Using a fixed flame height, laser-based measurements are generally consistent with smoke point trends, and laser extinction calibrations provide quantitative soot volume fractions.
The chosen ALS metric, the square of the mean height of laser echoes emphasized the grid cells with the tallest trees.
In our case, this technique decreased sampling efficiency in stand 2. This was due to the negative correlation between aspen volume and the square of the mean height of laser, i.e. the tallest trees in stand 2 are not aspens.
This simple puzzle game sees players piling up blocks to meet various goals, whether reaching for height, deflecting lasers or building round obstacles.
To resolve these problems, it is necessary to deploy a new retroreflector whose "reflection performance" (hereafter, we define it as the peak height of received laser pulse over the unit laser output energy with a specified time width) is greater than that of the A15 retroreflector on the lunar southern hemisphere, for example, from the middle to high latitude or lunar peripheral region.
Several studies have noted that measures of canopy characteristics obtained from the laser height distribution, together with selected laser height percentiles, have proven useful for estimating timber volume (Means et al. 1999; Næsset & Økland 2002).
When he found a big tree, he would get an estimate of its height using a laser device.
The 20-cm CCM yields two times peak height for returned laser pulse compared with Apollo 15's retroreflector.
Double exposure of PR patterns with an appropriate height to interfered laser lights produced periodic features together with designed functional lines at nanoscale simultaneously.
Fig. 6 Probability distribution of aboveground carbon density (ACD, Mg C·yr−1) in natural and secondary forests, based on 2.6 million and 1.9 million measurements, respectively, of top-of-the-canopy height by airborne laser scanning.
Two lidar processing algorithms are discussed the first based on single tree crown identification using a variable window size for local filtering, and the second based on the height of all laser pulses within the area covered by the ground truth data.
