Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2222751 |
Geospatial mapping of vegetation in the Antarctic environment using very high resolution WorldView-2 imagery | |
Jawak, Shridhar D.1; Udhayaraj, A. D.2; Luis, Alvarinho J.1 | |
通讯作者 | Jawak, Shridhar D. |
会议名称 | Conference on Land Surface and Cryosphere Remote Sensing III |
会议日期 | APR 04-07, 2016 |
会议地点 | New Delhi, INDIA |
英文摘要 | A robust monitoring of the changes in the distribution and density of cryospheric plant species requires accurate and high-resolution baseline maps of vegetation. Mapping such change at the landscape scale is often problematic, particularly in remote areas, such as Antarctica. Vegetation mapping of plant communities at fine spatial scales is increasingly supported by remote sensing technology in cryospheric regions. Less frequent imaging with high spatial resolution satellite sensors enable more detailed analyses of vegetation change frequently. This study is the first to use high-resolution WorldView-2 (WV-2) imagery to classify vegetation communities on Antarctic oases and to provide semi-automated means to map vegetation, as an imperative indicator for environmental change. Multispectral imagery (MSI) and panchromatic imagery (PAN) from very high resolution WV-2 have been used for mapping of vegetation in different forms in Antarctic environment. A range of supervised classification methods have been executed using pansharpened WV-2 data. This study comparatively and statistically evaluates vegetation mapping results using supervised and unsupervised classification methods to extract vegetation in Larsemann Hills and Schirmacher oasis, east Antarctica. We also discuss on the use of supervised pixel-based classifiers and textural measures, in addition to standard multispectral information, to improve the classification of Antarctic vegetation communities. Classification results were validated with independent reference datasets. This work indicates that the overall accuracy of mapping vegetation using WV-2 imagery and semiautomated target extraction methods ranged from 90% to 94%. |
英文关键词 | vegetation WordlView-2 mapping supervised target detection methods |
来源出版物 | LAND SURFACE AND CRYOSPHERE REMOTE SENSING III |
ISSN | 0277-786X |
出版年 | 2016 |
卷号 | 9877 |
EISBN | 978-1-5106-0118-5 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | India |
收录类别 | CPCI-S |
WOS记录号 | WOS:000389680500040 |
WOS关键词 | ARCTIC VEGETATION ; COVER ; RAMP ; NDVI |
WOS类目 | Remote Sensing ; Optics |
WOS研究方向 | Remote Sensing ; Optics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/305647 |
作者单位 | 1.NCAOR, ESSO, Polar Remote Sensing Dept, Minist Earth Sci, Gama 403804, Goa, India; 2.Univ Madras, Dept Geog, Chennai, Tamil Nadu, India |
推荐引用方式 GB/T 7714 | Jawak, Shridhar D.,Udhayaraj, A. D.,Luis, Alvarinho J.. Geospatial mapping of vegetation in the Antarctic environment using very high resolution WorldView-2 imagery[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016. |
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