OCS2D: Land occupation in 2 dimensions - Simplified version in 4 posts or 21 posts - Lille SCOT (MEL+CCPC)

OCS2D is the production of a two-dimensional land cover database in the **Scot de Lille** area. The Scot comprises two entities: * The European Metropolis of Lille (MEL), which brings together 95 municipalities for about one million inhabitants, territory with urban dominance (730km2 with buffer); * The Community of Communes Pévèle en Carembault (CCPC), which consists of 38 communes with a population of around 100000 inhabitants. The landscape is mainly characterised by rural areas (350 km2 with buffer). The MEL 2020 orthophotography is the reference support for the 2020 update of the OCS 2D database 2005-2015 developed by photo-interpretation in 2017. ### The basic nomenclature See metadata sheet *OCS2D: Land cover in 2 dimensions - SCoT - 2005 to 2020* (see user guide (available as a resource)): ### The nomenclature "4 items" (resources attached) (see user guide (available as a resource)): the 4-item nomenclature is a simplified version that meets the need to create indicators shared by the various players in the territory. They co-constructed this nomenclature, which provides the first shared indicators available from the OCS2D data, by breaking it down into three generalised spaces: artificialized, agricultural, and natural. It should also be noted that, under the heading ‘artificialised’, infrastructure has been differentiated. The CS-US table found on page 15 of the "user guide" resource illustrates the distribution. There are 7 CS-US7.0.0 associations that have been classified either in artificial (urban context) or in natural, thanks to a proximity analysis. 1. Artificial space 2. Agricultural area 3. Natural area 4. Infrastructure #### Matching tables: * G_OCS2D.TA_OCS2D_4_POSTES_2005_SCOT - Simplified OCS2D in 4 posts for 2005. * G_OCS2D.TA_OCS2D_4_POSTES_2015_SCOT - simplified OCS2D in 4 posts for 2015. * G_OCS2D.TA_OCS2D_4_POSTES_2020_SCOT - simplified OCS2D in 4 posts for 2020. ### The nomenclature "21 items" (see user guide (available as a resource)): The nomenclature ‘21 postes’ was devised for the creation of the atlas, with a cross between the CS and the US (gives atlases in the link to the geo2france metadata). It cannot be used for statistical purposes, as some class groupings do not match all possible uses of the OCS2D data. 1. Habitat building 2. Building of agricultural holdings 3. Commercial building 4. Industrial buildings and other economic activities 5. Building services and transport 6. Other frames 7. Roads 8. Railways 9. Airport areas 10. Navigable canals and rivers 11. Non-vegetated areas of habitat 12. Vegetated areas of the habitat 13. Other artificialised non-vegetated spaces 14. Other plant-based artificial spaces 15. Grasslands 16. Annual crops 17. Other agricultural land 18. Water surfaces 19. Wooded areas 20. Non-wooded vegetated areas 21. Non-vegetated areas #### Tables available: * G_OCS2D.TA_OCS2D_21_POSTES_2005_SCOT - OCS2D simplified into 21 posts for 2005. * G_OCS2D.TA_OCS2D_21_POSTES_2015_SCOT - OCS2D simplified into 21 posts for 2015. * G_OCS2D.TA_OCS2D_21_POSTES_2020_SCOT - OCS2D simplified into 21 posts for 2020.OCS2D是**里尔城市整合开发区域（Scot de Lille）**的二维土地覆盖数据库成果。该区域包含两个组成部分： * 欧洲里尔都会区（European Metropolis of Lille，简称MEL）：涵盖95个市镇，总人口约100万，是以城市为主导的区域（含缓冲区总面积730平方千米）； * 佩夫勒昂卡朗邦市镇共同体（Community of Communes Pévèle en Carembault，简称CCPC）：由38个市镇组成，总人口约10万，区域景观以乡村为主（含缓冲区总面积350平方千米）。 里尔欧洲都会区2020年正射影像，是2017年通过相片解译构建的2005-2015年OCS2D数据库2020版更新的参考基准。 ### 基本分类体系 详见元数据表《OCS2D：二维土地覆盖 - SCoT - 2005至2020》（可参阅作为资源提供的用户指南）： ### “4类”分类体系（附相关资源） （可参阅作为资源提供的用户指南）： 该4类分类体系为简化版本，可满足构建区域各参与方共享指标的需求。区域各方共同协作制定了该分类体系，通过将土地划分为人工化、农业、自然三大广义空间，生成了首套可基于OCS2D数据获取的共享指标。需特别说明的是，在“人工化空间”分类下，已对基础设施进行了差异化区分。 用户指南资源第15页所载的CS-US对照表展示了该分类的对应关系。 通过邻近性分析，已将7组CS-US7.0.0关联关系分别归类为人工（城市语境）或自然空间。 四类分类如下： 1. 人工空间 2. 农业区域 3. 自然区域 4. 基础设施 #### 匹配表： * G_OCS2D.TA_OCS2D_4_POSTES_2005_SCOT —— 2005年4分类简化版OCS2D * G_OCS2D.TA_OCS2D_4_POSTES_2015_SCOT —— 2015年4分类简化版OCS2D * G_OCS2D.TA_OCS2D_4_POSTES_2020_SCOT —— 2020年4分类简化版OCS2D ### “21类”分类体系（附相关资源） （可参阅作为资源提供的用户指南）： “21类”分类体系为制作图集而设计，结合了CS与US分类体系（可在geo2france元数据链接中获取对应图集）。由于部分类别分组无法适配OCS2D数据的所有应用场景，该分类体系不可用于统计用途。 21个分类如下： 1. 居住建筑 2. 农业生产设施建筑 3. 商业建筑 4. 工业建筑及其他经济活动用房 5. 服务及交通配套建筑 6. 其他框架类建筑 7. 道路 8. 铁路 9. 机场区域 10. 通航运河与河道 11. 居住用地非植被区域 12. 居住用地植被区域 13. 其他人工非植被空间 14. 其他人工植被空间 15. 草地 16. 一年生作物种植地 17. 其他农业用地 18. 水面 19. 林区 20. 非林木植被区域 21. 非植被区域 #### 可用数据表： * G_OCS2D.TA_OCS2D_21_POSTES_2005_SCOT —— 2005年21分类简化版OCS2D * G_OCS2D.TA_OCS2D_21_POSTES_2015_SCOT —— 2015年21分类简化版OCS2D * G_OCS2D.TA_OCS2D_21_POSTES_2020_SCOT —— 2020年21分类简化版OCS2D