Legacy product - no abstract available

Legacy product - no abstract available

IAGA Working Group V-8: Analysis of the global and regional geomagnetic field and its secular variation. "It is a combination of two earlier catalogs, the IAGA catalog of national repeat station network descriptions (Barton, 1991), and the IAGA catalog of national magnetic surveys and carts (Newitt, 1993)".

Legacy product - no abstract available

This abstract is to be submitted to the Australian Society of Exploration Geophysicists for consideration as a poster to be delivered at the 22nd ASEG conference and exhibition in February 2012.

This report describes both the geomagnetic and seismological observatories at Mawson. On the geomagnetic side, the routine of absolute field measurements and the variometer system are described; final geomagnetic data are also included. The seismological recording systems and procedures make up the bulk of the seismological report. Observatory timing, power supplies, and buildings are also described. The Australian Antarctic Division provided logistic support. The geomagnetic observatory was operated as part of project 27 and the seismological observatories as part of project 10.

Legacy product - no abstract available

Throughout 1991 and 1992 a magnetic repeat station survey was carried out to collect geomagnetic field and secular variation data from the majority of sites in the network of magnetic repeat stations maintained by the Australian Geological Survey Organisation (AGSO). Data from the fifty five stations occupied in this survey coupled with data from other repeat stations and the permanent magnetic observatory network in the region will be used to update the Australian Geomagnetic Reference Field (AGRF) model to epoch 1995.0 and contribute to the global data set for magnetic field modelling.

As part of the National Environmental Geoscience Mapping Accord the Australian Geological Survey Organisation flew an airborne geophysical survey of 43 200 line km over an irregularly shaped area to the west of Tamworth, NSW from 13 February to 27 March 1995. The flight line direction was east-west and the line spacing was 200 m. Flying height was at an altitude of 80m above ground level. This survey was specifically designed to help assess the extent of soil salinity, rising water tables and land degradation on the Liverpool Plains. The new datasets will provide the framework for future landuse and exploration and assist in developing strategies for environmental management and resource development. The total magnetic intensity, gamma-ray spectrometric and digital elevation model data which were collected during the survey, have been processed and are available for purchase, in both digital (point located data and gridded) and map form, from the Australian Geological Survey Organisation. Colour and greyscale pixel image maps are also available.

Legacy product - no abstract available