LAI estimation of boreal forest with ENVISAT ASAR

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Finnish Meteorological Institute
  • University of Helsinki
  • Finnish Forest Research Institute
  • VTT Technical Research Centre of Finland

Abstract

A method for retrieval of leaf area index (LAI) using ENVISAT ASAR VV/HH polarisation ratio was derived for boreal forests. The swath range from IS1 to IS6 was studied. The W/HH polarization ratio correlated quite well with the ground truth LAI values. The coefficient of determination was 0.76 for the sites when data from all 5 summer images and stands were used without separating between species (or swaths). The respective coefficient of determination was 0.7 for spruce (Picea abies L.) dominated stands and for pine (Pinus sylvestris L.) dominated stands it was even higher.

Details

Original languageEnglish
Article number168
Pages (from-to)1279-1288
Number of pages10
JournalIEEE Transactions on Geoscience and Remote Sensing
Issue number572
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

ID: 7048028