b'Geophysics in the SurveysNewsGeological Survey of Victoria: Airborne gravity surveying for geodesy andgeologyThe Geological Survey of Victoria, Surveyor-General Victoria and Geoscience Australia are collaborating to undertake airborne gravity surveying across southeast Victoria in 2020/21. Surveys covering approximately 100 000 square kilometres are being planned, covering the Victorian coast from Cape Otway to Cape Howe, including metropolitan Melbourne and the Australian Alps (Figure 1).The new airborne gravity surveys will provide consistent and evenly distributed gravity measurements across diverse land types including urban and rural areas, mountainous and coastal terrain and parks/reserves with minimal disturbance to land users and the environment. Additional gravity data is also required across southeast Australia to improve the geoid model which will form the basis of the Australian Vertical Working Surface (AVWS). The AVWS is a significant part ofFigure 1.Proposed airborne gravity survey area, Victoria.Geoscience Australias Positioning Australia program. The exercise will upgrade andgeophysical observations across thenational public geoscience databases modernise the national height referenceSoutheast Lachlan Crustal Transectand will be made publicly available system, providing users with accurate(see Preview 202, p19-20), a keythrough Geoscience Australia and real-world heights from GNSS positioning,geological reference section for easternthe Geological Survey of Victoria. Visit instantly and seamlessly. Australia. The results will improvewww.propertyandlandtitles.vic.gov.au/The new airborne gravity surveythe understanding of the geologicalsurveying/airborne-gravity-survey for contributes to the collation ofarchitecture, earth resources potentialproject updates.fundamental geoscience datasets thatand natural geological hazards of support applied geoscience researcheastern Victoria.in Victoria. The data acquired acrossSuzanne Haydoneastern Victoria will support modellingThe airborne gravity survey data willGeological Survey of Victoriaand interpretation of geological andbe incorporated into existing state andSuzanne.Haydon@ecodev.vic.gov.auThe ASEG in social mediaHave you liked/followed/subscribed to our social media channels? We regularly share relevant geoscience articles, events, opportunities and lots more. Subscribe to our Youtube channel for recorded webinars and other content. Email our Communications Chair Millicent Crowe at Communications@aseg.org.au for suggestions for our social media channels.Facebook: https://www.facebook.com/AustralianSocietyOfExplorationGeophysicistsLinkedIn company page: https://www.linkedin.com/company/australian-society-of-exploration-geophysicists/Twitter: https://twitter.com/ASEG_newsYouTube: https://www.youtube.com/channel/UCNvsVEu1pVw_BdYOyi2avLgInstagram: https://www.instagram.com/aseg_news/ 23 PREVIEW OCTOBER 2020'