农村集体土地所有权确权登记发证成果逐年进行更新备案,为确保更新后的数据库成果符合地籍数据库入库标准,依据数据标准设计了正确、全面的质检规则,基于质检规则并利用ArcGIS Model Builder、Python语言开发了数据库质检软件。本文以...农村集体土地所有权确权登记发证成果逐年进行更新备案,为确保更新后的数据库成果符合地籍数据库入库标准,依据数据标准设计了正确、全面的质检规则,基于质检规则并利用ArcGIS Model Builder、Python语言开发了数据库质检软件。本文以怀集县为例,通过该软件实现了入库前自动化、可视化检查,通过ArcGIS Server将软件设计的质检模型发布为GP服务,可为国土资源日常管理提供强大的工具保障。展开更多
Topographic shielding(TS) is an important factor in cosmogenic nuclide surface exposure dating. The development of geographic information systems(GIS) and the availability of digital elevation models(DEMs) make it pos...Topographic shielding(TS) is an important factor in cosmogenic nuclide surface exposure dating. The development of geographic information systems(GIS) and the availability of digital elevation models(DEMs) make it possible to derive this factor directly from a DEM. Most available GIS models derive the TS factors for an area(all cells in a DEM) without the consideration of surface conditions of individual sites, such as the strike, dip,and height above ground, into the calculation. This paper presents a new GIS model to derive the TS factors for discrete sample sites. This model uses the Skyline and Skyline Graph functions in ArcGIS to extract the set of azimuth and elevation angles of topographic obstructions around each site from a DEM(considering the sample height above ground)and then incorporates the strike and dip information of the sample surface to derive the TS factor. All processing tools and steps are streamlined in ArcGIS modelbuilder and this model can be run like a standard ArcGIS geoprocessing tool. It provides an easy and user-friendly means to derive the TS factors for discrete samples based on a DEM and the measured strike, dip and sample height for each site.展开更多
文摘农村集体土地所有权确权登记发证成果逐年进行更新备案,为确保更新后的数据库成果符合地籍数据库入库标准,依据数据标准设计了正确、全面的质检规则,基于质检规则并利用ArcGIS Model Builder、Python语言开发了数据库质检软件。本文以怀集县为例,通过该软件实现了入库前自动化、可视化检查,通过ArcGIS Server将软件设计的质检模型发布为GP服务,可为国土资源日常管理提供强大的工具保障。
基金support by the National Science Foundation of the United States(Grant No.BCS-1227018)the National Nature Science Foundation of China(Grant No.41328001)
文摘Topographic shielding(TS) is an important factor in cosmogenic nuclide surface exposure dating. The development of geographic information systems(GIS) and the availability of digital elevation models(DEMs) make it possible to derive this factor directly from a DEM. Most available GIS models derive the TS factors for an area(all cells in a DEM) without the consideration of surface conditions of individual sites, such as the strike, dip,and height above ground, into the calculation. This paper presents a new GIS model to derive the TS factors for discrete sample sites. This model uses the Skyline and Skyline Graph functions in ArcGIS to extract the set of azimuth and elevation angles of topographic obstructions around each site from a DEM(considering the sample height above ground)and then incorporates the strike and dip information of the sample surface to derive the TS factor. All processing tools and steps are streamlined in ArcGIS modelbuilder and this model can be run like a standard ArcGIS geoprocessing tool. It provides an easy and user-friendly means to derive the TS factors for discrete samples based on a DEM and the measured strike, dip and sample height for each site.
