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Easy visualisation of Earth observation data with new HEDAVI tool modes
The Discover mode in HEDAVI showcases the usefulness of Earth Observation (EO) data in a variety of applications through a list of case-studies—so-called “stories”. The first new feature allows users to share links to the stories in HEDAVI. The second new feature allows them to export any image of a case-study from the Discover mode to the Explorer mode.
ALOS Dissemination Service - scheduled Maintenance on 23 May 2024
A software maintenance activity has been scheduled for ALOS Dissemination services on Thursday 23 May 2024 from 07:30 to 08:30 UTC.
HEDAVI Discover: a step-by-step guide
The Heritage Data Visualisation tool (HEDAVI) is a platform developed by the French Science Consulting for Earth Observation group, VisioTerra, which allows users to freely access over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.
ESA EO Dissemination Services - Maintenance on 25 and 26 March 2024
Scheduled software maintenance on ESA EO Dissemination Services on 25 and 26 March 2024
Go-to guide to Third Party Mission data offering
ESA’s latest Third Party Missions Data Access Guide has been published, providing technical details and information on available data collections for all current or past Third Party Missions.
How do I access the ESA Third Party Mission (TPM) data?
Access ESA Third Party Mission (TPM) data by applying with 'Fast Registration with Immediate Access' or 'Fast Registration with Approval.
How do I access the ALOS data services?
Access ALOS PALSAR and Optical data by registering on the respective data description page.
How to find the geographical and temporal coverage of the ESA TPM archive collections
Explore the ESA TPM archive collections, containing Earth Observation data from international partners, and learn how to discover their geographical and temporal coverage for research and pre-operational applications.
What is the ESA online On-The-Fly dissemination service?
Explore ESA's On-The-Fly dissemination service (L-OADS), featuring Third Party Missions and ESAR products enabling immediate downloads upon request with a valid EO Sign-In account.
What quality issues apply to the (A)SAR and ALOS PALSAR data?
Information on quality issues related to (A)SAR data, including specific disclaimers for Envisat ASAR and ALOS PALSAR products.
What are the Terms of Applicability?
Essential information about data ordering, accessibility conditions, and distribution constraints for TPM EO data.
Discover Earth like never before: the HEDAVI tool
The Heritage Data Visualisation tool, or HEDAVI, enables the analysis of global spatio-temporal dynamics of natural and artificial environments, covering over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.
ALOS PRISM L1C
This collection provides access to the ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C data acquired by ESA stations (Kiruna, Maspalomas, Matera, Tromsoe) in the ADEN zone, in addition to worldwide data requested by European scientists. The ADEN zone was the area belonging to the European Data node and covered both the European and African continents, a large part of Greenland and the Middle East. The full mission archive is included in this collection, though with gaps in spatial coverage outside of the ADEN zone. With respect to the L1B collection, only scenes acquired in sensor mode with a Cloud Coverage score lower than 70% and a sea percentage lower than 80% are published: Orbits: from 2768 to 27604 Path (corresponds to JAXA track number): from 1 to 665 Row (corresponds to JAXA scene centre frame number): from 310 to 6790. The L1C processing strongly improve accuracy compared to L1B1 from several tenths of metres in L1B1 (~40 m of northing geolocation error for Forward views and ~10-20 m for easting errors) to some metres in L1C scenes (< 10 m both in north and easting errors). The collection contains only the PSM_OB1_1C EO-SIP product type, using data from PRISM operating in OB1 mode with three views (Nadir, Forward, and Backward) at 35 km wide. Most of the products contain all three views, but the Nadir view is always available and is used for the frame number identification. All views are packaged together; each view, in CEOS format, is stored in a directory named according to the JAXA view ID naming convention.
Cloud-free collections key for land monitoring
Satellite imagery is a crucially important tool for monitoring the land, but cloud cover can often block parts of Earth’s surface from view, limiting subsequent analyses.
ALOS PRISM L1C European Coverage Cloud Free data collection now available for users
As part of Earthnet’s Third Party Missions Programme framework, ESA is pleased to announce that the ALOS PRISM L1C European Coverage Cloud Free data collection is now available for research purposes.
ALOS PRISM L1C European Coverage Cloud Free
This collection is composed of a subset of ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C products from the ALOS PRISM L1C collection (DOI: 10.57780/AL1-ff3877f) which have been chosen so as to provide a cloud-free coverage over Europe. 70% of the scenes contained within the collection have a cloud cover percentage of 0%, while the remaining 30% of the scenes have a cloud cover percentage of no more than 20%. The collection is composed of PSM_OB1_1C EO-SIP products, with the PRISM sensor operating in OB1 mode with three views (Nadir, Forward and Backward) at 35 km width.
Meet the Quality Assurance for EO Team
The Quality Assurance For Earth Observation (also known as QA4EO) Service began its operations on 1 November 2019, providing support to the Data Quality and Algorithms Management Office at ESRIN, within the Sensor Performance, Processing and Algorithm section.
International collaboration: Summarising ESA’s Third Party Missions
ESA’s Third Party Missions programme consists of more than 50 missions from around the world. Learn more about the Third Party Missions in this video.
Long-term data: Summarising ESA’s Heritage missions
ESA’s Heritage Space Programme preserves data from non-operational missions. Learn more about the Heritage missions in this video.
ALOS PRISM Level 1C data collection now available for users
ESA offers registered users access to the ALOS PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C data acquired by ESA ground stations in the ADEN zone, plus some worldwide data requested by European scientists.