SCAR Spatial Data Model and Feature Catalogue

The SCAR Spatial Data Model has been developed for Geoscience Standing Scientific Group (GSSG). It was presented to XXVII SCAR, 15-26 July 2002, in Shanghai, China.

The Spatial Data Model is one of nine projects of the Geographic Information Program 2000-2002. The goal of this project is 'To provide a SCAR standard spatial data model for use in SCAR and national GIS databases.'

Activities within this project include:

1. Continue developing the SCAR Feature Catalogue and the SCAR Spatial Data Model
2. Provide SCAR Feature Catalogue online
3. Creation and incorporation of symbology
4. Investigate metadata / data quality requirements
5. Ensure compliance to ISO TC211 and OGC standards

Source: http://www.geoscience.scar.org/geog/geog.htm#stds

Spatial data are increasingly being available in digital form, managed in a GIS and distributed on the web. More data are being exchanged between nations/institutions and used by a variety of disciplines. Exchange of data and its multiple use makes it necessary to provide a standard framework. The Feature Catalogue is one component of the Spatial Data Model, that will provide the platform for creating understandable and accessible data to users. Care has been taken to monitor the utility of relevant emerging ISO TC211 standards.

The Feature Catalogue provides a detailed description of the nature and the structure of GIS and map information. It follows ISO/DIS 19110, Geographic Information - Methodology for feature cataloguing. The Feature Catalogue can be used in its entirety, or in part. The Feature Catalogue is a dynamic document, that will evolve with use over time. Considerable effort has gone into ensuring that the Feature Catalogue is a unified and efficient tool that can be used with any GIS software and at any scale of geographic information.

The structure includes data quality information, terminology, database types and attribute options that will apply to any GIS. The Feature Catalogue is stored in a database to enable any component of the information to be easily viewed, printed, downloaded and updated via the Web.

南极研究科学委员会（Scientific Committee on Antarctic Research，SCAR）空间数据模型（SCAR Spatial Data Model）是为地球科学常设科学小组（Geoscience Standing Scientific Group, GSSG）开发的。该模型于2002年7月15日至26日在中国上海举办的第27届SCAR大会上提交展示。

该空间数据模型是2000-2002年地理信息计划（Geographic Information Program）的九个项目之一。本项目的目标为：“为SCAR及各国地理信息系统（Geographic Information System, GIS）数据库的使用提供一套SCAR标准空间数据模型。”

本项目包含以下工作内容：
1. 持续推进SCAR要素目录（SCAR Feature Catalogue）与SCAR空间数据模型的开发工作
2. 提供SCAR要素目录的在线访问服务
3. 构建并整合符号系统
4. 调研元数据/数据质量相关要求
5. 确保符合ISO TC211与开放地理空间联盟（Open Geospatial Consortium, OGC）标准

数据来源：http://www.geoscience.scar.org/geog/geog.htm#stds

当前，空间数据正以数字化形式大量涌现，依托地理信息系统进行管理并通过网络分发。各国及科研机构间的数据交换愈发频繁，且被多学科领域广泛应用。数据交换与多场景复用的需求，催生了标准化框架的构建。要素目录作为空间数据模型的组成部分之一，将为用户打造易于理解、便于获取的数据共享平台。研发团队已密切关注新兴ISO TC211标准的实用性，并将其纳入考量。

要素目录详细阐述了地理信息系统与地图信息的属性特征与结构体系，遵循ISO/DIS 19110《地理信息 要素编目方法》标准。该目录可完整或部分投入使用。作为一份动态文档，它将随着实际应用的推进不断迭代完善。研发团队投入大量精力，确保要素目录成为一套统一高效的工具，可适配任意地理信息系统软件与任意尺度的地理信息应用。

其架构涵盖适用于所有地理信息系统的数据质量信息、术语规范、数据库类型与属性选项。要素目录以数据库形式存储，可通过网络便捷实现信息各组件的浏览、打印、下载与更新。