ECMWF daily maximum skin (air-ground interface) reservoir content below 0.2mm - Kent (UK), 2022

Demonstration Case Name Multi-hazards in the Southeast UK region Dataset Title ECMWF daily maximum skin (air-ground interface) reservoir content below 0.2mm - Kent (UK), 2022 Dataset Description This dataset consists of: ECMWF_Daily_SkinRmax_Kent2022_1km.tif a multi-layer image where each layer represents the ECMWF Daily Maximum Skin (air-ground interface) Reservoir Content for each date in 2022 for the wider Kent region in Southeast UK. ECMWF_Daily_SkinRmax_below_point2mm_binary_mask_Kent2022_1km.tif: a multi-layer binary mask image where the ECMWF Daily Maximum Skin (air-ground interface) Reservoir Content is below the threshold of 0.2mm, threshold indicative of drought preconditioning, for each date in 2022 for the wider Kent region in Southeast UK. ECMWF_Daily_SoilTmax_exceeding_27C_mask_applied_Kent2022_1km.tif: a multi-layer image where each layer represents the ECMWF Daily Maximum Skin (air-ground interface) Reservoir Content values after application of the binary mask for each date in 2022 for the wider Kent region in Southeast UK. Data was generated using code developed within the Google Earth Engine online platform and output in GeoTIFF for interoperability and comparative analysis within GIS. Key Methodologies Calculation of pixel threshold below 0.2mm for each date in the 2022 daily maximum skin reservoir content (skin_reservoir_content_max) multi-date image stack, coded in Google Earth Engine online platform. Output in raster format. Temporal Domain Daily: 1st January 2022 to 31st December 2022. Spatial Domain Geographic extent covering the region of Kent, Southeast UK. Projected Coordinate System: British National Grid (EPSG:27700) Spatial Extent Bounding Box: Upper Left (182000N, 509000E), Lower Right (95000N, 641000E) Spatial Resolution: 1km x 1km (resampled from original 11km data in GEE) Key Indicators Daily binary image stack indicating where pixels are below the threshold of 0.2mm, threshold indicative of drought preconditioning. Data Format GeoTIFF (*.tif) Source Data Primary source: ECMWF Climate Reanalysis ERA5-Land Daily Aggregated dataset (variable: ‘soil_temperature_level_1_max’), accessed through the Google Earth Engine online platform (GEE) made available to by the Copernicus Climate Data Store (https://cds.climate.copernicus.eu/) under CC-BY-4.0 licence (https://creativecommons.org/licenses/by/4.0/). Accessibility 10.5281/zenodo.17131242 Stakeholder Relevance Urban planning departmentsEmergency response organizationsInfrastructure development teamsDisaster risk assessment analysts Limitations/Assumptions Original spatial resolution of data 11km (as available in GEE). Additional Information Technical specifications: GeoTIFF format require use of a multi-band image visualisation package. Binary pixel values: 0 representing no threshold exceedance, 1 representing threshold exceedance. Non binary-mask images: pixel values represent the ECMWF Daily Maximum Skin Reservoir Content (in mm) within that pixel. Contact Information [e-mail]示范案例名称 英国东南部区域多灾种 数据集标题 ECMWF每日最大气地界面储水含量低于0.2毫米——英国肯特郡，2022年 数据集描述 本数据集包含以下文件： 1. ECMWF_Daily_SkinRmax_Kent2022_1km.tif：多层影像，每个波段代表2022年英国东南部肯特郡全域每日的ECMWF最大气地界面储水含量。 2. ECMWF_Daily_SkinRmax_below_point2mm_binary_mask_Kent2022_1km.tif：多层二值掩膜影像，每个波段对应2022年肯特郡全域每日的ECMWF最大气地界面储水含量低于0.2毫米阈值的区域，该阈值可指示干旱前期状态。 3. ECMWF_Daily_SoilTmax_exceeding_27C_mask_applied_Kent2022_1km.tif：多层影像，每个波段代表2022年肯特郡全域应用二值掩膜后的ECMWF每日最大气地界面储水含量数值。 本数据集通过谷歌地球引擎（Google Earth Engine，简称GEE）平台开发的代码生成，并以GeoTIFF格式输出，以支持在地理信息系统（GIS）中进行互操作与对比分析。 关键方法 对2022年每日最大气地界面储水含量（skin_reservoir_content_max）多时序影像栈，计算各日期像素低于0.2毫米的阈值，代码基于谷歌地球引擎平台编写，输出为栅格格式。 时间范围 每日时序：2022年1月1日至2022年12月31日。 空间范围 地理覆盖范围：英国东南部肯特郡区域。 投影坐标系：英国国家网格（EPSG:27700） 空间范围 bounding box：左上角(182000N, 509000E)，右下角(95000N, 641000E) 空间分辨率：1千米×1千米（由GEE中原始11千米数据重采样得到） 关键指标 每日二值影像栈，用于标识像素值低于0.2毫米阈值的区域，该阈值可指示干旱前期状态。 数据格式 GeoTIFF（*.tif） 源数据 原始数据源为欧洲中期天气预报中心（European Centre for Medium-Range Weather Forecasts，ECMWF）气候再分析ERA5-Land每日聚合数据集（变量：‘soil_temperature_level_1_max’），通过谷歌地球引擎平台获取，由哥白尼气候数据商店（Copernicus Climate Data Store，https://cds.climate.copernicus.eu/）以CC-BY-4.0许可（https://creativecommons.org/licenses/by/4.0/）提供。 可获取性 10.5281/zenodo.17131242 相关利益方 城市规划部门、应急响应机构、基础设施开发团队、灾害风险评估分析师 局限性与假设 数据原始空间分辨率为11千米（GEE中可获取的原始数据分辨率）。 补充信息 技术说明：GeoTIFF格式需使用多波段影像可视化工具进行查看。 二值像素值：0代表未超过阈值，1代表超过阈值。 非掩膜影像：像素值代表对应像素内的ECMWF每日最大气地界面储水含量（单位：毫米）。 联系方式 [e-mail]