No abstract available

No abstract available

Upgrade for software package for geochemical modelling released in 1999. Available from OEMD on request to Evgeniy Bastrakov (a password is set for a particular user).

This is a CD rom that enables users to obtain relevant information on how to invest in mineral exploration within Australia.

Generic Geoscience Australia, web based, external database entry kit

No abstract available

Software to calculate the Australian Geomagnetic Reference Field, a regional geomagnetic field model for the Australian region for the period 1995 to 2005

The High Quality Geophysical Analysis (HiQGA) package is a fully-featured, Julia-language based open source framework for geophysical forward modelling, Bayesian inference, and deterministic imaging. A primary focus of the code is production inversion of airborne electromagnetic (AEM) data from a variety of acquisition systems. Adding custom AEM systems is simple using Julia’s multiple dispatch feature. For probabilistic spatial inference from geophysical data, only a misfit function needs to be supplied to the inference engine. For deterministic inversion, a linearisation of the forward operator (i.e., Jacobian) is also required. HiQGA is natively parallel, and inversions from a full day of production AEM acquisition can be inverted on thousands of CPUs within a few hours. This allows for quick assessment of the quality of the acquisition, and provides geological interpreters preliminary subsurface images of EM conductivity together with associated uncertainties. HiQGA inference is generic by design – allowing for the analysis of diverse geophysical data. Surface magnetic resonance (SMR) geophysics for subsurface water-content estimation is available as a HiQGA plugin through the SMRPInversion (SMR probabilistic inversion) wrapper. The results from AEM and/or SMR inversions are used to create images of the subsurface, which lead to the creation of geological models for a range of applications. These applications range from natural resource exploration to its management and conservation.

The source code for the AusSeabed Survey Coordination Tool. Code is located at: https://github.com/ausseabed/survey-request-and-planning-tool The AusSeabed Survey Coordination tool (ASB SCT) is a tool designed by GA and FrontierSI in collaboration with the AusSeabed Steering Committee and broader community. Its intent is to provide a location for, and consistency in specification of bathymetric data acquisition for scientific research purposes. As of March 2022, the ASB SCT supports three key functions: 1) Survey Planning: the ASB SCT allows the community to publicise their plans to survey in the Austrlian Marine Estate. The tool ingests a spatial outline of the intended location as well as the target data types and focus for the survey. The tool also collects the contact details for the chief investigator and anticipated survey dates. Once published, the survey plan is visible on the upcoming surveys spatial layer on the AusSeabed portal. 2) Hydroscheme Industry Partnership Program Requests: the ASB SCT hosts the online form for submitting survey requests to the Australian Hydrographic Office (AHO) for consideration by the HydroScheme Industry Partnership Programme. 3) Areas of Interest submission: the ASB SCT ingests submissions that describe a users seabed mapping or biodiversity characterisation data needs and location. This information is useful in identifying regions of mutual interest and boosting collaborative multi-disciplinary surveys. Understanding regions with high levels of overlapping data needs can also help inform high-value survey activities and legacy data release priorities.

No abstract available