Ellipsoidal physical geodesy - improved global and local gravity field modelling

椭球物理大地测量学 - 改进的全局和局部重力场建模

• 批准号: DP0663020
• 负责人: Prof Dr William Featherstone
• 金额: $ 52.57万
• 依托单位: Curtin University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2006
• 资助国家: 澳大利亚
• 起止时间: 2006-01-04 至 2011-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0663020
• 关键词: Ellipsoidal; physical; geodesy; improved; global

Improved techniques for gravity field modelling, using the ellipsoidal approach proposed in this research, will increase the accuracy of the Australian geoid model. A more accurate model of the geoid will bring great cost-benefits mainly to the Australian surveying, mapping and exploration community. For example, height determination from GPS [Global Positioning System] or similar satellite-based measurements is only possible with the aid of an accurate geoid model. This will allow the use GPS to its full capacity and save valuable time and money (by as much as a factor of 10).

利用本研究提出的椭球面方法改进重力场建模技术，将提高澳大利亚大地水准面模型的精度。一个更精确的大地水准面模型将主要为澳大利亚的测绘和勘探界带来巨大的成本效益。例如，只有借助于精确的大地水准面模型，才能从GPS[全球定位系统]或类似的基于卫星的测量中确定高度。这将允许使用GPS的全部容量，节省宝贵的时间和金钱（多达10倍）。