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Bilko Module 7

10. Assessing mangrove leaf-area index (LAI) using CASI airborne imagery

Author: Dr Alasdair J.Edwards, University of Newcastle, UK.

Aim of Lesson

mangrove leaf area index image

To learn how to assess and map mangrove leaf-area index (LAI) using Compact Airborne Spectrographic Imager (CASI) imagery as an example.

Learning Objectives

  1. To understand what field survey of the mangroves is necessary to calibrate imagery and allow Leaf-Area Index (LAI) to be estimated.
  2. To understand how LAI data is derived from field measurements.
  3. To learn how to prepare a Normalised Vegetation Difference Index (NDVI) of mangrove areas from CASI imagery
  4. To investigate the relationship between NDVI and LAI using UTM coordinate referenced field survey data and use this relationship to create an image of mangrove Leaf Area Index.
  5. To learn how to create a palette to display mangrove LAI effectively.
  6. To calculate net canopy photosynthetic production from

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