학술논문

The use of the SHOALS waveforms to mapping habitat within the seamless benthoscape
Document Type
Conference
Source
IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International. 2:II-1144-II-1147 Jul, 2008
Subject
Geoscience
Signal Processing and Analysis
Surface emitting lasers
Sea measurements
Laser radar
Pulse measurements
Sea surface
Surface topography
Wavelength measurement
Vegetation mapping
Time measurement
Optical pulses
topographic and bathymetric LiDAR
waveform
multivariate analysis
seafloor habitat classification
salt marsh classification
Language
ISSN
2153-6996
2153-7003
Abstract
The Scanning Hydrographic Operational Airborne LiDAR Survey (SHOALS) consists of an ubiquitous topographic and bathymetric LiDAR system which provides high resolution measurements of emerged and immersed elevation. Besides, the return signals, i.e., waveforms, contain signatures of the benthic return for subtidal area and of the salt marsh cover for intertidal zone. This paper highlights the seamless classification of the coast from the upper marsh to the near-shore. The subtidal seafloor is characterized in applying a supervised classifier to 12 SHOALS-derived benthic variables, supporting by underwater image classification (78.6%). The intertidal marsh is classified in respect to the combination of a synthetic Vegetation indice (based on Red and InfraRed) and the elevation (95.2%). The merge of both classifications points out 16 classes with an overall accuracy of 86.9%.