earth online
  • All Categories (63)
  • Data (20)
  • News (15)
  • Missions (4)
  • Events (15)
  • Tools (1)
  • Campaigns (3)
  • Documents (5)
  • News - Success Stories

    prompt photo

    How scientists are unlocking the potential of SAOCOM

    A team of scientists has drawn on SAOCOM data to measure the heights of forests in Argentina, marking the first time that tree canopies have been mapped using the two-satellite constellation.

  • News - Infographics

    prompt photo

    Showcasing the NovaSAR-1 radar satellite

    Learn about the NovaSAR-1 mission in our new infographic.

  • News - Announcement of Opportunity updates

    prompt photo

    ESA encourages S-band applications with NovaSAR-1 Announcement of Opportunity

    ESA is offering possibilities to develop new applications in the S-band microwave frequency range, with a new Announcement of Opportunity for NovaSAR-1 data, via ESA’s Third Party Mission programme.

  • Mission - Third Party Missions

    prompt photo

    NovaSAR-1

    Launched on 16 September 2018, NovaSAR-1 features an S-band synthetic aperture radar (SAR) instrument offering a variety of modes with different resolutions and swath widths.

  • Data - Announcement of Opportunity (Restrained)

    prompt photo

    Announcement of Opportunity for NovaSAR-1

    ESA is launching an Announcement of Opportunity for the international scientific community to access data from the NovaSAR-1 mission for science and EO-based applications development.

  • News - Thematic area articles

    prompt photo

    Tracking the world’s forests from space

    As human activities continue to threaten the planet’s forests, data delivered by satellites are boosting global efforts to conserve these crucial natural resources.

  • News - Spotlight on EO community

    prompt photo

    An overview of the Biomass mission

    In this video, Klaus Scipal - Biomass and SMOS Mission Manager - talks about ESA's upcoming Biomass mission.

  • News - Thematic area articles

    prompt photo

    Monitoring water on Earth's surface

    ESA's Earth observation satellites are playing a leading role in furthering our understanding of how Earth's terrestrial hydrosphere is being influenced by humankind.

  • News - Data Release news

    prompt photo

    New BorealScat campaign dataset released

    A new dataset has been released for the BorealScat campaign, which took place between 2017 and 2021 in Sweden.

  • News - Thematic area articles

    prompt photo

    Global understanding of Earth's land surfaces greatly boosted by satellite data

    ESA perform land surface monitoring with a range of instruments onboard satellites acquiring optical and radar data. Collections of data from these missions are freely available for research purposes.

  • Data - EO Sign In Authentication (Open)

    prompt photo

    PAZ ESA archive

    The PAZ ESA archive collection consists of PAZ Level 1 data previously requested by ESA supported projects over their areas of interest around the world and, as a consequence, the products are scattered and dispersed worldwide and in different time windows. The dataset regularly grows as ESA collects new products over the years. Available modes are: StripMap mode (SM): SSD less than 3 m for a scene 30 km x 50 km in single polarization or 15 km x 50 km in dual polarisation ScanSAR mode (SC): the scene is 100 x 150 km2, SSD less than 18 m in signle pol only Wide ScanSAR mode (WS): single polarisation only, with SS less than 40 m and scene size of 270 x 200 km2 Spotlight modes (SL): SSD less than 2 m for a scene 10 km x 10 km, both single and dual polarization are available High Resolution Spotlight mode (HS): in both single and dual polarisation, the scene is 10x5 km2, SSD less than 1 m Staring Spotlight mode (ST): SSD is 25 cm, the scene size is 4 x 4 km2, in single polarisation only. The available geometric projections are: Single Look Slant Range Complex (SSC): single look product, no geocoding, no radiometric artifact included, the pixel spacing is equidistant in azimuth and in ground range Multi Look Ground Range Detected (MGD): detected multi look product, simple polynomial slant-to-ground projection is performed in range, no image rotation to a map coordinate system is performed Geocoded Ellipsoid Corrected (GEC): multi look detected product, projected and re-sampled to the WGS84 reference ellipsoid with no terrain corrections Enhanced Ellipsoid Corrected (EEC): multi look detected product, projected and re-sampled to the WGS84 reference ellipsoid, the image distortions caused by varying terrain height are corrected using a DEM. The following table summarises the offered product types. EO-SIP product type Operation Mode Geometric Projection Geometric Projection PSP_SM_SSC Stripmap (SM) Single Look Slant Range Complex (SSC) PSP_SM_MGD Stripmap (SM) Multi Look Ground Range Detected (MGD) PSP_SM_GEC Stripmap (SM) Geocoded Ellipsoid Corrected (GEC) PSP_SM_EEC Stripmap (SM) Enhanced Ellipsoid Corrected (EEC) PSP_SC_MGD ScanSAR (SC) Multi Look Ground Range Detected (MGD) PSP_SC_GEC ScanSAR (SC) Multi Look Ground Range Detected (MGD) PSP_SC_EEC ScanSAR (SC) Geocoded Ellipsoid Corrected (GEC) PSP_SC_SSC ScanSAR (SC) Enhanced Ellipsoid Corrected (EEC) PSP_SL_SSC Spotlight (SL) Single Look Slant Range Complex (SSC) PSP_SL_MGD Spotlight (SL) Multi Look Ground Range Detected (MGD) PSP_SL_GEC Spotlight (SL) Geocoded Ellipsoid Corrected (GEC) PSP_SL_EEC Spotlight (SL) Enhanced Ellipsoid Corrected (EEC) PSP_HS_SSC High Resolution Spotlight (HS) Single Look Slant Range Complex (SSC) PSP_HS_MGD High Resolution Spotlight (HS) Multi Look Ground Range Detected (MGD) PSP_HS_GEC High Resolution Spotlight (HS) Geocoded Ellipsoid Corrected (GEC) PSP_HS_EEC High Resolution Spotlight (HS) Enhanced Ellipsoid Corrected (EEC) PSP_ST_SSC Staring Spotlight (ST) Single Look Slant Range Complex (SSC) PSP_ST_MGD Staring Spotlight (ST) Multi Look Ground Range Detected (MGD) PSP_ST_GEC Staring Spotlight (ST) Geocoded Ellipsoid Corrected (GEC) PSP_ST_EEC Staring Spotlight (ST) Enhanced Ellipsoid Corrected (EEC) PSP_WS_SSC Wide ScanSAR (WS) Single Look Slant Range Complex (SSC) PSP_WS_MGD Wide ScanSAR (WS) Multi Look Ground Range Detected (MGD) PSP_WS_GEC Wide ScanSAR (WS) Geocoded Ellipsoid Corrected (GEC) PSP_WS_EEC Wide ScanSAR (WS) Enhanced Ellipsoid Corrected (EEC) As per ESA policy, very high-resolution data over conflict areas cannot be provided.

  • News - Thematic area articles

    prompt photo

    Satellite data boost global understanding of land surface

    Understanding our changing land surface is essential in the study of climate change. Satellites are used to monitor changes to the material that covers Earth’s surface, so-called land cover, such as vegetation and water.

  • Event - Workshop

    prompt photo

    Fringe 1996 Workshop

    The workshop on ERS SAR Interferometry was open to scientists and students working in the field of Synthetic Aperture Radar (SAR) interferometry and its applications.

  • Event - Workshop

    prompt photo

    SEASAR 2008

    The "Advances in SAR Oceanography from Envisat and ERS missions" was a thematic workshop on SAR remote sensing techniques for oceanography.

  • Event - Workshop

    prompt photo

    Aquaculture User Consultation

    The main goal of the workshop was to define a detailed set of user requirements for the future ESA Aquaculture project.

  • News - Success Stories

    prompt photo

    ESA's open source computing project for the Biomass mission goes live

    The Biomass Product Algorithm Laboratory (BioPAL) is an open-source scientific computing project, which supports the development of ESA’s Biomass mission algorithms coded in Python.

  • Mission - Third Party Missions

    prompt photo

    COSMO-SkyMed Second Generation

    COSMO-SkyMed Second Generation is at the forefront of radar technology, will ensure improvements and guarantee continuity with the First Generation CSK satellites, preserving the high quality and the highest precision features, both required for the interferometric activities.

  • News - Success Stories

    prompt photo

    Drone-based Laser Scanning of Tropical Forests for Biomass Cal/Val

    ESA’s upcoming mission Biomass will deliver valuable P-band SAR data aimed at forest aboveground biomass (AGB) estimation across the humid tropics.

  • Data - Data Description

    prompt photo

    Envisat ASAR AP Co- and Cross-polar L0 [ASA_APC/APH/APV_0P]

    The ASAR Alternating Polarization Mode Level 0 (Co-polar and Cross-polar H and V) products contain time-ordered Annotated Instrument Source Packets (AISPs) corresponding to one of the three possible polarisation combinations: HH & HV, VV & VH and HH & VV, respectively. The echo samples in the AISPs have been compressed to 4 bits/sample using FBAQ. This is a high-rate, narrow swath mode, so data is only acquired for partial orbit segments. There are two co-registered images per acquisition and may be from one of seven different image swaths. The Level 0 product was produced systematically for all data acquired within this mode. Data Size: 56-100 km across track x 100 km along track. There are three AP Mode Level 0 products: ASA_APH_0P: The Cross-polar H Level 0 product corresponds to the polarisation combination HH/HV. ASA_APV_0P: The Cross-polar V Level 0 product corresponds to the polarisation combination VV/VH. ASA_APC_0P: The Co-polar Level 0 product corresponds to the polarisation combination HH/VV= H and H received/V transmit and V received.

  • Tools - Other

    prompt photo

    Forestry TEP

    The Forestry Thematic Exploitation Platform (TEP) enables users in the forestry sector to access satellite data based processing services and tools for generating value-added forest information products.