Standard Area Measurements for the County and Unitary Authorities (December 2024) in the UK

This CSV file contains the Standard Area Measurements (SAM) for the counties and unitary authorities in the United Kingdom as at 31 December 2024. All measurements provided are ‘flat’ as they do not take into account variations in relief e.g. mountains and valleys. Measurements are given in hectares (10,000 square metres) to 2 decimal places. Four types of measurements are included: total extent (AREAEHECT), area to mean high water (coastline) (AREACHECT), area of inland water (AREAIHECT) and area to mean high water excluding area of inland water (land area) (AREALHECT).本逗号分隔值（CSV）文件包含截至2024年12月31日英国各郡及单一管理区的标准面积测量值 (Standard Area Measurements, SAM)。所有测量值均为‘平面面积’，未计入山地、谷地等地形起伏的影响。测量单位为公顷（10000平方米），精确至小数点后两位。本次数据集包含四类面积测量指标：总幅员面积（AREAEHECT）、平均高潮位（海岸线）覆盖面积（AREACHECT）、内陆水域面积（AREAIHECT），以及扣除内陆水域面积后的平均高潮位覆盖面积（陆地面积，AREALHECT）。