浅析GIS空间数据不确定性概念模型

对空间数据不确定性的研究，大多数都是针对数据本身进行的，很少针对地理空间数据实际应用的不确定性展开研究，由于各种不确定性之间也常常是相互联系、相互影响，各种不确定性之间也存在很大的相关性。对地理空间数据的应用范围，以及在规定的应用范围内将产生怎样的应用结果进行不确定性评定，远比只研究地理空间数据本身的不确定性更为复杂。从目前GIS的空间数据不确定性所存在的问题出发．在介绍空间数据不确定性概念、形成的原因及一般的空间数据流程的基础上，对空间数据不确定性概念模型的建立及其模型进行了阐述，可以对空间数据不确定性的研究起到一定的借鉴作用。

The Uncertainty Conceptual Model of GIS Spatial Data

At present, the researches on the data uncertainty have almost all aimed at the data themselves, and have seldom aimed at the practical application. Since various uncertainties are interrelated and influenced each other, they have much relativity. The research on the range of spatial data application and the resulted uncertainty assessment are much more important than those on spatial data themselves. Based on the introduction of the conception, the course and the flow of spatial data, this paper proceeded from the existed problems in spatial data uncertainty, the establishment and the function of the spatial data uncertainty conception model are set forth. The purpose of this paper is to offer a few commonplace remarks by way of introduction so that others may come up with valuable opinions and hopes to have certain reference effect.