earth online
  • All Categories (1245)
  • Data (12)
  • News (13)
  • Missions (5)
  • Events (5)
  • Tools (5)
  • Activities (6)
  • Documents (1199)
  • Document - General Reference

    prompt photo

    warp5-grid.pdf

    SCIRoCCo WARP 5 Grid

  • Activity - Projects

    prompt photo

    TOLEOS

    The TOLEOS (Thermosphere Observations from Low-Earth Orbiting Satellites) project will produce thermosphere mass density observations from the accelerometer measurements of the GRACE, GRACE-FO, and CHAMP satellites.

  • Document - Proceedings

    prompt photo

    Third ESA International Conference on Spacecraft Guidance, Navigation and Control Systems

    The proceedings from the Third ESA International Conference on Spacecraft Guidance, Navigation and Control Systems, which took place at ESTEC in Noordwijk, the Netherlands, from 26 to 29 November 1996, are presented here.

  • Document - Technical Note

    prompt photo

    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.

  • Tools - Other

    prompt photo

    Swarm-Aurora

    Swarm-Aurora, a web-based tool, was designed to facilitate and drive the use of Swarm in-situ measurements in auroral science.

  • News - Announcement of Opportunity updates

    prompt photo

    Swarm DISC Deadline Extension

    Swarm DISC Invitation to Tender deadline extension for SD-ITT-4.4: Swarm for Space Weather

  • Mission - Earth Explorers

    prompt photo

    Swarm

    Swarm is dedicated to creating a highly detailed survey of Earth’s geomagnetic field and its temporal evolution as well as the electric field in the atmosphere using a constellation of three identical satellites.

  • Document - General Reference

    prompt photo

    SSF-ERS-PM2.pdf

    Surface State Flag from ERS data

  • News - Success Stories

    prompt photo

    Spotlight on sea-level rise

    Scientists to share findings on how satellite has revealed changes in the height of the sea, ice, inland bodies of water and more.

  • Tools - Analysis

    prompt photo

    SNAP

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

  • Data - EO Sign In Authentication (Open)

    prompt photo

    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 - General Reference

    prompt photo

    scirocco-pvr.pdf

    SCIRoCCo Product Validation Report (PVR

  • Document - General Reference

    prompt photo

    scirocco-pum-ts.pdf

    SCIRoCCo PUM-Product User Manual Time-Series Product

  • Document - General Reference

    prompt photo

    scirocco-pum-orbit.pdf

    SCIRoCCo PUM-Product User Manual Orbit Product

  • Document - General Reference

    prompt photo

    scirocco-MTR-KNMI.pdf

    scirocco-MTR-KNMI