Introduction to Sentinel Satellite Data

What is Sentinel Satellite Data?

• Sentinel Satellites: A series of Earth observation satellites launched by the European Space Agency (ESA) under the Copernicus program.
• Purpose: To provide comprehensive and high-resolution data for environmental monitoring and disaster management.

Types of Sentinel Satellites

• Sentinel-1:
  • Type: Radar imaging (SAR - Synthetic Aperture Radar).
  • Features: All-weather, day-and-night imaging.
  • Uses: Monitoring land and sea, detecting oil spills, and mapping changes after natural disasters.
• Sentinel-2:
  • Type: Multispectral imaging.
  • Features: High-resolution optical imaging with 13 spectral bands.
  • Uses: Agriculture, forestry, land cover classification, and disaster monitoring.
• Sentinel-3:
  • Type: Ocean and land monitoring.
  • Features: Measures sea surface topography, sea and land surface temperature, and ocean color.
  • Uses: Climate monitoring, marine environment monitoring, and land surface analysis.
• Sentinel-5P:
  • Type: Atmospheric monitoring.
  • Features: Measures air quality, ozone, and trace gases.
  • Uses: Air pollution monitoring and climate research.

Key Features of Sentinel Data

• Free and Open Access: Available to users worldwide at no cost.
• High Resolution: Provides detailed images for precise analysis.
• Regular Revisit Times: Frequent data updates, with some satellites revisiting the same location every few days.