The geology, landforms and topography of Sub-Antarctic Macquarie Island, Australia, as revealed by AIRSAR

Ian Tapley; Arjan H. Dijkstra; Henk Brolsma

doi:10.1109/IGARSS.2004.1369112

The geology, landforms and topography of Sub-Antarctic Macquarie Island, Australia, as revealed by AIRSAR

Ian Tapley^*, Arjan H. Dijkstra, Henk Brolsma

^*Corresponding author for this work

Research output: Contribution to conference › Paper › peer-review

3 Citations (Scopus)

Abstract

Enhancements of AIRSAR data are revealing an extraordinary amount of land-surface and geological information relevant to the island's genesis at a mid-ocean ridge, ongoing uplift and subsequent shaping of the surface by extensive faulting, wave action and active processes including freeze/thawing, wind and rain. Overlaying these enhancements on the TOPSAR DEM enables this active landscape to be analyzed in three dimensions. The level of detail indicates that the radar signals are penetrating the snow cover and being backscattered by the underlying surface of rock, lag gravels and vegetation. Drainage patterns, dammed lakes, levels of incision, fault structures, raised beach deposits and terraces, and possible evidence of glacial action can all be recognized in various enhancements of the AIRSAR data.

Original language	English
Pages	649-652
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS.2004.1369112
Publication status	Published - 1 Dec 2004
Externally published	Yes
Event	2004 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004 - Anchorage, United States Duration: 20 Sep 2004 → 24 Sep 2004

Conference

Conference	2004 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004
Abbreviated title	IGARSS 2004
Country/Territory	United States
City	Anchorage
Period	20/09/04 → 24/09/04

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10.1109/IGARSS.2004.1369112

Cite this

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abstract = "Enhancements of AIRSAR data are revealing an extraordinary amount of land-surface and geological information relevant to the island's genesis at a mid-ocean ridge, ongoing uplift and subsequent shaping of the surface by extensive faulting, wave action and active processes including freeze/thawing, wind and rain. Overlaying these enhancements on the TOPSAR DEM enables this active landscape to be analyzed in three dimensions. The level of detail indicates that the radar signals are penetrating the snow cover and being backscattered by the underlying surface of rock, lag gravels and vegetation. Drainage patterns, dammed lakes, levels of incision, fault structures, raised beach deposits and terraces, and possible evidence of glacial action can all be recognized in various enhancements of the AIRSAR data.",

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The geology, landforms and topography of Sub-Antarctic Macquarie Island, Australia, as revealed by AIRSAR. / Tapley, Ian; Dijkstra, Arjan H.; Brolsma, Henk.

2004. 649-652 Paper presented at 2004 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004, Anchorage, Alaska, United States.

Research output: Contribution to conference › Paper › peer-review

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The geology, landforms and topography of Sub-Antarctic Macquarie Island, Australia, as revealed by AIRSAR

Abstract

Conference

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