Urban Heat Risk Assessment for İzmir (Türkiye): Land Surface Temperature and Vulnerable Population-Based Risk Mapping (2022–2025) - CRIZ-ERS

This dataset contains the urban heat risk assessment for İzmir Metropolitan Area developed under the CLIMAAX project. Heat risk is calculated by combining: Hazard: Classified Land Surface Temperature (LST) derived from Landsat 8 (2022–2025) Exposure: Rasterised vulnerable population (age-disaggregated groups) The resulting heat risk index ranges from 2 (very low) to 20 (very high). All spatial layers are provided at 30 m resolution. File-Level Descriptions LST_2022_2025.zip LST_2022_2025.tifMulti-band Land Surface Temperature raster (°C) derived from Landsat 8/9 imagery (2022–2025). lst_chart.csvTime series of mean LST values used for seasonal analysis and visualisation. population_raster.zip - Population rasters 0_4.tifRasterised population density (age 0–4 years). 5_9.tifRasterised population density (age 5–9 years). 60_64.tifRasterised population density (age 60–64 years). 65+.tifRasterised population density (age 65+ years). Population_raster_stack.tifSummed vulnerable population raster used in exposure classification. Risk_Rasters.zip - All risk raster outputs risk_LST.tifClassified LST hazard layer (1–10 scale). risk_pop.tifClassified vulnerable population exposure layer (1–10 scale). Possible_heat_risk_level_to_vulnerable_population.tifComposite heat risk index raster (2–20 scale). Plots.zipRisk assessment visual outputs. heatwave_risk_analysis.ipynbJupyter Notebook implementing the full urban heat risk workflow.本数据集包含在CLIMAAX项目框架下开发的伊兹密尔大都市区城市热风险评估成果。 热风险的计算通过融合以下两类因子完成： - 灾害因子：基于Landsat 8（2022–2025年）影像反演得到的分类地表温度（Land Surface Temperature, LST） - 暴露因子：栅格化的分年龄组脆弱人口数据 最终生成的热风险指数取值范围为2（极低）至20（极高）。所有空间图层的空间分辨率均为30米。 ### 文件层级说明 1. **LST_2022_2025.zip** 内含LST_2022_2025.tif：基于Landsat 8/9影像（2022–2025年）反演得到的多波段地表温度栅格数据（单位：摄氏度）；用于季节分析与可视化的平均地表温度时间序列数据存储于lst_chart.csv。 2. **population_raster.zip - 人口栅格数据集** 包含以下文件： - 0_4.tif：0–4岁年龄组的栅格化人口密度数据 - 5_9.tif：5–9岁年龄组的栅格化人口密度数据 - 60_64.tif：60–64岁年龄组的栅格化人口密度数据 - 65+.tif：65岁及以上年龄组的栅格化人口密度数据 - Population_raster_stack.tif：用于暴露度分类的脆弱人口总和栅格数据 3. **Risk_Rasters.zip - 全部热风险栅格输出文件** 包含以下文件： - risk_LST.tif：分类后的地表温度灾害图层（1–10分级） - risk_pop.tif：分类后的脆弱人口暴露度图层（1–10分级） - Possible_heat_risk_level_to_vulnerable_population.tif：复合热风险指数栅格数据（2–20分级） 4. **Plots.zip**：热风险评估可视化成果 5. **heatwave_risk_analysis.ipynb**：实现完整城市热风险工作流的Jupyter Notebook