Khamarrul A. Razak (1,2), Alexander Bucksch (3,4), Michiel Damen (1), Cees van Westen (1), Menno Straatsma (1), Steven de Jong (5)
نویسندگان
چکیده
Disrupted vegetation is often used as an indicator for landslide activity in forested regions. The extraction of irregular trees from airborne laser scanning data remains problematic because of low quality of observed data and paucity of field data validation. We obtained high density airborne LiDAR (HDAL) data with 180 points m -2 for characterizing tree growth anomalies caused by landslides. HDAL allowed the mapping of a complex landslide and its three kinematic zones. The TreeVaw method delineated trees from the HDAL data and determined their position and height, while the SkelTreskeletonization method extracted the tree inclination. Tree detection accuracies were measured up to 88.2% in the transport zone with tree height (r 2 =0.77). The coefficients of determination for tree inclination were 0.82, 0.60, and 0.83 for source, transport, and deposition zones, respectively. We found the distribution of LiDAR-derived tree growth anomalies was statistically different for landslide areas as compared to stable areas.
منابع مشابه
Probiotic prophylaxis in predicted severe acute pancreatitis: a randomised, double-blind, placebo-controlled trial
Marc G H Besselink, Hjalmar C van Santvoort, Erik Buskens, Marja A Boermeester, Harry van Goor, Harro M Timmerman, Vincent B Nieuwenhuijs, Thomas L Bollen, Bert van Ramshorst, Ben J M Witteman, Camiel Rosman, Rutger J Ploeg, Menno A Brink, Alexander F M Schaapherder, Cornelis H C Dejong, Peter J Wahab, Cees J H M van Laarhoven, Erwin van der Harst, Casper H J van Eijck, Miguel A Cuesta, Louis M...
متن کاملLYMPHOID NEOPLASIA Inhibition of aurora kinases for tailored risk-adapted treatment of multiple myeloma
Dirk Hose,1,2 Thierry Rème,3,4 Tobias Meissner,1 Jérôme Moreaux,3,4 Anja Seckinger,1 Joe Lewis,5 Vladimir Benes,5 Axel Benner,6 Michael Hundemer,1 Thomas Hielscher,6 John D. Shaughnessy Jr,7 Bart Barlogie,7 Kai Neben,1 Alwin Krämer,1 Jens Hillengass,1 Uta Bertsch,1 Anna Jauch,8 John De Vos,3,4 Jean-François Rossi,3,4 Thomas Möhler,1 Jonathon Blake,5 Jürgen Zimmermann,5 Bernard Klein,3,4 and Har...
متن کاملZoonotic Transmission of mcr-1 Colistin Resistance Gene from Small-Scale Poultry Farms, Vietnam
We investigated the consequences of colistin use in backyard chicken farms in Vietnam by examining the prevalence of mcr-1 in fecal samples from chickens and humans. Detection of mcr-1-carrying bacteria in chicken samples was associated with colistin use and detection in human samples with exposure to mcr-1-positive chickens.
متن کاملCombining the AFLOW GIBBS and elastic libraries to efficiently and robustly screen thermomechanical properties of solids
Cormac Toher,1 Corey Oses,1 Jose J. Plata,1 David Hicks,1 Frisco Rose,1 Ohad Levy,1,2 Maarten de Jong,3,4 Mark Asta,3 Marco Fornari,5 Marco Buongiorno Nardelli,6 and Stefano Curtarolo7,* 1Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, USA 2Department of Physics, NRCN, Beer-Sheva, 84190, Israel 3Department of Materials Science and Engin...
متن کامل