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4th Week of June 2019

Asner, Gregory P., and Peter M. Vitousek. Remote analysis of biological invasion and biogeochemical change. Proceedings of the National Academy of Sciences 102.12 (2005) 4383-4386
The exotic tree is invading the site. it has higher N concentration than native trees so that the spread of the invader can be easily detected by comparing chemical composition. Interestingly, some region was founded to have higher water content and lower N concentration than before. In that region, the other exotic tree are invading the understory. When remotely sensing, water content could estimated for both overstory and understory trees though N concentration could not.

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3rd week of october

Wang, Z., et al. (2010). "Large variations in Southern Hemisphere biomass burning during the last 650 years." Science 330(6011): 1663-1666. Biomass burning and methane oxidation affect the amount of CO. C derived from biomass burning has higher delta C-13 than methane oxidized C. Also, there is fraction between O-16 and O-18. Using delta C-13 and delta O-18, CO amounts and their relative source can be retrieved.

AGU 2019

4th week of september

Brodrick, P. G., Davies, A. B., & Asner, G. P. (2019). Uncovering Ecological Patterns with Convolutional Neural Networks.  Trends in ecology & evolution . When extracting foliar information from high resolution image, it would be quite hard work to detect the leaf, which one wants to know in the map. In the map, the pixel information varies depending on individual leaf angle. And it can change depending on solar zenith angle, which changes every observation. T hough one is interested in just the information of a certain leaf, s patial pattern have to be considered.