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Introduction to Sentinel Satellites

Introduction to Sentinel Satellites
Thursday, July 2, 2020, 9:30 am – 12:30 pm

The webinar series "Bridging ICTs and Environment" will be held featuring online presentations by representatives of key global stakeholders in data-driven decision-making in Disaster Risk Reduction, Water Security and other SDG-relevant issues.

July 2, 9:30am-12:30pm CET - Introduction to Sentinel satellites by Pablo Vega (Copernicus, European Union Satellite Centre)


This didactical unit is targeted at non-EO experts. It helps professional profiles without EO expertise to understand how the Copernicus Programme Sentinel satellites can help them.


  • Understand how satellites orbit earth and how that impacts acquisition parameters which have an impact on the acquired imagery (nadir and acquisition angle, revisit time).
  • Understand how electrooptical sensors operate and what is the electromagnetic spectrum. Review the possible image parameters (spatial resolution, spectral resolution).
  • Understand how to download, open and work with a satellite image to provide an answer in a given scenario applying basic change detection and multispectral analysis.