Satellite remote sensing for mapping vegetation in New Zealand freshwater environments: A review |
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| Authors: | Salman Ashraf Lars Brabyn Brendan J Hicks Kevin Collier |
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| Institution: | Department of Geography, Tourism and Environmental Planning, University of Waikato, Private Bag 3105, Hamilton, New Zealand,;Centre for Biodiversity and Ecology Research, Department of Biological Sciences, University of Waikato, Private Bag 3105, Hamilton, New Zealand,;Environment Waikato Box 4010, Hamilton, New Zealand |
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| Abstract: | Freshwater environments in New Zealand provide a range of ecosystem services and contain important biodiversity. Managing these environments effectively requires a comprehensive inventory of the resource and cost-effective tools for regular monitoring. The complex and extensive margins of natural water bodies make them difficult to sample comprehensively. Problems thus occur with extrapolating point-specific sampling to accurately represent the diversity of vegetation in large freshwater bodies. Mapping freshwater vegetation using satellite remote sensing can overcome problems associated with access, scale and distribution, but it requires high-resolution images that have appropriate spectral characteristics. This paper provides an overview of the optical satellite data characteristics required for mapping riparian, submerged and emergent vegetation associated with freshwater environments in New Zealand. |
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| Keywords: | emergent aquatic vegetation (EAV) riparian vegetation satellite remote sensing submerged aquatic vegetation (SAV) |
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