Product no longer exists, please refer to GeoCat #30413 for the data

Product no longer exists, please refer to GeoCat #30413 for the data

Product no longer exists, please refer to GeoCat #30413 for the data

Product no longer exists, please refer to GeoCat #30413 for the data

Product no longer exists, please refer to GeoCat #30413 for the data

Digital orthophotography was prepared from aerial photography flown on the 16th, 20th, and 21st of August 1987 and the 1st September 1987 by the Australian Survey Office (now Geoscience Australia) Canberra. AGSO commissioned BHP Engineering, Land Technologies Division to generate orthophotography from the 1987 aerial photography as a component of this Christmas Island GIS project that AGSO undertook on behalf of Territories Office. The orthophotography has a 30cm on-the-ground pixel size. The quality and resolution of the orthophotography is reasonable down to 1:500 scale. An orthophotograph is a computer image of an aerial photograph in which various distortions due to the landscape and camera lens have been removed. This data is based on the aerial photography of Christmas Island flown in August and September 1987. This has been converted to detailed colour orthophotography (at a 30cm ground resolution) presented as one hundred and fifty-seven 1km tiles for the whole of the Island. On most systems not all the orthophotography will be in this directory, due to limitations of disk size. Most orthophotography of disturbed areas (mining or township) is on the core CD-ROM.

The Integrated Vegetation Cover (2003), hereafter referred to as the IVC03 dataset represents vegetation cover across Australia and was compiled by integrating a number of recent vegetation-related datasets.This dataset was developed to assess and report on the type and extent of native, non-native and non-vegetated cover types across the whole landscape. This dataset has been used to describe vegetation types found in each National Action Plan and Natural Heritage Trust regions across Australia. Data are stored as a raster of 100m resolution and are projected in Albers conic equal-area coordinates.Version 1 incorporates a selection of the latest available vegetation data as at July 2003.Vegetation cover in the IVC03 dataset is described using a 12-class attribute schema that was developed to meet vegetation-related information needs of the Commonwealth Government natural resource management arena.The IVC03 dataset has 12 attribute classes:1Native forests and woodlands 2Native shrublands and heathlands 3Native grasslands and minimally modified pastures4Horticultural trees and shrubs5Perennial crops6Annual crops and highly modified pastures7Plantation (hardwood)8Plantation (softwood/mixed)9Bare10Ephemeral and Permanent Water Features11Built-up99Unknown/not reportable. Five datasets were used as inputs to create the IVC03 dataset.A national ruleset was developed to assign orders of precedence to each attribute value from each input dataset.The ruleset was used to integrate the inputs into a single vegetation cover dataset. The five input datasets were:-Agricultural Land Cover Change (ALCC95);-Forests of Australia 2003 (FOA03);-1996/97 Land Use of Australia, Version 2 (LUA97);-Land Use Mapping at the Catchment Scale (LUMCS03); and-National Vegetation Information System 2000 (NVIS00).

Stratovolcanoes are steep-sided volcanoes that can erupt explosively eg. Mt St Helens. See internal and external volcanic features, plot the path of lava flows and see the risk faced by local towns. This product comprises one set of thirty A4 stratovolcano paper models, ready to cut out and construct a 3D model. Assembly instructions included. Suitable for primary level Years K-6 and secondary level Years 7-10.

This paper gives an interpretation of the continental margin off Willkes Land and Terre Adelie, East Antarctica, concentrating on the transition from continental to oceanic crust. The interpretation is based on the deep-seismic and potential field data acquired under the Australian Antarctic and Southern Ocean Profiling Project in 2001 and 2002.

This record describes digital data compilation product, where several individual items are grouped for delivery on single CD-ROM. Content and number of items included in the compilation package can vary, depending on size of the individual items. The contents of this CD-ROM are as follows: Catalog # Title 21173 NTdata, all mapinfo mapsheets