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
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 _$$EOHelp$$ .
World Wide
European Space Agency, 2023, FDR4ALT Atmospheric Thematic Data Product. Version 1.0.
EARTH SCIENCE>ATMOSPHERE
ENVISAT
RA
MWR
Atmosphere
Sun-synchronous
Radar Altimeters
Imaging Spectrometers/Radiometers
Envisat
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

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.

This data set is conformant with the INSPIRE Implementing Rules for the interoperability of spatial data sets and services
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
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 _$$EOHelp$$

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

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the European Alps.
ERS SAR & Envisat ASAR Alps mountains - L1 (IM/AP)
European Space Agency, 2025, ERS SAR & Envisat ASAR Alps mountains - 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>HUMAN DIMENSIONS>NATURAL HAZARDS
EARTH SCIENCE>AGRICULTURE>SOILS
EARTH SCIENCE>TERRESTRIAL HYDROSPHERE
ASAR
Agriculture
Biosphere
Coastal Processes
Human Dimensions
Natural Hazards and Disaster Risk
Soils
Terrestrial Hydrosphere
ERS-1, ERS-2: SAR_IMP_1P
Envisat: ASA_IMP_1P, ASA_APP_1P
Envisat: 800 km
ERS-1, ERS-2: 5 km
Envisat 5 – 1150 km

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 _$$EOHelp$$

The JERS-1 Optical System (OPS) is composed of a Very Near Infrared Radiometer (VNIR) and a Short Wave Infrared Radiometer (SWIR). The instrument has 8 observable spectral bands from visible to short wave infrared. Data acquired by ESA ground stations The JERS-1 OPS products are available in GeoTIFF format. These products are available only for the VNIR sensor. All four bands are corrected. The correction consists in a vertical and horizontal destriping, the radiometry values are expanded from the range [0,63] to the range [0,255]. No geometrical correction is applied on level 1. The pixel size of approximately 18 x 24.2 metres for raw data is newly dimensioned to 18 x 18 metres for System Corrected data using a cubic convolution algorithm. Disclaimer: Cloud coverage for JERS OPS products has not been computed using an algorithm. The cloud cover assignment was performed manually by operators at the acquisition stations. Due to missing attitude information, the Nadir looking band (band 3) and the corresponding forward looking band (band 4) are not well coregistered, resulting in some accuracy limitations. The quality control was not performed systematically for each frame. A subset of the entire JERS Optical dataset was selected and manually checked. As a result of this, users may occasionally encounter issues with some of the individual products.
JERS-1 OPS (Optical Sensor) Very Near Infrared Radiometer (VNIR) System Corrected Products level 1
Utilisation of this data is subject to the Terms and Conditions for ESA's Third Party Missions scheme
conditions to access and use unknown
European Space Agency, 2018, JERS-1 Optical Sensor Very Near Infrared Radiometer System Corrected Products. Version 1.0.
EARTH SCIENCE>OCEANS>OCEAN WAVES
EARTH SCIENCE>CRYOSPHERE>GLACIERS/ICE SHEETS
OPS
Ocean Waves
Glaciers and Ice Sheets
High Resolution - HR (5 - 20) m
75 km
Photon/Optical Detectors
Open Data
EO Sign In Authentication (Open) 1. Go to the _$$Dissemination Service$$ https://tpm-ds.eo.esa.int/oads/access/collection/JERS1-SYC 2. Find the product you want via a map 3. Register or log in to EO Sign In 4. Download
In the Optical Online _$$Dissemination Service$$ https://tpm-ds.eo.esa.int/socat/JERS1-SYC and catalogue the data is collection based and allows data browse and download through the treeview as well as via geographical search using an interactive map. JERS-1 products can also be discovered through _$$ESA's EO Catalogue (EO CAT) which allows users to discover and download products among the available datasets from ESA and Third Party Missions and instruments, using various criteria (spatial, temporal, specific). New users can register an account on EO Sign In. For further information about the EO Sign In Service you can visit _$$TellUs$$ ESA internal users can use their ESAAD account. Should you need support to access the data, please contact _$$EOHelp$$

Thematic collection: Bulk processed ERS-1/2 SAR IMP and Envisat ASAR IMP/APP Precision Level 1 products covering the Pyrenees mountains
ERS SAR & Envisat ASAR Pyrenees mountains - L1 (IM/AP)
European Space Agency, 2025, ERS SAR & Envisat ASAR Pyrenees mountains - L1 (IM), Version 1.0.
ERS-1, ERS-2: SAR_IMP_1P
Envisat: ASA_IMP_1P, ASA_APP_1P
Envisat 5 – 1150 km

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]
Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions
European Space Agency, 2019, ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI], Version ASPS v10.04.
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WINDS
ERS WIND SCATTEROMETER
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 _$$EOHelp$$