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- W1639167910 abstract "Airborne Laser Swath Mapping (ALSM, also referred to as LiDAR) is used to determine the presence and height of various vegetation types in rangeland areas of southeastern Idaho. Vegetation heights are difficult to determine using established multispectral and hyperspectral remote sensing methods and are of interest in differentiating between spectrally similar subspecies (i.e. big sagebrush and threetip sagebrush) and in determining vegetation maturity (and thus history, such as evidence of past burns or other catastrophic events). While LiDAR has been shown to be of great use in studying the highrelief canopies of forests, the low canopy heights of grasses and brush encountered in rangeland areas make such vegetation difficult to discern from the bare ground surface. An added obstacle is that the elevation uncertainties of LiDAR data are often comparable to the rangeland vegetation heights. This study attempts to extract vegetation heights from first-pulse LiDAR data by assuming a partially open canopy with a relatively smooth underlying ground surface. Surface roughness and fractal analysis are then used in an attempt to classify vegetation types." @default.
- W1639167910 created "2016-06-24" @default.
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- W1639167910 date "2003-12-01" @default.
- W1639167910 modified "2023-09-26" @default.
- W1639167910 title "Detection and Characterization of Rangeland Vegetation Using Airborne Laser Swath Mapping" @default.
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