Using high resolution digital aerial imagery interpreted in a 3-D digital GIS environment to map predefined plant communities in central-southern New South Wales.

Maguire, Owen; Armstrong, R.C.; Benson, John; Streeter, RE; Paterson, Caitlin; McDonald, Peter J.; Salter, N.; East, Matthew; Webster, Melinda; Sheahan, M.; Young, Dylan M.

doi:10.7751/cunninghamia.2012.12.020

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…Examples include floristic mapping using traditional survey and aerial photographic interpretation methods such as has been used in the Murray Mallee region in South Australia (Foulkes & Gillen ) and the recent advancement of using digital aerial photographic interpretation, in three‐dimensional space, of high‐resolution airborne imagery (Maguire et al . ). Maguire et al .…”

Section: Introductionmentioning

confidence: 97%

“…Maguire et al . () through independently assessed random blind validation points scored an accuracy of 87% for PCTs.…”

Section: Introductionmentioning

confidence: 99%

“…There are a number of alternative methods available to prepare landscape-wide vegetation maps. Examples include floristic mapping using traditional survey and aerial photographic interpretation methods such as has been used in the Murray Mal-lee region in South Australia (Foulkes & Gillen 2000) and the recent advancement of using digital aerial photographic interpretation, in three-dimensional space, of high-resolution airborne imagery (Maguire et al 2012). Maguire et al (2012) through independently assessed random blind validation points scored an accuracy of 87% for PCTs.…”

Section: Introductionmentioning

confidence: 99%

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Validation of the Greater Hunter Native Vegetation Mapping as it pertains to the Upper Hunter region of New South Wales

Hunter¹

2016

Eco Management Restoration

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Summary Reliable vegetation maps are an important component of any long‐term landscape planning initiatives. A number of approaches are available but one, in particular, pattern recognition (segmentation) combined with modelling from floristic site data, is currently being used to map vegetation across NSW. An independent assessment of this approach based on a review of the Greater Hunter Native Vegetation Mapping (GHM_v4) was undertaken in order to assess its ability to cater for regional, local, strategic and landscape planning. The validation process tested 2151 locations across the Upper Hunter Valley region of New South Wales (NSW), Australia. The results suggest that mapping at the coarsest level of NSW vegetation classification, the Formation, is generally poor, with only Dry Sclerophyll Forest and Woodland modelled with some level of reliability. The modelled mapping of individual plant community types (PCTs) was found to be highly inaccurate with only 17% of validation points attributed as ‘correct’ and a further 13% ‘essentially correct’. Therefore, a majority of PCTs were mapped with an accuracy of less than 30%. The results of this validation suggest that the GHM_v4 is of such a low level of accuracy within the upper Hunter as to be inherently unusable for broad‐scale regional and local landscape planning or environmental assessment, including locating compensatory offsets for the loss of native vegetation due to developments. The GHM_v4 methods of pattern recognition of mainly SPOT5 satellite imagery combined with modelling from plot data have not produced reliable vegetation maps of plant community types. Yet this mapping programme is extending across NSW and could be misused for environmental decisions or as a regulation.

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Section: Introductionmentioning

confidence: 97%

“…Maguire et al . () through independently assessed random blind validation points scored an accuracy of 87% for PCTs.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Validation of the Greater Hunter Native Vegetation Mapping as it pertains to the Upper Hunter region of New South Wales

Hunter¹

2016

Eco Management Restoration

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“…Recent advances allow on-screen 3D viewing of digital aerial photography processed with digital terrain model (DTM) data to provide reduced distortion and increased mapping accuracy(see Maguire et al 2012; Murillo-García et al 2014 for applications to other resources). Accuracy and efficiency of photo-interpretation vary among these three methods.…”

Section: Introductionmentioning

confidence: 99%

Efficiency and Detection Accuracy Using Print and Digital Stereo Aerial Photography for Remotely Mapping Vernal Pools in New England Landscapes

et al. 2016

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Aerial imagery has been used to identify potential vernal pools (PVPs) using stereo photographic prints. Stereo plotter photogrammetry now allows digital aerial images to be viewed in stereo (3-Dimensional) to enhance remote sensing capabilities. We used both print and digital imagery to mapPVPsin10townsinMaine, USA. We used field verification of 771PVPs to explore efficiency and accuracy of the two methodologies and to determine effects of pool size and land cover on accuracy. We compared known pool locations with National Wetland Inventory (NWI) data. The stereo plotter was more efficient and easier to use than prints. In the towns where print imagery was used, 77.4 % of surveyed PVPs were confirmed as comparedto60.8%ofPVPs surveyed in the towns with digital photography. The higher commission errors using the digital method were likely due to enhanced ability to detect smaller features. Omission errors were common using both print and digital methods. Only 43%ofconfirmedvernalpoolswerelocatedinareas mapped by NWI, suggesting that NWI information does not improve detection accuracy. Aerial photo interpretation continues to be effective for PVP identification in our region and is improved with the use of digital stereo plotters.

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Resilience of trees and the vulnerability of grasslands to climate change in temperate Australian wetlands

Saintilan

Bowen

Maguire³

et al. 2021

Landscape Ecol

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Using high resolution digital aerial imagery interpreted in a 3-D digital GIS environment to map predefined plant communities in central-southern New South Wales.

Cited by 6 publications

References 11 publications

Validation of the Greater Hunter Native Vegetation Mapping as it pertains to the Upper Hunter region of New South Wales

Validation of the Greater Hunter Native Vegetation Mapping as it pertains to the Upper Hunter region of New South Wales

Efficiency and Detection Accuracy Using Print and Digital Stereo Aerial Photography for Remotely Mapping Vernal Pools in New England Landscapes

Resilience of trees and the vulnerability of grasslands to climate change in temperate Australian wetlands

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