ABSTRACT

Since concerns have recently been voiced by the scientific community and the society at large regarding the global effects of the alteration in carbon cycle, important improvements in our capacity to remotely estimate LUE have occurred (Grace et al. 2007). The approaches to remotely estimate LUE are linked to how we can gather a signal of the photosynthetic efficiency from reflected light, heat, or chlorophyll fluorescence (Figure  3.1). Although the theory of developing remotely sensed estimations from these pathways seems clear enough and estimations are made at different scales,

complications still are being resolved as new platforms and sensors become available.