MSOA (2011) to MSOA (2021) to Local Authority District (2022) Exact Fit Lookup for EW (V2)

This is an exact fit lookup file between Middle layer Super Output Areas as at December 2011 and Middle layer Super Output Areas as at December 2021 and Local Authority Districts as at December 2022 in England and Wales. This product has been provided with a 'change indicator' field, that define the lookup between 2011 and 2021 MSOA. This field indicates which output areas / super output areas have changed between 2011 and 2021. This version 2 has had some changes to the change indicator field where splits have gone to complexes in under 10 MSOAs There are four designated categories to describe the changes, and these are as follows: U - No Change from 2011 to 2021. This means that direct comparisons can be made between these 2011 and 2021 MSOA. S - Split. This means that the 2011 MSOA has been split into two or more 2021 MSOA. There will be one record for each of the 2021 MSOA that the 2011 MSOA has been split into. This means direct comparisons can be made between estimates for the single 2011 MSOA and the estimates from the aggregated 2021 MSOA. M - Merged. 2011 MSOA have been merged with another one or more 2011 MSOA to form a single 2021 MSOA. This means direct comparisons can be made between the aggregated 2011 MSOAs’ estimates and the single 2021 MSOA’s estimates. X - The relationship between 2011 and 2021 MSOA is irregular and fragmented. This has occurred where 2011 MSOA have been redesigned because of local authority district boundary changes, or to improve their social homogeneity. These can’t be easily mapped to equivalent 2021 MSOA like the regular splits (S) and merges (M), and therefore like for like comparisons of estimates for 2011 MSOA and 2021 MSOA are not possible. Field Names – MSOA11CD, MSOA11NM, CHGIND, MSOA21CD, MSOA21NM, LAD22CD, LAD22NM, LAD22NMW Field Types – Text, Text, Text, Text, Text, Text, Text, Text Field Lengths – 9, 32, 1, 9, 39, 9, 35, 24本数据集为英格兰及威尔士地区2011年12月版中层超级输出区（Middle Layer Super Output Area，MSOA）、2021年12月版中层超级输出区与2022年12月版地方当局辖区（Local Authority District，LAD）之间的精准匹配对照表。 本数据集附带“变化标识”字段，用于界定2011版与2021版MSOA之间的匹配关系，该字段可标识2011年至2021年间发生变更的输出区/超级输出区。 本V2版本针对拆分后形成包含不足10个MSOA的复合区域的场景，对变化标识字段进行了优化调整。 本次变更共分为四类预设类别，具体如下： U：2011版至2021版无变更。此类区域可直接开展2011版与2021版MSOA的对应对比分析。 S：拆分。即单个2011版MSOA被拆分为两个及以上的2021版MSOA，原2011版MSOA每拆分出一个2021版MSOA，即对应一条数据记录。此类场景可直接将单个2011版MSOA的统计估算值与聚合后的对应2021版MSOA的统计估算值进行对比。 M：合并。即单个或多个2011版MSOA合并为一个2021版MSOA。此类场景可直接将聚合后的对应2011版MSOA的统计估算值与单个2021版MSOA的统计估算值进行对比。 X：2011版与2021版MSOA的对应关系不规则且碎片化。此类变更源于地方当局辖区边界调整，或为提升区域社会同质性而对2011版MSOA进行的重新规划。其对应关系无法像常规拆分（S）与合并（M）那样直接映射至2021版MSOA，因此无法实现2011版与2021版MSOA统计估算值的一一对应对比。 字段名称：MSOA11CD、MSOA11NM、CHGIND、MSOA21CD、MSOA21NM、LAD22CD、LAD22NM、LAD22NMW 字段类型：均为文本型（Text） 字段长度：依次为9、32、1、9、39、9、35、24（单位：字符）