Contents

• Introduction
• Algorithms and tie-point selection
  • Algorithms
    • AES algorithm
    • NORSEX algorithm
    • Comiso (polarization) algorithm
    • Comiso (frequency) algorithm
    • NASA algorithm
  • Tie-point selection
• Algorithm comparison
  • Total ice concentration in January and February 1993
  • Multi-year ice fraction in January and February 1993
  • Algorithm sensitivity to physical temperature
  • Algorithm sensitivity to measurement noise
• Discussion and conclusions
• References
• About this document ...