地理信息尺度的三重概念及其变换

¹河南财经学院资源与环境科学系,郑州市文化路80号450002;²武汉大学资源与环境科学学院,武汉市珞喻路129号430079;³河南大学环境与规划学院,开封市明伦街85号475001

基金项目: 国家自然科学基金资助项目(40671154)

详细信息

Three-Tiered Concepts of Scale of Geographical Information and Its Transformation

¹Department of Resources and Environment Science,Henan University of Finance and Economics,80 Wenhua Road,Zhengzhou 450002,China;²School of Resources and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China;³College of Environment and Planning,Henan University,85 Minglun Street,Kaifeng 475001,China

Funds: 国家自然科学基金资助项目(40671154)

摘要: 提出了地理信息广义尺度的三重概念体系,解释了它们各自的涵义及其笛卡儿积的意义,讨论了广义尺度变换问题。
- 地理信息 /
- 三重概念 /
- 尺度变换
Abstract: At first,the connotation and the dimension of scale of geographical information are extended to full the need of describing the every aspects of it;and three types of concepts of its scale are defined as: dimensions of scale,kinds of scale,components of scale.The dimension of scale of geographical information is consisted of spatial dimension,temporal dimension and semantic dimension.The classifications of scale of geographical information are of phenomena scale,measure scale and token scale.The components of scale of geographical information are of extension,granularity(resolution) and frequence.At last the transform of scale of geographical information and issue of scale choice are discussed.
- geographical information /
- three-tiered concepts /
- transformation of scale