Terrain - Slope Map

This map provides a colorized representation of slope, generated dynamically using server-side slope function on the Terrain layer. The degree of slope steepness is depicted by light to dark colors - flat surfaces as gray, shallow slopes as light yellow, moderate slopes as light orange and steep slopes as red-brown. A scaling is applied to slope values to generate appropriate visualization at each map scale. This service should only be used for visualization, such as a base layer in applications or maps. Note: If access to non-scaled slope values is required, use the Slope Degrees or Slope Percent functions, which return values from 0 to 90 degrees, or 0 to 1000%, respectively. Units: Degrees Update Frequency: Quarterly Coverage: World/Global Data Sources: This layer is compiled from a variety of best available sources from several data providers. To see the coverage and extents of various datasets comprising this service in an interactive map, see World Elevation Coverage Map. What can you do with this layer? Use for Visualization: Yes. This colorized slope is appropriate for visualizing the steepness of the terrain at all map scales. This layer can be added to applications or maps to enhance contextual understanding. Use for Analysis: No. 8 bit color values returned by this service represent scaled slope values. For analysis with non-scaled values, use the Slope Degrees or Slope Percent functions. For more details such as Data Sources, Mosaic method used in this layer, please see the Terrain layer. This layer allows query, identify, and export image requests. The layer is restricted to a 5,000 x 5,000 pixel limit in a single export image request. This layer is part of a larger collection of elevation layers that you can use to perform a variety of mapping and analysis tasks.

本地图提供了坡度的彩色可视化效果，通过地形图层（Terrain layer）的服务端坡度函数动态生成。坡度陡缓程度由浅至深的色彩予以呈现：平坦地表为灰色，缓坡为浅黄色，中等坡度为浅橙色，陡坡则为红棕色。系统针对坡度数值应用了缩放处理，以在各类地图比例尺下生成适配的可视化效果。本服务仅可用于可视化场景，例如作为应用或地图中的底图图层。
注：若需获取未经过缩放的原始坡度数值，请使用坡度度数（Slope Degrees）或坡度百分比（Slope Percent）函数，二者分别返回0至90度或0至1000%的数值。
单位：度
更新频率：季度
覆盖范围：全球
数据源：本图层由多家数据供应商提供的各类最优可用数据源整合编译而成。如需在交互式地图中查看组成该服务的各类数据集的覆盖范围与空间范围，请参阅《全球高程覆盖地图》（World Elevation Coverage Map）。
本图层的可用场景：
可视化：支持。该彩色坡度图层适用于全比例尺下的地形陡缓可视化，可添加至应用或地图中以增强场景的语境理解度。
分析：不支持。本服务返回的8位色彩值代表经过缩放处理的坡度数值。如需使用未缩放数值开展分析，请使用坡度度数或坡度百分比函数。如需了解更多细节（例如本图层所采用的镶嵌拼接方法），请参阅地形图层。
本图层支持查询、要素识别与影像导出请求，单次影像导出请求的像素上限为5000×5000。本图层隶属于更广泛的高程图层集合，可用于执行各类制图与分析任务。