Sentence examples for top of canopy from inspiring English sources
Nadir viewing top of canopy reflectance in the three bands is input to the biophysical algorithm to compute the products at 10 days sampling interval.
The neural network requires as input the geometry of observation and the top of canopy reflectances, corrected from the atmospheric effects, in eleven spectral bands.
To date, however, much of this research has occurred using top of canopy measurements, while our understanding of the vertical distribution of LUE within the crown is limited.
Our algorithm first implements a multi-level noise filtering approach to minimize noise photons and subsequently classifies the remaining photons into ground and top of canopy using an overlapping moving window method and cubic spline interpolation.
The slopes computed from the two altimetric signals are compared in order to show how the correlation between the ground and the top of canopy varies with regards to scale in an Amazonian landscape.
The LiDAR data were converted to maps of top-of-canopy height (TCH).
(a) Calibration of LiDAR top-of-canopy (TCH) height to field-plot estimates of aboveground carbon density [ACD = 0.359TCH1.7676].
Although Asner et al. [15] previously compared regions using LiDAR-derived mean canopy profile height (MCH), we used top-of-canopy height (TCH) in this study.
Top-of-canopy height (TCH) was measured at 1.1 m spatial resolution in systematically collected, national LiDAR sampling transects covering a total of 391,857 ha throughout Panama (Figure 1).
We masked this map to exclude areas that are not forested, using a mean per hectare threshold of >70 % photosynthetic vegetation and >2 m top-of-canopy height (TCH).
