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- Data (14)
- News (22)
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- Events (12)
- Tools (6)
- Activities (3)
- Documents (1236)
News - Thematic area articles
Transforming space data into climate action
ESA’s Earth observation activities are playing a key role in the revitalised global drive to combat climate change.
Document - User Guide
Third Party Missions, Cat-1 Data Availability
This brochure gives a quick overview on the availability of the Third Party Missions IRS-P3, JERS-1, NIMBUS, Proba, Landsat, KOMPSAT-1, SCISAT-1, Terra/Aqua, NOAA, QSCAT, OrbView, SPOT-1,-2,-3,-4, ALOS.
Document - Technical Note
The RA-2 On-Board Tracker and its Autonomous Adaptable Resolution
This technical note describes the complete functionality of the RA-2 on-board Tracker and how its Resolution Selection Logic (RSL) works. It gives a detailed analysis of the algorithm and its configuration parameters.
Document - General Reference
The Envisat Radar Altimeter System (RA-2)
This article was published in the ESA Bulletin Nr. 98 and givesdetails on RA-2 and on its role in the ENVISAT mission.
Document - General Reference
The Earth from ALOS - New Perspectives from Space including 3D
This brochure gives an example of the ALOS spectacular scenes, 3D pictures and general info on the satellite applications.
Document - Proceedings
The contribution of the European Space Agency to the ALOS PRISM- AVNIR-2 commissioning phase
This paper was presented at IGARSS 2007 (23-27 July 2007 - Barcelona, Spain). It summarizes the strategy that ESA adopted to define and implement a data verification plan for mission operated by foreign nations, classified as so called ESA Third Party Missions.
Document - General Reference
Taking-the-Measure-of-Earth-Fifteen-Years-of-Progress-in-Radar-Altimetry.pdf
This article is extracted from ESA Bulletin Nr. 128.
News - Data Release news
Static Maps for ALOS African coverage available for users
ALOS Africa is a dataset of the best available (cloud minimal, below 10%) African coverage acquired by AVNIR-2 in OBS mode and PRISM in OB1 mode (all Backward, Nadir and Forward views, in separated products), two different collections one for each instrument.
Tools - Analysis
SNAP
SNAP is a common architecture for all Sentinel Toolboxes. It is ideal for Earth observation processing and analysis.
Tools - Analysis
Sentinel-3 Toolbox
The Toolbox consists of a set of visualisation, analysis and processing tools for the exploitation of OLCI and SLSTR data.
Data - EO Sign In Authentication (Open)
Sea Ice Thematic Data Product [ALT_TDP_SI]
This is the Sea Ice Thematic Data Product (TDP) V1 resulting from the ESA FDR4ALT project 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). 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.
Document - Conference Presentation - Poster
Remaining-East-West-bias-explained.pdf
This presentation shows the results obtained from a scientific assessment on the use of GDR-D improved orbit standard and of the consequent improvement in the Sea Surface Height and Sea Level Anomaly Data of altimeter GDR data (A. Ollivier, OSTST 2011).
Document - Publication - Paper
RA-2-S-Band-anomaly-detection-and-waveforms-reconstruction.pdf
This paper describes the algorithm developed for the L1b processor that allows to set a flag identifying the data affected by the S-Band anomaly and reconstruct normal echo waveforms.
Document - Product Cal/Val Plan/Report
RA-2-In-Flight-Instrument-Calibration-and-Level-1b-Verification-Plan.pdf
This document describes the plan for the RA-2 In-flight Instrument Calibration and Level lb Verification procedures.
Document - Proceedings
PolInSAR-2007-Proceedings-of-the-3rd-International-Workshop-on-Science-and-Applications-of-SAR-Polarimetry-and-Polarimetric-Interferometry.pdf
Proceedings of PolInSAR 2007 held in Frascati, Italy on from 22-26 January 2007.
