Winter geoid - ellipsoid separation bi-cubic interpolation

Determination of an accurate groundwater balance for a region requires estimation of recharge and discharge rates and, where possible, knowledge of their spatial distribution. Where the value of the resource warrants it, detailed recharge and discharge studies are commissioned. These studies provide comprehensive empirical information on spatial and temporal variability of recharge, and the relationship between recharge rates and soil, regolith, landform and vegetation parameters. Where the value of the resource does not warrant detailed research, much cruder approaches (such as the estimation of recharge as a simple percentage of rainfall or the assumption that discharge is non-existent) are used. The CSIRO-led Recharge Discharge Mapping in Data Poor Areas Project jointly undertaken with Geoscience Australia (GA) developed a nationally consistent approach to recharge and discharge estimation for data poor areas which provide an intermediate solution between the use of simple approximations and the results of detailed field and modelling studies. Initially made available via GA's MapConnect website, the data layers in this dataset provide the means for hydrologists to populate the Recharge Estimation spreadsheet and the Discharge Estimation spreadsheet which may be sourced from CSIRO.

AGRF95 is a set of computer programs to evaluate the Australian Geomagnetic Reference Field between 1995 and 2000. The AFRF95 model describes the geomagnetic field and its secular variation in the Australian region and comprises a main field model and a prospective secular variation model to extend the life of the model. The AGRF model represents the Earth's main magnetic field originating from the core and the broad scale crustal field. The AGRF does not model short term variations of the magnetic field with time, such as those caused by solar activity or ionspheric currents. The AGRF is derived from vector magnetic data from ground level, aircraft and satellite surveys as well as the network of geomagnetic observatories and repeat stations run by Geoscience Australia and neighbouring countries. (This model is now superseded.) Available as CD-ROM package, transfer fee A$99.00 (inc.GST).

No abstract available

These data are one of a set of 13 that captures a consistent horizon and fault interpretation of approximately 35 000 km of regional, mostly deep, seismic reflection data recorded by AGSO along the north and northwestern continental margins of Australia between 1990 and 1994.

From 1995 to 2000 information from the federal and state governments was compiled for Comprehensive Regional Assessments (CRA), which formed the basis for Regional Forest Agreements (RFA) that identified areas for conservation to meet targets agreed by the Commonwealth Government with the United Nations. These 3 CDs were created as part of GA's contribution to the SW Western Australia CRA. CD1 contains final versions of all data coverages, images and shapefiles used in the project. CD2 contains the final CRA report, Executive Summary, and associated maps and figures in Arcinfo (.gra), postscript (.ps) and Web ready (.gif) formats. CD3 contains the final Minerals Assessment report and associated maps and figures in Arcinfo, postscript and Web ready formats.

From 1995 to 2000 information from the federal and state governments was compiled for Comprehensive Regional Assessments (CRA), which formed the basis for Regional Forest Agreements (RFA) that identified areas for conservation to meet targets agreed by the Commonwealth Government with the United Nations. These 5 CDs were created as part of GA's contribution to the NE Victoria CRA. CD1 contains ArcView Legends and Projects, data coverages, shapefiles, final Exec. Summary and Minerals Technical Reports, and final figures and maps. CD2 contains final reports, metadata, model descriptions, and all associated maps and figures. CD3 contains Landsat, Magnetic and Radiometric images, AcrInfo grids, and unused ArcInfo AMLs and Graphic files that were intended for map creation. CD4 contains original data supplied by custodians, staff versions of data and projects, and various edited versions of covers and shapefiles. CD5 contains integration data used during Directions report analysis.

Geoscience Australia contracted an airborne electromagnetic (AEM) survey over the Frome Embayment, South Australia, under the Australian Government's Onshore Energy Security Program. The Frome AEM survey was acquired using the Fugro Airborne Surveys (FAS) TEMPEST fixed wing time-domain electromagnetic (TEM) AEM system. The acquisition and processing of data were carried out by FAS under contract to Geoscience Australia. The Frome AEM survey consists of 32 300 line km, covering a total area of 95 000 km2 and was flown between 19 May and 2 November 2010. The survey was designed to deliver reliable, pre-competitive AEM data and scientific analysis of the energy resource potential of the Frome region of South Australia, including the flanks of the Northern Flinders Ranges, the Frome Embayment, the Olary Ranges and the northwestern Murray Basin. The survey data may also be used as an input to groundwater studies in the region. This presentation was given at a Frome AEM Workshop in Adelaide - November 2011.

When the CRCLEME project concluded at Geoscience Australia, some data was left unsorted. This directory contains that residual data. The Cooperative Research Centre for Landscape Environments and Mineral Exploration (CRC LEME) was established and supported under the Australian Government Cooperative Research Centre Program. LEME is now closed after a seven-year renewal in 2002, being the successor of the highly acclaimed CRC for Landscape Evolution and Mineral Exploration, which formally finished in June 2001. LEME's role was to apply regolith science to the challenges facing Australia in natural resource management and mineral exploration. Regolith is the surficial mantle of weathered rock, sediments, soils, biotic complexes and water that are formed by the natural processes of weathering, erosion, transportation and deposition. LEME was an unincorporated joint venture between Geoscience Australia, CSIRO (represented by the Divisions of Exploration & Mining and Land & Water), Australian National University, Curtin University of Technology, University of Adelaide, NSW Department of Primary Industries, Primary Industries and Resources South Australia and the Minerals Council of Australia. As such it had access to 155 (amounting to 78 Full Time Equivalent) research scientists, drawn from both in-kind contributions and cash-funded positions in participating organisations. In addition it had a large cohort of PhD and Honours students, supported by its Student Program. This body of research expertise was assembled into multi-disciplinary research teams, under a program structure managed by the Executive, to address LEME's strategic research priorities.

Hardcopy map was scanned in April 2002, using Intergraph MapSetter 6000 at 1:1 scale. Resolution 250 dpi. 24 bit true colour tiff. A geo-referenced grid was generated using MGE. ArcMap was used to warp the images using a 4 point affine warp. Geo-referenced images are available as 250 dpi and 125 dpi. Map extents 35?15' in North, 37?03' in South, 148? in West and 149? in East.