VIIRS (S-NPP) I Band 375 m Active Fire Product NRT (Vector data)

Near real-time (NRT) Suomi National Polar-orbiting Partnership (Suomi NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) Active Fire detection product is based on that instrument's 375 m nominal resolution data. Compared to other coarser resolution (≥1km) satellite fire detection products, the improved 375 m data provide greater response over fires of relatively small areas, as well as improved mapping of large fire perimeters. Consequently, the data are well suited for use in support of fire management (e.g., near real-time alert systems), as well as other science applications requiring improved fire mapping fidelity. The 375 m product complements the baseline Suomi NPP/VIIRS 750 m active fire detection and characterization data, which was originally designed to provide continuity to the existing 1 km Earth Observing System Moderate Resolution Imaging Spectroradiometer (EOS/MODIS) active fire data record. Due to frequent data saturation issues, the current 375 m fire product provides detection information only with no sub-pixel fire characterization.

VNP14IMGTDL_NRT are available through NASA FIRMS in the following formats: TXT, SHP, KML, WMS. These data are also provided through the LANCE FIRMS Fire Email Alerts. Please note only the TXT and SHP files contain all the attributes.

近实时（NRT）芬兰国家极地轨道合作伙伴关系（Suomi NPP）可见光红外成像辐射计套装（VIIRS）主动火灾检测产品基于该仪器375米标准分辨率的观测数据。相较于其他较粗分辨率（≥1公里）的卫星火灾检测产品，改进后的375米数据在较小区域火灾的响应上提供了更优的表现，同时亦提升了大型火灾边缘的映射精度。因此，这些数据非常适合用于支持火灾管理（例如，近实时警报系统）以及其他需要提高火灾映射精度的科学应用。375米产品与基准Suomi NPP/VIIRS 750米主动火灾检测与特征化数据相辅相成，后者最初旨在为现有的1公里地球观测系统中分辨率成像光谱辐射计（EOS/MODIS）主动火灾数据记录提供连续性。鉴于数据饱和问题频发，当前375米火灾产品仅提供检测信息，而不包含亚像素火灾特征化信息。
VNP14IMGTDL_NRT数据可通过NASA FIRMS以以下格式获取：TXT、SHP、KML、WMS。这些数据亦可通过LANCE FIRMS火灾电子邮件警报提供。请注意，仅TXT和SHP文件包含所有属性。