Modeling Earth's Global Gravity Field with 100-Meter Resolution
A new gravity modeling initiative of Curtin University (Perth, Australia) and the Technical University of Munich (Germany) addresses this issue, with the goal of refining GOCE gravity field maps with terrestrial gravity information globally to ultra-fine, 100-meter spatial resolution where data permits. This is the first-ever effort to create local-resolution gravity field maps with global coverage. The initiative will create a composite model incorporating the latest GOCE satellite and terrestrial gravity data, high-resolution topography, and mass-density models to yield a new zero surface for topographic mapping worldwide and achieve 100-meter resolution for all land areas of our planet. This hundred-fold improvement promises benefits in areas ranging from climate change studies to surveying.