地理学中所采用的表现模型多种多样，例如各种地图、航空和航天遥感图像、统计图表、剖面图等，但是地图是地学中使用最普遍、也是最重要的模型。从模型的特性和实质来看，-Geography in the model used in a variety of performance, such as the various maps, aerial and space remote sensing images, charts, profiles, etc., but the map is used to