Introduction to multispectral Earth observation

Introduction

• About & Disclaimer

Contents

• 1. Main characteristics of optical satellites
  • 1.1. Remote sensing, Earth observation and GIS
  • 1.2. Satellites for Earth observation
    • 1.2.1. Satellite orbits and revisit time
    • 1.2.2. Digital images and the EM spectrum
    • 1.2.3. Spectral characteristics
    • 1.2.4. Spatial resolution and area coverage
  • 1.3. Copernicus and the Sentinels
    • 1.3.1. The Copernicus programme
    • 1.3.2. Multispectral Sentinel satellites
• 2. Principles of image analysis
  • 2.1. The spectral signature
    • 2.1.1. What is a spectral signature
    • 2.1.2. Land cover vs land use
    • 2.1.3. Spectral signatures of the main macro land cover classes
    • 2.1.4. How to measure spectral signatures with satellites
    • 2.1.5. How to compare spectral signatures
  • 2.2. Spectral indices for environmental monitoring
    • 2.2.1. What is a spectral index
    • 2.2.2. How spectral indices are designed
  • 2.3. Automatic land cover mapping
    • 2.3.1. Supervised image classification
    • 2.3.2. Classification strategies
• 3. Free and open Copernicus satellite images
  • 3.1. Sentinel Hub EO Browser
    • 3.1.1. How to select the correct products with Sentinel Hub EO Browser
    • 3.1.2. How to view the satellite images with Sentinel Hub EO Browser
    • 3.1.3. How to download the data with Sentinel Hub EO Browser
  • 3.2. Some alternative repositories

Supplementary materials

• Map validation
  • Precision or accuracy?
  • How much is accurate a map?
• Examples

Info

• The author
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