Abstract
Global environmental problems have attracted increasingly public attention in recent years. The GIS for managing and handling global environmental information (Global GIS) is expected to be a useful tool in global environmental studies. A tessellation scheme of a spherical surface of the globe forms one of the important basis of a Global GIS especially in using raster data. However, conventional latitude‐longitude tessellation scheme has several inconveniences, such as low efficiency in data storage and analysis. After reviewing requirements of spherical tessellation schemes for Global GIS, we propose a set of evaluation indices and make a comprehensive comparison of spherical tessellation schemes, including conventional and proposed ones. Through the comparison, North‐Up ZOT projection‐based tessellation proposed by the authors is found relatively suitable for Global GIS, especially in applying existing GIS software.
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