Blar i Skog og landskap, Rapport på forfatter "Breidenbach, Johannes"
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Comparison of a photogrammetric canopy height model (CHM) with a lidar derived CHM in Vestfold county
Breidenbach, Johannes (Chapter, 2011)Digital aerial images over Vestfold county were acquired by TerraTec in summer 2007 with a Vexcel UltraCamX sensor. The flying height above-ground was approximately 2800-3000 m which resulted in images of approximately ... -
Creation of digital elevation models from aerial images for forest monitoring purposes. Proceedings, 9. June 2011, Ås, Norway
Breidenbach, Johannes; Astrup, Rasmus Andreas (Rapport fra Skog og landskap;16/2011, Research report, 2011)Vegetation height information is one of the most important variables for predicting forest attributes such as timber volume and biomass. Although airborne laser scanning (ALS) data are operationally used in forest planning ... -
Extracting data for single trees from photogrammetric canopy height models and true orthophotographs
Solberg, Svein; Breidenbach, Johannes (Chapter, 2011)Top dieback and mortality of Norway spruce is a particular forest damage that has severe occurrences in scattered forest stands in southeast Norway. As a part of a project to study the extent and causes of the damage we ... -
Small area estimation of forest attributes in the Norwegian National Forest Inventory
Breidenbach, Johannes; Astrup, Rasmus Andreas (Chapter, 2011)The Norwegian National Forest Inventory (NNFI) provides estimates of forest parameters on national and regional scales by means of a systematic network of permanent sample plots. One of the biggest challenges for the NNFI ...