Segmentation of ALSM point data and the prediction of subcanopy sunlight distribution

Author

Lee, Heezin ; Kampa, Kittipat ; Slatton, K. Clint

Author_Institution

Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL, USA

Volume

1

fYear

2005

fDate

25-29 July 2005

Abstract

Sunlight flux in forest canopies is an important source of energy for the productivity of forests and is therefore an important input to biophysical process models. High-resolution three-dimensional estimates of sunlight flux are derived from directional foliage density measured from airborne laser swath mapping data. Forest edges are shown to exhibit measurable differences in flux. A method for determining appropriate in situ sampling intervals is also presented.

Keywords

atmospheric techniques; data acquisition; forestry; geophysical signal processing; image segmentation; remote sensing by laser beam; sunlight; ALSM point data segmentation; airborne laser swath mapping data; biophysical process models; directional foliage density; forest canopy; forest edge; forest productivity; subcanopy sunlight distribution prediction; sunlight flux; Adaptive filters; Biological system modeling; Density measurement; Laser radar; Power engineering and energy; Productivity; Sampling methods; Sea measurements; Testing; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings. 2005 IEEE International

Print_ISBN

0-7803-9050-4

Type

conf

DOI

10.1109/IGARSS.2005.1526227

Filename

1526227