURFACE>TOPOGRAPHY
EARTH SCIENCE>BIOSPHERE>VEGETATION
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>CRYOSPHERE>SNOW/ICE
EARTH SCIENCE>CRYOSPHERE>SEA ICE
AMI
Orthoimagery
Land Surface
Topography
Vegetation
Cryosphere
Snow and Ice
Sea Ice
Sun-synchronous
5 km
Imaging Radars
AMI/SAR
EO Sign In Authentication
Open Data
EO Sign In Authentication (Open) 1. Go to the _$$Dissemination Service$$ https://esar-ds.eo.esa.int/oads/access/collection/SAR_IMP_1P 2. Find the product you want via a map using the catalogue search 3. Register or log in to EO Sign In 4. Download
The ESA (A)SAR On-the-fly (OTF) data processing and dissemination service allows end-users to gain direct access to the (A)SAR archive from the ERS-1, ERS-2 and Envisat Missions. The data is collection based and allows data browse and download through the treeview as well as via _$$geographical catalogue search$$ http://esar-ds.eo.esa.int/socat/SAR_IMP_1P based on area of interest and metadata. Data download is available via HTTPS, including bulk download functionality. ERS products can also be discovered through _$$ESA's EO Catalogue (EO CAT)$$ , which allows users to discover and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal, specific). For information on the (A)SAR On-The-Fly service please refer to the _$$OTF User Manual$$ . New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit _$$TellUs$$ . For internal ESA users the ESAAD account cannot be used. Should you need support to access the data, please contact _$$EOHelp$$
World Wide

Climatology Meteorology Atmosphere
This is the Atmospheric Thematic Data Product (TDP) V1 resulting from the _$$ESA FDR4ALT project$$ https://www.fdr4alt.org/ and containing Total Column Water Vapour (TCWV), Cloud Liquid Water Path (LWP), Atmospheric Attenuation of the altimeter backscattering coefficient at Ku-band (AttKu), and Wet Tropospheric Correction (WTC), retrieved from observations of the Microwave Radiometer (MWR) instruments flown on-board the ERS-1, and ERS-2, and Envisat satellites.
Compared to existing datasets, the Atmospheric TDP demonstrates notable improvements in several aspects:
Improved temporal coverage, especially for ERS-2
Improved L0 -> 1 processing
Two different corrections are provided based on a neural network retrieval or on a 1D-VAR approach
The FDR4ALT products are available in NetCDF format. Free standard tools for reading NetCDF data can be used.
Information for expert altimetry users is also available in a dedicated NetCDF group within the products.
Please consult the _$$FDR4ALT Product User Guide$$ before using the data.
The FDR4ALT datasets represent the new reference data for the ERS/Envisat altimetry missions, superseding any previous mission data. Users are strongly encouraged to make use of these datasets for optimal results.
Atmospheric Thematic Data Product [MWR_TDPATM]
EO Sign In Authentication (Open)
Open data
EO Sign In Authentication (Open) 1. Go to the _$$Dissemination Service$$ 2. Find the product you want using the search options 3. Register or log in to EO Sign In 4. Download (Via HTTPS or FTPS)
The _$$dissemination service$$ https://hm-lbr-ds.eo.esa.int/oads/access/collection provides data generated within the ESA FDR4ALT project. The data is collection based and allows data browsing and download via treeview, filename or advanced catalogue search. Data download is available via HTTPS, including bulk download functionality. ESA internal users can use their ESAAD account to access the HTTPS Dissemination Service. Access to ftps://hm-lbr-ds.eo.esa.int is available via common FTP clients using “implicit FTP over TLS” and your own EO Sign In credentials. For internal ESA users the ESAAD account cannot be used for FTP access. New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit _$$TellUs$$ . Should you need support to access the data, please contact _$$EOHelp$$ .
European Space Agency, 2023, FDR4ALT Atmospheric Thematic Data Product. Version 1.0.
EARTH SCIENCE>ATMOSPHERE
ENVISAT
RA
MWR
Atmosphere
Radar Altimeters
Imaging Spectrometers/Radiometers
Envisat
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
Imagery Base Maps Earth Cover
Thematic collection: ESAR OTF bulk processed ERS-1/2 SAR and Envisat ASAR Image Mode Single Look Complex (IMS) Level 1 products covering Italian volcanoes.
ERS SAR & Envisat ASAR Italy volcanoes - L1 (IM)
No info available.
European Space Agency, 2025, ERS SAR & Envisat ASAR Italy volcanoes - L1 (IM), Version 1.0.
EARTH SCIENCE>AGRICULTURE
EARTH SCIENCE>BIOSPHERE
EARTH SCIENCE>OCEANS>MARINE ENVIRONMENT MONITORING>MARINE OBSTRUCTIONS
EARTH SCIENCE>HUMAN DIMENSIONS
EARTH SCIENCE>LAND SURFACE
EARTH SCIENCE>HUMAN DIMENSIONS>NATURAL HAZARDS
EARTH SCIENCE>OCEANS
EARTH SCIENCE>CRYOSPHERE>SNOW/ICE
EARTH SCIENCE>AGRICULTURE>SOILS
EARTH SCIENCE>TERRESTRIAL HYDROSPHERE
EARTH SCIENCE>LAND SURFACE>TOPOGRAPHY
EARTH SCIENCE>BIOSPHERE>VEGETATION
AMI
ASAR
Orthoimagery
Agriculture
Biosphere
Coastal Processes
Human Dimensions
Land Surface
Natural Hazards and Disaster Risk
Oceans
Snow and Ice
Soils
Terrestrial Hydrosphere
Topography
Vegetation
ERS-1, ERS-2: SAR_IMS_1P
Envisat: ASA_IMS_1P
Envisat: 800 km
ERS-1, ERS-2: 5 km
Envisat 5 – 1150 km
Imaging Radars
AMI/SAR

This ERS Medium Resolution strip-line product is generated from the Image Mode Level 0 Product. Strip-line image products contain image data for an entire segment, up to a maximum size of 10 minutes per product for IM mode. The processor concatenates together several sub-images called "slices" that were processed separately on a dataset-by-dataset basis in order to form the entire strip-line image. The product is processed to an approximately 150 m x 150 m resolution and has a radiometric resolution that is good enough for ice applications. This product has a lower spatial resolution than the SAR_IMP_1P and SAR_IMS_1P products. The SAR IM L0 full mission data archive has been bulk processed to Level 1 (SAR_IMM_1P) in Envisat format with the PF-ERS processor version 6.01. Product Characteristics: - Pixel size: 5 m (ground range – across track) x 75 m (azimuth – along track) - Scene area: 100 km (range) x at least 102.5 km - Scene Size: 1300 pixels (range) x at least 1350 lines (azimuth) - Pixel depth: 16 bits unsigned integer - Total product volume: at least 3.5 MB - Projection: Ground-range - Number of looks: 8 (azimuth) x 7 (range)
ERS-1/2 SAR IM Medium Resolution L1 [SAR_IMM_1P]
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
conditions to access and use unknown
European Space Agency, 2017-2021, ERS-1/2 SAR Image Mode Medium Resolution Level 1 Product. IPF Version 6.01.
EARTH SCIENCE>CRYOSPHERE>SNOW/ICE
Snow and Ice
PF-ERS / Envisat format
5 km
Open Data
EO Sign In Authentication (Open) 1. Go to the _$$Dissemination Service$$ https://esar-ds.eo.esa.int/oads/access/collection/SAR_IMM_1P 2. Find the product you want via a map using the catalogue search 3. Register or log in to EO Sign In 4. Download
The ESA (A)SAR On-the-fly (OTF) data processing and dissemination service allows end-users to gain direct access to the (A)SAR archive from the ERS-1, ERS-2 and Envisat Missions. The data is collection based and allows data browse and download through the treeview as well as via _$$geographical catalogue search$$ http://esar-ds.eo.esa.int/socat/SAR_IMM_1P based on area of interest and metadata. Data download is available via HTTPS, including bulk download functionality. ERS products can also be discovered through _$$ESA's EO Catalogue (EO CAT)$$ , which allows users to discover and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal, specific). For information on the (A)SAR On-The-Fly service please refer to the _$$OTF User Manual$$ . New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit _$$TellUs$$ . For internal ESA users the ESAAD account cannot be used. Should you need support to access the data, please contact _$$EOHelp$$

Climatology Meteorology Atmosphere
The GOME Total Column Water Vapour (TCWV) Climate product was generated by the Max Planck Institute for Chemistry (MPIC), and the German Aerospace Center (DLR) within the ESA GOME-Evolution project. It is a Level 3 type product containing homogenized time-series of the global distribution of TCWV spanning over more than two decades (1995-2015). The data is provided as single netCDF file, containing monthly mean TCWV (units kg/m2) with 1-degree resolution, and is based on measurements from the satellite instruments ERS-2 GOME, Envisat SCIAMACHY, and MetOp-A GOME-2. Details are available in the paper by Beirle et al, 2018,. Please also consult the GOME TCWV Product Quality Readme file before using the data.
GOME Total Column Water Vapour Climate product
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
conditions to access and use unknown
European Space Agency, 2018, GOME Total Column Water Vapour Climate product. Version 2.2.
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC CHEMISTRY
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC RADIATION
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC TEMPERATURE
EARTH SCIENCE>CLIMATE INDICATORS
GOME
Atmosphere
Atmospheric Chemistry
Atmospheric Radiation
Atmospheric Temperature
Climate
GDP 5.0
5 km
Spectrometers
Fast Registration with immediate access
Open Data
Fast Registration with Immediate Access (Open) 1. Go to the _$$ESA User Services Portal$$ 2. Register or log in to EO Sign In 3. Fill in and submit the form for accessing the data 4. You will receive an email with your user name 5. A second email will follow with your password to download the data from the _$$gome-ftp-ds.eo.esa.int$$ ftp://gome-ftp-ds.eo.esa.int/ server via an FTP client (see Read More for connection details) or, alternatively, from command line using L-FTP
The data can be downloaded via an FTP client (e.g., FileZilla or WinSCP) using the options "explicit FTP over TLS if available" or "Require explicit FTP over TLS". See the GOME _$$Product availability$$ table For further information about the EO Sign In Service you can visit _$$TellUs$$ Should you need support to access the data, please contact _$$EOHelp$$

Climatology Meteorology Atmosphere
The ERS data reprocessed with the ASPS facility is also available in the UWI format to maintain the compatibility with the FD (Fast Delivery) products. The ASPS UWI product is organised in frames of 500 x 500 km providing the radar backscattering sigma nought for the three beams of the instrument plus the wind speed and direction. The wind retrieval is performed with the CMOD5N geophysical model function derived by ECMWF to compute the neutral winds rather than 10m winds. ASPS UWI products are provided with a spatial resolution of 50x50km and a grid spacing of 25 km. One product covers one orbit from ascending node crossing. Please consult the Product Quality Readme file before using the ERS ASPS data.
ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI]
European Space Agency, 2019, ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI], Version ASPS v10.04.
EARTH SCIENCE>HUMAN DIMENSIONS>NATURAL HAZARDS
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WINDS
ERS WIND SCATTEROMETER
Natural Hazards and Disaster Risk
Atmosphere
Atmospheric Winds
Very Low Resolution - VLR (> 1200 m)
Scatterometers
AMI/Scatterometer
Fast Registration with immediate access
Fast Registration with Immediate Access (Open) 1. Go to the _$$ESA User Services Portal$$ 2. Register or log in to EO Sign In 3. Fill in and submit the form for accessing the data 4. You will receive an email with your user name 5. A second email will follow with your password to download the data from the _$$erswsc-ftp-ds.eo.esa.int$$ ftp://erswsc-ftp-ds.eo.esa.int/ server via an FTP client (see Read More for connection details) or, alternatively, from command line using L-FTP
The data can be downloaded via an FTP client (e.g., FileZilla or WinSCP) using the options "explicit FTP over TLS if available" or "Require explicit FTP over TLS". Reprocessed Data: ERS-1 data is available from 1 August 1991 to 2 June 1996. ERS-2 data is available from 26 March 1996 to 4 July 2011. See ERS-WS _$$Product availability$$ table For further information about the EO Sign In Service you can visit _$$TellUs$$ Should you need support to access the data, please contact _$$EOHelp$$

Geoscientific Information
The precise orbit results from a data reduction process in which all available tracking data (Single-Lens Reflex, radar altimeter crossovers, PRARE range and Doppler data) and most accurate correction, transformation and dynamical models are taken into account and in which high level numerical procedures are applied. These orbits are "optimal" achievable representations of the real orbital motion under the circumstances of tracking situation and the "state of the art" model situation. The precise orbit product for the ERS satellites are the satellite ephemeris (position and velocity vector) including time tag, given in a well-defined reference frame, together with the nominal satellite attitude information and a radial orbit correction. Several orbit solutions are currently distributed: A new set of ORB POD (Precise Orbit Determination - REAPER v2) computed with the most updated model standards for the complete ERS-1 and ERS-2 mission. A previous set of ORB POD (REAPER v1) data already available on the ESA dissemination site since 2014, covering the ERS-1 full mission and the ERS-2 mission up to July 2003. ORB PRC which is the original Precise Orbit dataset computed during the ERS mission operations for ERS-1 and ERS-2. In the new POD dataset (REAPER v2) for the ERS-1 and ERS-2 missions, two different orbit solutions are provided together with the combined solution to be used for processing of the radar altimeter measurements and the determination of geodetic/geophysical products: those computed by DEOS (Delft Institute of Earth Observation and Space Systems), and those generated by ESOC (European Space Operations Centre) using different software (GEODYN and NAPEOS respectively). Careful evaluation of the various solutions of REAPER v2 has shown that the DEOS solution for both ERS-1 and ERS-2 has the best performance and is recommended to be used as reference. See the ERS Orbit Validation Report For the previous version of the POD data set (REAPER v1), with ERS-2 mission data only up to 2003, three different orbit solutions together with the combined solution are available. These precise orbits for ERS-1 and ERS-2 have been computed at DEOS, ESOC, and GFZ (Deutschen GeoForschungsZentrums) using different software and different altimeter databases. Combined solutions have been created using three individual solutions for each satellite. All orbits were derived using consistent models in the same LPOD2005 terrestrial reference frame. These new orbit solutions show notable improvement with respect to DGME04 orbits (Scharroo and Visser, 1998). Thus, RMS crossover differences of new orbits improved by 4-9 mm. Careful evaluation of the various solutions has shown that the combined solution for both ERS-1 and ERS-2 has the best performance. All POD orbit files (REAPER v1/v2) are available in SP3c format (ftp://igscb.jpl.nasa.gov/igscb/data/format/sp3c.txt).
ERS PRARE Precise Orbit Products [ERS.ORB.POD/ERS.ORB.PRC]
EARTH SCIENCE>SOLID EARTH
EARTH SCIENCE>SOLID EARTH>GEODETICS
PRARE
Solid Earth
Geodetics
Positioning/Navigation
Fast Registration with Immediate Access (Open) 1. Go to the _$$ESA User Services Portal$$ 2. Register or log in to EO Sign In 3. Submit the form for accessing the data 4. You will receive an emali with your user name 5. A second email will follow with your password to download the data from the _$$ersorb-ftp-ds.eo.esa.int$$ ftp://ersorb-ftp-ds.eo.esa.int/ server via an FTP client (see Read More for connection details) or, alternatively, from command line using L-FTP
The data can be downloaded via an FTP client (e.g., FileZilla or WinSCP) using the options "explicit FTP over TLS if available" or "Require explicit FTP over TLS". See Precise Orbit _$$Product availability table$$ For further information about the EO Sign In Service you can visit _$$TellUs$$ Should you need support to access the data, please contact _$$EOHelp$$

This SAR Level 0 product is acquired in Image Mode. The products consist of the SAR telemetry data and are supplied as standard scenes. It also contains all the required auxiliary data necessary for data processing. The product serves two main purposes: For testing ERS SAR processors independently from the HDDR system For users interested in full SAR data processing. Product characteristics: - Scene area: 100 km (range - across track) x full segment length (azimuth - along track) - Scene size: 5616 samples (range) x full segment length (azimuth) - Pixel depth: 10 bits signed integer (5 bits I, 5 bits Q) - Projection: Slant range
ERS-1/2 SAR IM L0 [SAR_IM__0P]
European Space Agency, 2017-2021, ERS-1/2 SAR Image Mode Level 0 Product. IPF version 6.01
Data Service Request
Restrained Data
Data Service Request (Restrained) 1. Go to the _$$ESA User Services Portal$$ 2. Register or log in to EO Sign In 3. After logging in, complete and submit the form 4. The request will be evaluated by ESA, which normally takes up to 2 weeks 5. Upon successful evaluation you will receive a confirmation email, which describes the amount of data to be provided, and details of how to download the data from the _$$Dissemination Service$$
ESA’s (A)SAR On-the-fly (OTF) data processing and dissemination service allows end-users to gain direct access to the (A)SAR archive from the ERS-1, ERS-2 and Envisat Missions. The data is collection based and allows data browse and download through the treeview, filename, as well as via _$$geographical catalogue search$$ http://esar-ds.eo.esa.int/socat/SAR_IM__0P_Scenes based on area of interest and metadata. _$$Interferometric search$$ option is available for relevant collections. Data download is available via HTTPS, including bulk download functionality. ERS products can also be discovered through _$$ESA's EO Catalogue$$ (EO CAT), which allows users to browse and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal). For information on the (A)SAR On-The-Fly service please refer to the _$$OTF User Manual$$ . For further information about the EO Sign In Service you can visit _$$TellUs$$ . Should you need support to access the data, please contact _$$EOHelp$$ .