England WFD Site Classifications (Fish)
收藏资源简介:
This dataset visualises classification changes at individual sites across England using point data from the DEFRA Data Services Platform (DSP) for the 2016, 2019, and 2022 River Basin Management Plan cycles. Each site is represented by stacked circle-shaped symbols, with one circle per assessment year: the largest for 2016, medium for 2019, and smallest for 2022, layered centrally. This visual format highlights temporal trends at each site, allowing users to quickly assess where water body status has improved, declined, or remained unchanged over time. The dataset provides a location-specific view of classification trajectories, distinct from broader catchment or water body analyses. Key Features: Point-based, site-level classification data Three monitoring cycles: 2016, 2019, 2022 Circles symbol sizing conveys temporal sequence (smallest = latest) Supports identification of trends and intervention priorities at specific sites Coverage: England (individual classification sites)
本数据集依托英国环境、食品与农村事务部(DEFRA)数据服务平台(Data Services Platform, DSP)的点位数据,可视化呈现英格兰境内各监测点位在2016、2019及2022年流域管理计划(River Basin Management Plan)周期中的水体分类变化情况。 每个点位采用中心层叠的堆叠圆形符号表征,每个评估年度对应一个圆形:2016年圆形尺寸最大,2019年居中,2022年最小。 该可视化格式可凸显各点位的时间变化趋势,帮助用户快速研判水体水质等级随时间推移是改善、恶化还是保持不变。 本数据集提供针对特定点位的分类轨迹视图,区别于宽泛的流域或水体整体分析。 核心特征: 1. 基于点位的监测点位级分类数据 2. 覆盖3个监测周期:2016年、2019年、2022年 3. 圆形符号尺寸承载时间序列信息(尺寸最小对应最新监测周期) 4. 支持识别特定点位的变化趋势与干预优先级 覆盖范围:英格兰境内的各分类监测点位



