earth online
  • All Categories (109)
  • Data (4)
  • News (26)
  • Missions (3)
  • Events (8)
  • Tools (11)
  • Activities (3)
  • Documents (54)
  • Event - Meeting

    prompt photo

    VH-RODA and CEOS SAR workshop

    The workshop provided an open forum for the presentation and discussion of current status and future developments related to the calibration and validation of space borne very high-resolution SAR and optical sensors and data products.

  • Event - Workshop

    prompt photo

    VH-RODA 2021 Workshop

    The Very High-resolution Radar & Optical Data Assessment (VH-RODA) 2021 workshop was held online from 20–23 April 2021.

  • Tools - Other

    prompt photo

    Urban TEP

    The Urban Thematic Exploitation Platform enables access, processing, uploading, visualisation, manipulation and comparison of data over urban areas.

  • Document - User Guide

    prompt photo

    TPM-L-OADS-dissemination-service-User-Manual.pdf

    This guide describes the Third Party Missions Dissemination System.

  • Document - General Reference

    prompt photo

    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.

  • News - Success Stories

    prompt photo

    The Earthnet Programme: 40 years of evolution and future challenges

    ESA's Earthnet Programme provided the initial means to access and exploit Earth Observation data.

  • Document - Technical Note

    prompt photo

    Technical Note on Quality Assessment for PAZ

    Technical Note on Quality Assessment for PAZ

  • Document - Technical Note

    prompt photo

    Technical Note on PAZ-TSX-CSK Intercomparison Quality Assessment

    Technical Note on PAZ-TSX-CSK Intercomparison Quality Assessment

  • Tools - Analysis

    prompt photo

    SNAP

    SNAP is a common architecture for all Sentinel Toolboxes. It is ideal for Earth observation processing and analysis.

  • News - Success Stories

    prompt photo

    Showcasing success stories from ESA's Third Party Missions

    ESA’s Third Party Missions programme consists of more than 50 missions from around the world.

  • Tools - Analysis

    prompt photo

    Sentinel-3 Toolbox

    The Toolbox consists of a set of visualisation, analysis and processing tools for the exploitation of OLCI and SLSTR data.

  • Tools - Analysis

    prompt photo

    Sentinel-2 Toolbox

    The Toolbox consists of a rich set of visualisation, analysis and processing tools for the exploitation of optical high-resolution products including the Sentinel-2 MSI sensor.

  • Tools - Analysis

    prompt photo

    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 - Success Stories

    prompt photo

    Satellite data allows real-time detection of potential fires

    A pilot Fire Detection Service, based on real-time processing of Landsat-8 data being assessed within the framework of ESA's Earthnet Programme.

  • News - Data Release news

    prompt photo

    Sample data products from ESA’s Third Party Missions

    Samples of data products from a range of Third Party Missions are now available to download, offering a preview of what these missions provide.

  • Activity - Cal/Val activities

    S2L8VegStruc

    The Retrieval of vegetation structural variables from Sentinel-2/Landsat 8 time series study's objective is to test and validate the capabilities for the retrieval of structural variables.

  • Document - Technical Note

    prompt photo

    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.

  • Data - Sample Data (Open)

    prompt photo

    PAZ Sample Data

    Download free PAZ sample datasets to preview products available for this mission.

  • Data - Project Proposal (Restrained)

    prompt photo

    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 - Data Release news

    prompt photo

    PAZ ESA archive now open to users

    The PAZ ESA archive collection is now freely available for researchers worldwide through ESA's Third Party Missions programme.