Blar i USN Open Archive på forfatter "Kastdalen, Leif"
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Evaluating in-riverscapes: Remote sensing green LiDAR efficiently provides accurate high-resolution bathymetric maps, but is limited by water penetration
Kastdalen, Leif; Heggenes, Jan (Publication series from University of South-Eastern Norway;112, Report, 2023)This report investigates the feasibility of using Airborne green LiDAR Bathymetry to map the topography of in-riverscapes. First, the accuracy of remote sensing green LiDAR data are compared with the alternative in situ ... -
Optimal foraging by a large ungulate in an extreme environment: Wild mountain reindeer select snow-free feeding habitats in winter
Romtveit, Lena; Strand, Olav; Mossing, Anders; Kastdalen, Leif; Hjeltnes, Arne William; Bjerketvedt, Dag Kjartan; Odland, Arvid; Heggenes, Jan (Journal article; Peer reviewed, 2021)Optimal foraging models predict that individual animals will optimize net energy gain by intensifying forage activity and/or reducing forage energy cost. Then, the free distribution model predicts an animal's distribution ... -
Vegetasjonskartlegging med satellittdata. Optimalisering av analysemetodikk
Kastdalen, Leif; Hjeltnes, Arne (HiT skrift, Research report, 2013-01-18)ENGLISH SUMMARY: This study highlights the benefits of carrying out an optimization of the analytical process in land cover mapping from satellite data. The report describes the optimization of the different steps in a ... -
Wild Mountain reindeer Rangifer tarandus tarandus winter foraging: snow-free areas a key resource for feeding
Holtan, Marijanne; Strand, Olav; Kastdalen, Leif; Bjerketvedt, Dag Kjartan; Odland, Arvid; Pape, Roland; Heggenes, Jan (Peer reviewed; Journal article, 2023)In a landscape with patchily distributed forage resources, an animal’s distribution may reflect the distribution of the resources if the population is forage-limited in time or space. This may be particularly explicit in ...