2011 Lower layer Super Output Area (Boundary)

Which layer should I use? (choose from the list below) This dataset is available in four layers: BFE, BFC, BGC and BSC. Select the layer that best suits your intended use. For example, if you are carrying out analytical work, we recommend using the full‑resolution BFC or BFE layers. However, if you are creating a map or visualisation, use the generalised BGC or BSC layers instead. Layer Description BFE Full Extent (BFE) – Full resolution boundaries go to the Extent of the Realm (Low Water Mark) and are the most detailed of the boundaries BFC Full Clipped (BFC) – Full resolution boundaries that are clipped to the coastline (Mean High Water Mark) BGC Generalised Clipped (BGC) - Generalised to 20m and clipped to the coastline (Mean High Water Mark) BSC Super Generalised Clipped (BSC) – Generalised to 200m and clipped to the coastline (Mean High Water Mark) Layer Description: Lower layer Super Output Area boundaries are a polygon representation of LSOAs. They were created and designed to improve the reporting of small area statistics. Change Log: 20/05/2026: Initial Release应选择何种图层？（请从以下列表中选取） 本数据集共包含四个图层：BFE、BFC、BGC与BSC，请根据实际使用需求选择最适配的图层。例如，若开展分析类工作，推荐使用全分辨率的BFC或BFE图层；若用于制作地图或可视化成果，则应选用经过概化处理的BGC或BSC图层。 图层说明： BFE 全范围图层（Full Extent, BFE）：全分辨率边界覆盖至领地范围（低潮线），为所有边界图层中细节精度最高的一类。 BFC 全裁剪图层（Full Clipped, BFC）：全分辨率边界经裁剪至海岸线（平均高潮线）范围。 BGC 概化裁剪图层（Generalised Clipped, BGC）：边界经20米尺度概化处理，并裁剪至海岸线（平均高潮线）范围。 BSC 超概化裁剪图层（Super Generalised Clipped, BSC）：边界经200米尺度概化处理，并裁剪至海岸线（平均高潮线）范围。 图层说明：下层超级输出区（Lower Layer Super Output Area, LSOA）边界为LSOA的多边形矢量表达，其设计初衷是优化小区域统计数据的汇报与展示。 更新日志：2026年5月20日：首次发布