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Species Discrimination of Mangroves Using Derivative Spectral Analysis : Volume Ii-8, Issue 1 (27/11/2014)

By Arun Prasad, K.

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Book Id: WPLBN0003980902
Format Type: PDF Article :
File Size: Pages 8
Reproduction Date: 2015

Title: Species Discrimination of Mangroves Using Derivative Spectral Analysis : Volume Ii-8, Issue 1 (27/11/2014)  
Author: Arun Prasad, K.
Volume: Vol. II-8, Issue 1
Language: English
Subject: Science, Isprs, Annals
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Gnanappazham, L., & Prasad, K. A. (2014). Species Discrimination of Mangroves Using Derivative Spectral Analysis : Volume Ii-8, Issue 1 (27/11/2014). Retrieved from http://community.worldlibrary.net/


Description
Description: Department of Earth and Space Sciences, Indian Institute of Space Science and Technology, Thiruvananthapuram, Kerala, India. Mangroves are salt tolerant trees or shrubs commonly seen in mudflats of intertidal regions of tropical and subtropical coastlines. Recent advances in field spectroscopic techniques enabled the species level discrimination among closely related vegetation types. In this study we have analysed the laboratory spectroscopy data collected from eight species of Rhizophoraceaea family of mangroves. The spectral data ranges between the wavelength of 350 nm and 2500 nm at a very narrow bandwidth of 1 nm. Preprocessing techniques including smoothing were done on the spectra to remove the noise before compiling it to a spectral library. Derivative analysis of the spectra was done and its corresponding first and second derivatives were obtained. Statistical analysis such as parametric and non-parametric tests were implemented on the original processed spectra as well as their respective first and second order derivatives for the identification of significant bands for species discrimination. Results have shown that red edge region (680 nm – 720 nm) and water vapour absorption region around 1150 nm and 1400 nm are optimal as they were consistent in discriminating species in reflectance spectra as well as in its first and second derivative spectra. C. decandra species is found to be discriminable from other species while reflectance and its derivative spectra were used. Non-parametric statistical analysis gave better results than that of parametric statistical analysis especially in SWIR 2 spectral region (1831 nm – 2500 nm).

Summary
Species Discrimination of Mangroves using Derivative Spectral Analysis

 

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