Generating fine resolution leaf area index maps for boreal forests of Finland

Janne Heiskanen, Miina Rautiainen, Lauri Korhonen, Matti Mõttus, Pauline Stenberg

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

5 Citations (Scopus)

Abstract

In addition to global-scale LAI products, higher resolution maps are needed to better depict the spatial heterogeneity of LAI. In this study, we applied empirical and forest reflectance model based LAI estimation methods to generate fine-resolution LAI maps for boreal forests of Finland. The countrywide satellite image mosaics at 25 m resolution for the years 2000 and 2006 were used as input satellite data. The Reduced Simple Ratio (RSR) vegetation index based approach performed better in estimating effective LAI (Le) than forest reflectance model based approach. The final Le estimates were corrected for shoot-level clumping in coniferous and mixed forests according to the land cover maps. The Le estimates show good agreement with LAI field measurements over the modeling sites although the largest values are slightly underestimated. MODIS LAI V005 estimates are higher than the upscaled 1 km resolution forest LAI estimates for 2006.

Original languageEnglish
Title of host publication2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings
Pages2326-2329
Number of pages4
DOIs
Publication statusPublished - 16 Nov 2011
MoE publication typeA4 Article in a conference publication
Event2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Vancouver, BC, Canada
Duration: 24 Jul 201129 Jul 2011

Conference

Conference2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011
CountryCanada
CityVancouver, BC
Period24/07/1129/07/11

Keywords

  • Ecosystems
  • Forestry

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  • Cite this

    Heiskanen, J., Rautiainen, M., Korhonen, L., Mõttus, M., & Stenberg, P. (2011). Generating fine resolution leaf area index maps for boreal forests of Finland. In 2011 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011 - Proceedings (pp. 2326-2329). [6049675] https://doi.org/10.1109/IGARSS.2011.6049675