Visiting lecture by prof. Arturo Sanchez-Azofeifa
Dr. Arturo Sanchez-Azofeifa -The role of hyperspectral remote sensing to estimate the extend of Lianas in tropical environments
Visting lecture at the Department of Civil Engineering by professor Arturo Sanchez-Azofeifa, Director, Alberta Centre for Earth Observation Sciences (CEOS) University of Alberta, Canada https://www.researchgate.net/profile/GA_Sanchez-Azofeifa
Title: The role of hyperspectral remote sensing to estimate the extend of Lianas in tropical environments
Host: Professor Jussi Leveinen, p. 040 723 2215
Please forward on to anyone who might be interested.
In the context of the impacts of climate change on tropical regions, the increase on the dominance of lianas is considered one of the top ten dominant fingerprints. This fingerprint is more significant in tropical dry forests than in rainforests since dry ecosystems have higher Liana diversity than any other tropical ecosystem. In general, efforts to estimate liana dominance are based on field studies that require time and are expensive; therefore new techniques to monitor their extent and increased dominance are necessary. In this regard, hyperspectral remote sensing can play a role in emerging monitoring efforts. In this presentation, an evaluation of current theories of liana dominance in the tropics is first presented. Second, a discussion of the mechanisms controlling hyperspectral responses of liana and tree leaves at the cell, leaf and landscape level is discussed. Hyperspectral information on the visible, near-infrared, short-wave infrared, and thermal infrared is evaluated. Finally, an exploration of the role of multi-spectral remote sensing cameras mounted on drones, and the integration of this technology with machine learning techniques to estimate liana dominance in tropical dry forest ecosystems is discussed