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- News (16)
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- Events (1)
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- Activities (1)
- Documents (6)
Document - Conference Presentation - Poster
2_ppt_POLINSAR2013_dmonells_std.pdf
Performance Comparison between Dual Polarimetric and Fully Polarimetric data for DInSAR Subsidence monitoring D. Monells [Universitat Politecnica de Catalunya, UPC - Spain]
Document - Conference Presentation - Poster
EO-Summer-School-5-Poster-SEOSAR-PAZ-SAR-Mission-Panel-Design-and-Performance.pdf
This poster from ESA's EO Summer School 5 is about the SEOSAR/PAZ SAR Mission: Panel design and performance
Tools - Analysis
SNAP
SNAP is a common architecture for all Sentinel Toolboxes. It is ideal for Earth observation processing and analysis.
Activity - Quality
EDAP
The ESA Earthnet Data Assessment Pilot (EDAP) project will perform assessments for various missions to ensure the delivered data is fit for purpose.
Mission - Third Party Missions
PAZ
The PAZ (Spanish for “peace”) satellite, operates as a constellation alongside TerraSAR-X and TanDEM-X.
Tools - Analysis
Sentinel-1 Toolbox
The Toolbox consists of: processing tools, data product readers and writers and a display and analysis application to support the archive of SAR data from ESA and 3rd party missions.
News - General News
PAZ data now available to users worldwide
ESA is pleased to announce the availability of the PAZ satellite products to the scientific community, for R&D activities and start-ups.
Data - Project Proposal (Restrained)
PAZ Full Archive and New Tasking
PAZ Image Products can be acquired in eight image modes with flexible resolutions (from 1 m to 40 m) and scene sizes. Thanks to different polarimetric combinations and processing levels the delivered imagery can be tailored specifically to meet the requirements of the application. Available modes are: StripMap mode (SM): in single and dual polarisation: The ground swath is illuminated with a continuous train of pulses while the antenna beam is pointed to a fixed angle, both in elevation and in azimuth. ScanSAR mode (SC): in single polarisation: the swath width is increased in respect to the StripMap mode, it is composed of four different sub-swaths, which are obtained by antenna steering in elevation direction Wide ScanSAR mode (WS), in single polarisation: the usage of six sub-swaths allows to obtain a higher swath coverage product Spotlight modes: in single and dual polarisation: Spotlight modes take advantage of the beam steering capability in the azimuth plane to illuminate for a longer time the area of interest: a sensible improvement of the azimuth resolution is achieved at the expense of a shorter scene size. Spotlight mode (SL) is designed to maximise the azimuth scene extension at the expense of the spatial resolution, and High Resolution Spotlight mode (HS) is designed to maximize the spatial resolutions at the expense of the scene extension. Staring Spotlight mode (ST), in single polarisation: The virtual rotation point coincides with the center of the beam: the image length in the flight direction is constrained by the projection on-ground of the azimuth beamwidth and it leads to a target azimuth illumination time increment and to achieve the best azimuth resolution. There are two main classes of products: Spatially Enhanced products (SE): Designed with the target of maximize the spatial resolution in pixels with squared size, so the larger resolution value of azimuth or ground range determines the square pixel size, and the smaller resolution value is adjusted to this size and the corresponding reduction of the bandwidth is used for speckle reduction. Radiometrically Enhanced products (RE): Designed with the target of maximize the radiometry, so the range and azimuth resolutions are intentionally decreased to significantly reduce speckle by averaging several looks. The following geometric projections are offered: Single Look Slant Range Complex (SSC): Single look product of the focused radar signal: the pixels are spaced equidistant in azimuth and in slant range. No geocoding is available, no radiometric artifacts included. Product delivered in the DLR-defined binary COSAR format. The SSC product is intended for applications that require the full bandwidth and phase information, e.g. for SAR interferometry and polarimetry. Multi Look Ground Range Detected (MGD): Detected multi look product in GeoTiff format with reduced speckle and approximately square resolution cells on ground. The image coordinates are oriented along flight direction and along ground range; the pixel spacing is equidistant in azimuth and in ground range. A simple polynomial slant to ground projection is performed in range using a WGS84 ellipsoid and an average, constant terrain height parameter. No image rotation to a map coordinate system is performed and interpolation artifacts are thus avoided. Geocoded Ellipsoid Corrected (GEC): Multi look detected product in GeoTiff format. It is projected and re-sampled to the WGS84 reference ellipsoid assuming one average terrain height. No terrain correction performed. UTM is the standard projection, for polar regions UPS is applied. Enhanced Ellipsoid Corrected (EEC): Multi look detected product in GeoTiff format. It is projected and re-sampled to the WGS84 reference ellipsoid. The image distortions caused by varying terrain height are corrected using an external DEM; therefore the pixel localization in these products is highly accurate. UTM is the standard projection, for polar regions UPS is applied. StripMap Single StripMap Dual ScanSAR Wide ScanSAR Spotlight Single Spotlight Dual HR Spotlight Single HR Spotlight Dual Staring Spotlight Mode ID SM-S SM-D SC WS SL-S SL-D HS-S HS-D ST Polarizations HH, VV, HV, VH HH/VV, HH/HV, VV/VH HH, VV, HV, VH HH, VV, HV, VH HH, VV, HV, VH HH/VV, HH/HV, VV/VH HH, VV, HV, VH HH/VV, HH/HV, VV/VH HH, VV, HV, VH Scene size (Range x Azimuth) [km] 30 x 50 15 x 50 100 x 150 [273-196] x 208 10 x 10 10 x 10 10-6 x 5 (depending on incident angle) 10 x 5 [9-4.6] x [2.7-3.6] Range Resolution [m] MGD, GEC, EEC (SE)[Ground range] 2.99 - 3.52 at (45° - 20°) 6 N/A N/A 1.55 - 3.43 at (55° - 20°) 3.09 - 3.5 at (55° - 20°) 1 - 1.76 at (55° - 20°) 2 - 3.5 at (55° - 20°) 0.96 -1.78 at (45°- 20°) MGD, GEC, EEC (RE) [Ground range] 6.53 - 7.65 at (45° - 20°) 7.51 - 10.43 at (45° - 20°) 16.79 - 18.19 at (45° - 20°) 35 3.51 - 5.43 at (55° - 20°) 4.98 - 7.63 at (55° - 20°) 2.83 - 3.11 at (55° - 20°) 4 - 6.2 at (55° - 20°) 0.97 - 1.78 at (45°-20°) SSC[Slant range] 1.1 (150 MHz bandwidth) 1.7 (100 MHz bandwidth) 1.18 1.17 - 3.4 (depending on range bandwidth) 1.75 - 3.18 (depending on range bandwidth) 1.18 1.17 0.6 1.17 0.59 Azimuth Resolution [m] MGD, GEC, EEC (SE) 3.05 6.11 N/A N/A 1.56 - 2.9 at (55° - 20°) 3.53 1 - 1.49 at (55 °- 20°) 2.38 - 2.93 at (55° - 20°) 0.38 - 0.7 at (45°-20°) MGD, GEC, EEC (RE) 6.53 - 7.60 at (45° - 20°) 7.52 - 10.4 at (45° - 20°) 17.66 - 18.18 at (45° - 20°) 39 3.51 - 5.4 at (55° - 20°) 4.99 - 7.64 at (55° - 20°) 2.83 - 3.13 at (55° - 20°) 4 - 6.25 at (55° - 20°) 0.97 - 1.42 at (45°-20°) SSC 3.01 6.04 18.5 38.27 1.46 3.1 1.05 2.16 0.22 As per ESA policy, very high-resolution data over conflict areas cannot be provided.
News - General News
ESA’s Earth Observation Catalogue and its services
EO-CAT is the EO Catalogue tool allowing users to search ESA and Third Party Mission collections.
News - General News
ESA's new DataCube service is now available
ESA is pleased to announce the deployment of a new service, called ESA PDGS-DataCube, enabling multi-temporal and pixel-based access to a subset of the data available in the European Space Agency dissemination services.
Document - Technical Note
PAZ-Data-Terms-Of-Applicability.pdf
This document contains the Terms of Applicability and Terms and Conditions for accessing the Third Party Mission PAZ data.
News - Infographics
ESA Third Party Missions timeline
We've released a new timeline to illustrate the history of the ESA Third Party Missions.
News - Infographics
An overview of ESA's Third Party Missions programme
ESA’s Third Party Missions programme consists of almost 50 satellite missions, which are owned by organisations around the world. ESA has agreements with these organisations to acquire, process, and distribute data from their missions
News - Data Release news
New imaging modes added to PAZ collection
Two new imaging modes, Wide ScanSAR and Staring Spotlight, have been added to the PAZ offering and are now available to users for research and application development following submission of a project proposal subject to evaluation and acceptance by ESA and the data owner.
Document - Technical Note
Technical Note on Quality Assessment for PAZ
Technical Note on Quality Assessment for PAZ
News - Infographics
An overview of the PAZ SAR satellite mission
Learn more about the PAZ mission, a Spanish X-Band SAR satellite and part of ESA's Third Party Missions programme, in our latest infographic.
News - Success Stories
PAZ - Spain's radar success
One way of collecting images in unfavourable weather is to use Synthetic Aperture Radar (SAR). PAZ is one such Earth observation mission capable of delivering all-weather imagery thanks to its X-band SAR.
News - Success Stories
New open-source Python library improves rapid mapping services
In emergency services, rapid response is paramount. ICube-SERTIT’s Rapid Mapping Service provides near real-time delivery of geo-information to help emergency services respond quickly to disasters such as flooding, fires and landslides. A new Python open-source library, called EOReader, speeds up this mapping response by enabling the easy opening of imagery from multiple satellite sensors, both optical and synthetic aperture radar (SAR).
Document - Technical Note
Technical Note on PAZ-TSX-CSK Intercomparison Quality Assessment
Technical Note on PAZ-TSX-CSK Intercomparison Quality Assessment
Document - General Reference
Third Party Missions Brochure
This brochure summarises ESA's Third Party Missions programme, providing a timeline and examples of content related to some of the missions.