study of the potential fields at different altitudes, constituting a multiscale field is a class of interpretative methods which are used to approximate depth and geometry of sources. interpretation of potential fields by this class of methods is mainly based on the recognition that the gravity or magnetic fields, generated by ideal sources (point mass, line of mass, sheet and contact) are homo...

gravity acceleration data have grand pursuit for marine applications. due to environmental effects, marine gravity observations always hold a high noise level. in this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. on the one hand, harmonic spline functions have great capability for local gravity ...

I consider a situation in which a principal commits to a mechanism first and then agents choose unobservable actions before they draw their types. The agents’ actions affect not only their payoffs directly but also a distribution of private types as well. Thus, the distribution of types is determined endogenously rather than exogeneously unlike standard mechanism design literature. Then I exten...

Policy, including technology policy, is made of language. Politicians, bureaucrats, and consultants use language to shape action and ways of thinking by fabricating rules that enable individuals to deal with unresolvable contradictions of everyday life. The evolution of geospatial ICT policy can be best understood through the language of spatial data infrastructure (SDI) initiatives and the ana...