Spectral behavior of vegetation in Harmony Point, Nelson Island, Antarctica

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作   者：

da Rosa, Cristiano Niederauer;  Pereira Filho, Waterloo;  Bremer, Ulisses Franz;  Putzke, Jair;  de Andrade, Andre Medeiros;  Kramer, Gisieli;  Hillebrand, Fernando Luis;  de Jesus, Janisson Batista; 

作者机构：

Univ Fed Santa Maria;  Fed Univ Pampa;  Univ Fed Rio Grande do Sul;  Fed Univ Vales Jequitinhonha & Mucuri; 

关键词：

Vegetation index;  FIELD;  PENINSULA;  Spectral pattern;  Hyperespectral mesurment;  CHLOROPHYLL CONTENT;  RESPONSES;  IMAGING SPECTROSCOPY;  REFLECTANCE SPECTRA;  LICHENS;  Maritime Antarctica;  HEALTH;  Biodiversity of lichens and bryophytes; 

期刊名称：

Biodiversity and Conservation

i s s n：

0960-3115

年卷期：

2022 年 31 卷 7 期

页   码：

1867-1885

页   码：

摘   要：

The present article aims to identify the spectral pattern of several species of mosses, lichens, and of an alga found in Maritime Antarctica from hyperspectral data obtained in situ. Spectral data from 17 species of Antarctic vegetation were collected in Harmony Point, between February 8th and 15th, 2019. To evaluate the possibility of distinguishing the species of vegetation obtained in the field from satellite images, band simulations have been performed, in addition to spectral vegetation indices calculation and statistical analyses for the comparison of results. The results show that the first record of the spectral pattern of species as Andreaea gainii, Haematomma erythromma, and Polytrichum juniperinum. The sensors with a better spectral resolution, such as MultiSpectral Instrument (MSI) and RedEdge-MX Dual Camera Imaging System, revealed a greater capacity of species differentiation. In this regard, it is possible to conclude that the spectral resolution of the simulated sensors is capable of identifying most of the analyzed species.