ASSESSING HEMLOCK WOOLLY ADELGID INDUCED DECLINE AND SUSCEPTIBILITY USING HYPERSPECTRAL TECHNOLOGIES

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" ASSESSING HEMLOCK WOOLLY ADELGID INDUCED DECLINE AND SUSCEPTIBILITY USING HYPERSPECTRAL TECHNOLOGIES "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	150280
Doc. No	:	ET22072
Main Entry	:	JENNIFER PONTIUS
Title Proper	:	ASSESSING HEMLOCK WOOLLY ADELGID INDUCED DECLINE AND SUSCEPTIBILITY USING HYPERSPECTRAL TECHNOLOGIES
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	The ultimate goal of this study was to provide the scientific framework for usingnarrow band hyperspectral instruments to assess early hemlock decline and susceptibilityto the introduced hemlock woolly adelgid (HWA). To this end, spectral data from anASD Fieldspec Pro was used to develop a 6-term linear regression equation, whichpredicted a detailed decline rating (0-10) with an R~ of 0.71 and RMSE of 0.591. Toscale up this method to a remote sensing platform, NASA's Airborne Visible InfraredImaging Spectrometer (AVIRIS) was used to create a hemlock abundance map, correctlyidentifying hemlock dominated pixels (40 basal area) with 88 accuracy.Reflectance at a chlorophyll sensitive wavelength (683nm), coupled with a water bandindex (R970/900), was able to predict decline with 85 accuracy. The extreme accuracy...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject	:	Electericl tess
	:	برق
electronic file name	:	TL45270.pdf
Title and statement of responsibility and	:	ASSESSING HEMLOCK WOOLLY ADELGID INDUCED DECLINE AND SUSCEPTIBILITY USING HYPERSPECTRAL TECHNOLOGIES [Thesis]