Title :
Barrier Reef Airborne Gravity Survey (BRAGS´99)
Author :
Sproule, David ; Kearsley, A.H.W. ; Olesen, Arne ; Forsberg, Rene
Author_Institution :
Sch. of Geomatic Eng., New South Wales Univ., Sydney, NSW, Australia
Abstract :
Support from the Australian Hydrographic Office made it possible to install and operate a gravimeter in their Fokker F-27 aircraft which carries their Laser Airborne Depth Sounding (LADS) system. The LADS system operated in the Great Barrier Reef region, northeast Australia, at that time. This shallow water area is a major gravimetric data void, and thus degrades the gravimetric geoid models in and around the area. The aim of the airborne gravity measurements was both to gather new data in the area to improve the geoid and to examine the feasibility of combined airborne bathymetry and gravity surveys. The system performance is validated by internal crossover analysis and comparison to existing data. The contribution of the newly acquired data to geoid modelling is examined
Keywords :
bathymetry; gravity; oceanographic regions; optical radar; remote sensing by laser beam; Australian Hydrographic Office; BRAGS´99; Barrier Reef Airborne Gravity Survey; Fokker F-27 aircraft; Great Barrier Reef region; LADS system; Laser Airborne Depth Sounding system; airborne bathymetry; airborne gravity measurements; geoid modelling; gravimeter; gravimetric data; gravimetric geoid models; gravity surveys; internal crossover analysis; northeast Australia; shallow water area; system performance; Accelerometers; Acoustical engineering; Aerospace engineering; Aircraft propulsion; Australia; Global Positioning System; Gravity measurement; Military aircraft; Sea measurements; Springs;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978291
