Connecticut Steep Slope Areas
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Overview This Feature Service provides detailed geographic information on steep slope areas within the state of Connecticut. This layer was derived from the 2023 Digital Elevation Model from the 2023 Spring imagery and lidar capture. It is developed to support planning, environmental management, and risk assessment related to slope stability. Details about layer development: https://github.com/ctgisoffice/steep_slopes Feature Layers Steep Slope 10 ft: This layer maps areas with steep slopes derived from a 10-feet per pixel DEM, providing details such as slope percentage, municipality, and council of governments (COG) region. It offers data for assessing terrain steepness over larger vertical intervals. Steep Slope 2 ft: This layer captures steep slopes derived from a 2-foot per pixel DEM, allowing for more detailed slope analysis at a smaller vertical resolution. Similar attribute details like slope percent, municipality, and COG are included, supporting higher-resolution terrain studies. Geographic Coverage The data covers the landscape of Connecticut, focusing on areas with significant slope gradients that may impact land use and development. Classifications Agency: OPM Sensitivity: Public Currency (time) Created Data: 2026 Update Frequency (estimated): none Lineage Originated: Derived from the 2023 Digital Elevation Model from the 2023 Spring imagery and lidar capture Attributes Slope_Percent - The category of percent steep slope. Moderate (10%-15%), Steep (15%-20%), Very Steep (20%+). Muni - Municipality COG - Council of Governments Scale Range State (1:5,000,000) Credits Connecticut GIS Office
概述 本要素服务提供康涅狄格州境内陡坡区域的详细地理信息。本图层基于2023年春季影像与激光雷达（lidar）采集生成的2023年数字高程模型（Digital Elevation Model，DEM）衍生而来，旨在支撑与边坡稳定性相关的规划、环境管理及风险评估工作。图层开发详情请见：https://github.com/ctgisoffice/steep_slopes ## 要素图层 ### 陡坡10英尺图层（Steep Slope 10 ft） 本图层基于每像素10英尺的数字高程模型（DEM）绘制陡坡区域，包含坡度百分比、市政辖区及政府联合委员会（Council of Governments，COG）区域等信息，可用于较大垂直间隔下的地形陡度评估。 ### 陡坡2英尺图层（Steep Slope 2 ft） 本图层基于每像素2英尺的DEM绘制陡坡区域，可在更小的垂直分辨率下开展更精细的坡度分析，包含坡度百分比、市政辖区及COG等同类属性信息，可支撑高分辨率地形研究。 ## 地理覆盖范围 本数据集覆盖康涅狄格州全域，重点关注可能影响土地利用与开发的高坡度梯度区域。 ## 分类信息 归口机构：OPM 敏感级别：公开 数据时效性（时间维度）：创建于2026年 更新频率（预估）：无更新计划 数据溯源：基于2023年春季影像与激光雷达采集生成的2023年数字高程模型（DEM）衍生而来 ## 属性字段说明 Slope_Percent：坡度百分比分类字段，分为缓坡（10%-15%）、陡坡（15%-20%）、极陡坡（20%及以上）三个等级 Muni：市政辖区 COG：政府联合委员会 比例尺范围：全州级（1:5,000,000） 数据提供方：康涅狄格州地理信息系统办公室
