quality of spatial data的意思|示意

The temporal and spatial characteristics of surface water quality in Jiyun river are analyzed based on environmental measurement data.

通过对不同时段和不同监测点环境监测数据的对比分析，研究蓟运河干流地表水质的时空变化特征。

Hence, the quality of GIS spatial data, especially the uncertainty of spatial data, is becoming more and more important.

因此，空间数据的质量，尤其是空间数据的不确定性变得越来越重要。

Discusses the basic theory, implementation steps of attribute connection by spatial position, and puts up with the countermeasures for the quality control and check of the spatial data.

探讨了空间位置的属性连接方法的理论基础与实施步骤，并提出了空间数据的质量控制与检查的对策。

The basic spatial database is the core of the digital City, and the quality of spatial data is the key factor in database construction.

基础空间数据库是数字城市的核心，而数据质量的高低又是数据库建设成功与否的关键。

At present, the most common product of spatial data is "4d", and each of them have had its own data quality model.

目前空间数据产品主要表现为“4d”产品，并已分别建立了相应的数据质量模型。

Based on the monitoring data on water quality and space data, a database of water quality and spatial distribution was established.

将水质监测数据与空间数据相结合，建立了具有时空特征的水质数据库。