NOAA HMS Fire Detection

This layer shows potential fire locations identified on satellite imagery by the NOAA Hazard Mapping System (HMS) that are deemed to be associated with biomass burning, including wildfires, prescribed and agricultural fires. This is a blended product composed of fire detection data from GOES/ABI, the JPSS/VIIRS and EOS/MODIS sensors. A quality control procedure is performed using both machine- and analyst-based data screening, thereby discarding detections associated with industrial activity (ex., steel mills, gas flares, power plants) as well as potential false alarms caused by solar panels and other highly reflective surfaces, while also correcting for potential omission errors in the automated satellite fire products. A new daily map is typically initiated around 7-8am Eastern Time, and updated multiple times until the next morning as data becomes available. The information on fire position should be used as general guidance and for strategic planning. Tactical decisions, such as the activation of a response to fight these fires and evacuation efforts, should not be made without other information to corroborate the fire's existence and location. Users should note: The initial HMS product for the current day is created and updated by a satellite analyst roughly between 8am and 10am Eastern Time. After 10am, the analysis is fine-tuned as time permits as additional satellite data becomes available. Areas of smoke are analyzed and added to the analysis during daylight hours as visible satellite imagery becomes available. The product is finalized and "completed" for the archive the following morning - generally by around 8:00am. The fire sizes depicted in the product are primarily determined by the field of view of the satellite instrument, or the resolution of the analysis tool. They should not be used to estimate specific fire perimeters. The ability to detect fires and smoke can be compromised by many factors, including cloud cover, tree canopy, terrain, the size of the fire or smoke plume, the time of the day, etc. The satellite sensors used to detect fires are sensitive to heat sources and reflected sunlight. Analysts do their best to distinguish between fires and other heat sources or highly reflective surfaces, such as factories, mines, gas flares, solar panels, clouds, etc. but some false detects do get included in the analysis. Email your questions to the HMS fire team at: [e-mail]本图层展示了由美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）灾害测绘系统（Hazard Mapping System, HMS）通过卫星影像识别出的潜在火灾点位，这些点位被认定与生物质燃烧相关，包括野火、计划性烧除及农业用火。该产品为融合型数据集，整合了地球静止业务环境卫星/先进基线成像仪（GOES/ABI）、极轨运行环境卫星系统/可见光红外成像辐射仪套件（JPSS/VIIRS）以及地球观测系统/中分辨率成像光谱仪（EOS/MODIS）传感器的火灾探测数据。团队采用机器学习与人工审核相结合的数据筛查流程开展质量控制，剔除与工业活动（如钢厂、天然气火炬、发电厂）相关的探测结果，以及由太阳能面板等强反射表面引发的潜在误报，同时修正自动化卫星火灾产品中可能存在的漏检问题。通常每日新地图会在美国东部时间上午7至8点左右生成，并在次日凌晨前随新获取的卫星数据多次更新。本图层提供的火灾位置信息仅可作为通用指引与战略规划参考，针对灭火行动启动、人员疏散等战术决策，需结合其他佐证信息确认火灾的存在与位置后方可实施。用户需留意：当日初始HMS产品由卫星分析师于美国东部时间上午8时至10时左右生成并更新。上午10时后，随更多卫星数据获取，分析师将根据时间允许情况对分析结果进行微调。日间可获取可见光卫星影像时，烟雾区域将被识别并补充至分析结果中。该产品将于次日凌晨（通常不晚于上午8时）最终定稿并归档。本产品中展示的火灾面积主要由卫星仪器的视场范围或分析工具的分辨率决定，不可用于估算具体火灾边界。火灾与烟雾的探测能力可能受诸多因素影响，包括云层覆盖、林冠层、地形、火灾或烟羽规模、观测时段等。用于探测火灾的卫星传感器对热源与反射太阳光较为敏感，分析师会尽力区分火灾与其他热源或强反射表面（如工厂、矿山、天然气火炬、太阳能面板、云层等），但仍可能存在少量误报被纳入分析结果。如有疑问，请发送邮件至HMS火灾团队：[e-mail]