Macquarie Island Vegetation and Drainage Structure Data Set

• Other Authors: Australian Antarctic Division (isOwnedBy)
• Format: Dataset
• Language: unknown
• Published: data.gov.au
• Subjects: AERIAL PHOTOGRAPHS; AMD; AMD-AU; CEOS; EARTH SCIENCE - BIOSPHERE - VEGETATION - VEGETATION COVER; EARTH SCIENCE - TERRESTRIAL HYDROSPHERE - SURFACE WATER - LAKES; EARTH SCIENCE - TERRESTRIAL HYDROSPHERE - SURFACE WATER - RIVERS-STREAMS; FIELD SURVEYS; GEOGRAPHIC REGION - POLAR; OCEAN - SOUTHERN OCEAN; OCEAN - SOUTHERN OCEAN - MACQUARIE ISLAND; SATELLITES; SPOT-3 - Systeme Probatoire Pour l-Observation de la Terre-3; map; vegetation; Island C; New Zealand; Pacific; Southern Ocean; Antarc*; Antarctica; Macquarie Island
• Online Access: https://researchdata.edu.au/macquarie-island-vegetation-data-set/1434792; http://data.gov.au/dataset/ec9b0656-b8f9-4866-ab26-59c99e125399

The data for this map were collected as part of two ASAC projects - 488 and 956, of which Patricia Selkirk was the chief investigator. Macquarie Island (54 degrees S 159 degrees E) is a subantarctic island (c. 35km by 3 to 5km) approximately equidistant between Tasmania, New Zealand and Antarctica in the Southern Ocean. The vegetation is herbaceous, lacking shrubs and trees. Vegetation and drainage are mapped at a scale of 1:25 000 from field observations, satellite imagery and limited oblique and aerial photography. The categories adopted for mapping vegetation are based on attributes of foliage height and percentage foliage cover of the ground surface (vegetation structure), not on species distribution (floristics). The distribution of vegetation categories is strongly correlated with aspect, topography and rock type. Mires, streams and lakes form an intricate drainage pattern that is strongly influenced by the geology of this tectonically active emergent crest of the submarine Macquarie Ridge at the boundary of the Pacific and Australian plates. The drainage pattern of the whole island is represented in a map with substantially greater accuracy than in any previous map. Download vegetation polygon data - Download vegetation polygon data Download vegetation point data - Download vegetation point data Download lakes - Download lakes Download escarpment, ridgelines, streams and lines indicating change of slope - Download escarpment, ridgelines, streams and lines indicating change of slope Search the SCAR Feature Catalogue, dataset identifiers and quality information indicators - Search the SCAR Feature Catalogue, dataset identifiers and quality information indicators Public information for ASAC project 488 - Public information for ASAC project 488 Public information for ASAC project 956 - Public information for ASAC project 956 Details about the compilation and interpretation of the map. - Details about the compilation and interpretation of the map. Citation reference for this metadata record and dataset - ...