b'Geophysics in the surveys NewsTable 5.Seismic re\x1cection surveys (Continued)Location Client State SurveyLineGeophoneVP/SPRecordTechnique Commentsname km interval interval lengthCentralGA Qld/ Shallow~1257 VariesVaries 3-20 sec2DGA commissioned reprocessing of selected legacy AustralianSA legacy datashallow2D seismic data in Qld and SA, as part of Exploring basins & deepfor the Future, Australias Future Energy Resources legacyProject. The objective is to produce a modern industry data,standard 2D land seismic re\x1cection dataset to assist explosive,in imaging the subsurface. Reprocessing of these data vibroseis isunderway.AdavaleGA Qld Deep andVariesVaries3-20 sec2DGA commissioned reprocessing of selected legacy Basin shallowshallow2D seismic data in the Adavale Basin, Queensland legacy data & deepAustralia, Data driven Discoveries Initiative. The legacyobjective is to produce a modern industry standard data,2D land seismic re\x1cection dataset to assist in imaging explosive,the subsurface. Reprocessing of the legacy data is vibroseiscomplete and the data package will be released in the second half of 2023.Table 6.Passive seismic surveys Location Client State SurveyTotal number ofSpacing Technique Commentsname stations deployedAustralia GA Various AusArray About 180~200 kmBroad- The survey will cover all of Australia to establish continental-temporal seismicspacingband ~18scale model of lithospheric structure and serve as a stations months ofbackground framework for more dense (~50km) movable observationsseismic arrays. Deployment of this national array commenced with an initial 11 seismic stations deployed in the NT in 2021. Deployments in SA and NSW commenced in Apr 2022 and will progress through other states during 2022.NorthernGAQld/NTAusArrayAbout 265 broad- 50 kmBroad-bandThe survey covers the area between Tanami, Tennant Creek, Australia band seismic1-2 yearsUluru and the WA border. The \x1drst public data release of the stations observationstransportable array was in 2020.See: http://www.ga.gov.au/eftf/minerals/nawa/ausarray Various applications of AusArray data are described in the following Exploring for the Future extended abstracts:AusArray overview: http://pid.geoscience.gov.au/dataset/ ga/135284 Body wave tomography: http://pid.geoscience.gov.au/dataset/ga/134501Ambient noise tomography (including an updated, higherresolution 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.eduAusARRAYProject GA/GSV Victoria AusArray ~ 20~100 km Broad-band ~12-18 months of observations VictoriaVictoria temporaryData acquired from the movable array sites will add to the Collaborative seismicscienti\x1dc understanding of the Earths lithosphere on the stations national and regional scale. Phase 1 of the deployment (~100 km) was undertaken in Mar 2023.Table 7.Survey technical requirementsSurvey typeAuthor ContributorsGA ReleaseMagnetics, radiometrics and horizontalJames GoodwinBrian Minty, Ross Brodie, Mark Baigent, Yvette Mar 2023 http://pid.magnetic gradiometryPoudjomDjomani, Matt Hutchens with acknowledgementsgeoscience.gov.au/dataset/to Peter Milligan, Laz Katona and Mike Barlow ga/147457Airborne Gravity and GradiometryNegin Moghaddam andJack McCubbine and Mike Barlow Mid 2023Mark Drans\x1deld19 PREVIEW JUNE 2023'