诊断、同化与区域比较Diagnosis, assimilation, and regional comparison
数据产品的第一层是变量字典。岸线类型、潮滩面积、湿地蓝碳、C/N/P 通量、底层溶解氧、叶绿素、pH、生物群落、风暴潮水位和社会经济暴露，以同一命名、单位和空间网格表达。这样，环渤海的水交换、长三角的低氧、海峡西岸的赤潮窗口和大湾区的复合暴露才能放在同一张诊断图中。The first layer of the data products is a variable dictionary. Shoreline type, tidal-flat area, wetland blue carbon, C/N/P fluxes, bottom oxygen, chlorophyll, pH, biological communities, storm-surge water level, and socioeconomic exposure use shared names, units, and spatial grids. This allows Bohai exchange, Yangtze Delta hypoxia, Western Taiwan Strait HAB windows, and Greater Bay Area compound exposure to be read on one diagnostic map.
第二层是时空索引。现场观测、遥感反演、历史档案、沉积记录、模式再分析和社会经济统计常常来自不同尺度。统一时间戳、空间分辨率、观测来源和不确定性标识后，数据才能从“局地记录”转为“可比较证据”。The second layer is a spatiotemporal index. Field observations, remote-sensing retrievals, historical archives, sediment records, model reanalysis, and socioeconomic statistics often come from different scales. Once timestamps, spatial resolution, sources, and uncertainty tags are harmonized, local records become comparable evidence.
第三层是科学用途。数据产品用于协同演化轨迹重建、临界前兆识别、区域地球系统模式约束、数字孪生情景驱动和风险-韧性边界评估。它们收集变量，也让变量之间的关系能够被反复检验。The third layer is scientific use. Data products are used for reconstructing co-evolution trajectories, detecting early-warning signals, constraining regional Earth system models, driving digital-twin scenarios, and assessing risk-resilience boundaries. They collect variables and make relationships among variables repeatedly testable.
数据结构Data structure
- 变量名、单位、空间分辨率、时间范围、来源和处理流程Variable name, unit, spatial resolution, temporal coverage, source, and processing workflow.
- 质量等级、不确定性、适用区域、版本变更和引用方式Quality level, uncertainty, applicable regions, version notes, and citation format.
- 关联模型、图件、新闻解读和数据使用指南Related models, maps, explainers, and data-use guides.
重点变量Priority variables
岸线和潮滩变量刻画结构变化；C/N/P、溶解氧和 pH 刻画物质通量与生地化状态；叶绿素、赤潮记录和生物群落刻画生态响应；风暴潮、基础设施和人口经济暴露刻画风险受体。四类变量相互连接，才构成海岸带复杂系统的完整证据链。Shoreline and tidal-flat variables describe structural change; C/N/P, oxygen, and pH describe material fluxes and biogeochemical state; chlorophyll, HAB records, and biological communities describe ecological response; storm surge, infrastructure, and socioeconomic exposure describe risk receptors. Together they form the evidence chain for complex coastal systems.
版本更新会记录新增数据、处理方法变化和不确定性变化。对长期计划而言，版本记录和原始数据同样重要，因为临界前兆往往来自多年变化率、异常同步和恢复时间；单次观测值与多年变化率共同纳入诊断。Version updates record new data, processing changes, and uncertainty changes. For a long-term program, version records are as important as raw data because tipping signals often emerge from multi-year rates of change, synchronized anomalies, and recovery time; single observations and multi-year rates enter diagnosis together.