b'NewsGeophysics in the surveysTable 5. Seismic reflection surveys (continued)Location Client State Survey name LineGeophoneVP/SPRecordTechnique Commentskm interval interval lengthAdavale Basin GA Qld Deep and2350 Varies 3-20 sec 2D shallowGA commissioned reprocessing of selected legacy shallow& deep2D seismic data in the Adavale Basin, Queensland legacy data legacy data,Australia, Data driven Discoveries Initiative. explosive,Reprocessing of the legacy data is complete and vibroseis the data package will be released in the second half of2023.Adavale Basin GA Qld Adavale 2D1715 10 40 20 sec 2D DeepThe Adavale deep crustal seismic survey can be deep crustalCrustal/highcombined with the recently released reprocessed seismic survey resolutionseismic data to provide an important modern basin-vibroseisscale seismic dataset for the Adavale Basin which seismic survey will facilitate better understanding of the extent of salt bodies within the basin that may be able to store hydrogen, while also improving our understanding of the structural controls and potential for other resources in the basin. Processing of these data are underway, with the data expected for release Q2 2024NorthwestGA/ NT Northwest900 10 40 20 sec 2D deepThe Northwest Northern Territory (NWNT, L214) NorthernNTGS Northerncrustal/highSeismic Survey was designed to correlate well-Territory Territory deepresolutioncharacterised areas of the basin with adjacent gravity crustal seismicvibroseislows to the west and to the complex geology of survey seismic survey the Tanami Region to the south, in order to better characterise the regional crustal architecture and identify concealed sedimentary basins to better understand the energy, minerals and groundwater potential across the region. Acquisition is complete and raw data for this survey will be released in early2024.Table 6. Passive seismic surveys Location Client State SurveyTotal numberSpacing Technique Commentsname of stations deployedAustralia GA Various AusArray 149 temporal~200 kmBroad- bandThe survey covers all of Australia to establish a continental- seismic stations spacing ~18months ofscale model of lithospheric structure and serve as a observations background framework for more dense (~50 km) movable seismic arrays. Deployment of this national array was completed in June 2023. Data will be acquired over 12-18months.NorthernGA Qld/NT AusArray 247 broad-band50 km Broad-bandThe survey covers the area between Tanami, Tennant Creek, Australia seismic stations 1-2 yearsUluru and the WA border. The first public data release of the observations transportable array was in 2020.See: http://www.ga.gov.au/eftf/minerals/nawa/ausarrayVarious applications of AusArray data are described in the following Exploring for the Future extended abstracts:AusArray overview: http://pid.geoscience.gov.au/dataset/ga/135284Body wave tomography: http://pid.geoscience.gov.au/dataset/ga/134501Ambient noise tomography (including an updated, higher resolution model for the Tennant Creek to Mount Isa region): http://pid.geoscience.gov.au/dataset/ga/135130Northern Australia Moho: http://pid.geoscience.gov.au/dataset/ga/135179Australia GA Various AusArray,12 high-sensitivity~1000 km Broad-bandSemi-permanent seismic stations provide a back-bone for semi-broad-band4 yearsmovable deployments and complement the Australian permanent seismic stations observations National Seismological Network (ANSN) operated by GA, ensuring continuity of seismic data for lithospheric imaging and quality control. Associated data can be accessed through http://www.iris.eduAusARRAYGA/GSV Vic AusArray21 temporary~100 km Broad-bandData acquired from the movable array sites will add to the VictoriaVictoria seismic stations ~12-18monthsscientific understanding of the Earths lithosphere on the Collaborativeof observations national and regional scale. Phase 1 of the deployment Project (~100km) was undertaken in Mar 2023.Table 7. Survey technical requirementsSurvey type Author Contributors GA ReleaseMagnetics, radiometrics andJames Goodwin Brian Minty, Ross Brodie, Mark Baigent, Yvette PoudjomDjomani,Mar 2023horizontal magnetic gradiometry MattHutchens with acknowledgements to Peter Milligan, Laz Katonahttp://pid. geoscience.gov.au/andMike Barlow dataset/ ga/147457FEBRUARY 2024PREVIEW 27'