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Conference paper2009Peer reviewed

Mapping and monitoring clear-cuts in Swedish forest using ALOS PALSAR satellite images

Pantze, Andreas; Krantz, Anders H.; Fransson, Johan; Olsson, Håkan; Santoro, Maurizio; Eriksson, Leif E.B.; Ulander, Lars M.H.

Abstract

This study presents results for observing forest changes in Sweden using multi-temporal L-band satellite data and is a part of the JAXA's ALOS Kyoto and Carbon Initiative. An extensive dataset of images acquired by the Advanced Land Observing Satellite Phased Array type L-band Synthetic Aperture Radar (ALOS PALSAR) is investigated for clear-cut detection in boreal forests in northern Sweden (Lat. 64 degrees 14' N, Long. 19 degrees 50' E). Strong forest/non-forest contrast and temporal consistency were found for the Fine Beam Dual HV-polarized backscatter during unfrozen conditions. Thus, a simple thresholding algorithm that exploits the temporal consistency of pair-wise HV-backscatter measurements has been developed for clear-cut detection. When applied to an image pair acquired during favorable weather conditions, the detection algorithm identified 76% of the clear-cut pixels within a reference layer, with zero erroneously detected pixels. With further refinement the developed methodology can be an option to present operational alternatives for clear-cut detection.

Published in

IEEE International Geoscience and Remote Sensing Symposium proceedings
2009, pages: 1891-1894
ISBN: 978-1-4244-3394-0
Publisher: IEEE

Conference

IEEE International Geoscience and Remote Sensing Symposium

      SLU Authors

          • Sustainable Development Goals

          SDG15 Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification, and halt and reverse land degradation and halt biodiversity loss

          UKÄ Subject classification

          Forest Science
          Environmental Sciences related to Agriculture and Land-use

          Publication identifier

          DOI: https://doi.org/10.1109/IGARSS.2009.5417826

          Permanent link to this page (URI)

          https://res.slu.se/id/publ/28260