VIIRS/NPP Thermal Anomalies/Fire 6-Min L2 Swath 750m V001

The Visible Infrared Imaging Radiometer Suite (VIIRS) Thermal Anomalies (VNP14) Version 1 product is produced in 6-minute temporal satellite increments (swaths) at 750 meter resolution from the VIIRS sensor located on the NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi NPP) satellite. This product is designed after the Terra and Aqua Moderate Resolution Imaging Spectroradiometer (MODIS) Thermal Anomalies and Fire data products to promote the continuity of the Earth Observation System (EOS) mission. This data product can enable users to understand the location and intensity of fire events as well as identifying thermal anomalies.

The VNP14 product includes 31 science dataset layers to analyze key factors in fire detection, including atmospheric conditions (e.g. atmospheric reflectance, solar zenith angle, brightness temperature) and fuel type for the event. The fire mask layer in the VNP14 product is the primary layer and can be used to identify fires and other thermal anomalies such as volcanoes. In addition to the fire mask, brightness temperature is provided for VIIRS channels M5, M7, M11, M13, M15, and M16.

Each swath of data is approximately 3,060 kilometers along track (long) and 3,060 kilometers across track (wide). The VNP14 product is also used to generate higher-level fire data products.

Use of the (VNP03MODLL) (https://doi.org/10.5067/viirs/vnp03modll.001) data product is required to apply accurate geolocation information to the VNP14 Science Datasets (SDS).

本产品为可见光红外成像辐射计套装（Visible Infrared Imaging Radiometer Suite，简称VIIRS）热异常（Thermal Anomalies，产品代码VNP14）版本1，以每6分钟为时间增量（条带）从位于美国宇航局/国家海洋和大气管理局苏omi国家极地轨道合作伙伴（Suomi National Polar-orbiting Partnership，简称Suomi NPP）卫星上的VIIRS传感器生成，分辨率为750米。该产品参照地球观测系统（Earth Observation System，简称EOS）任务中的Terra和Aqua中分辨率成像光谱辐射计（Moderate Resolution Imaging Spectroradiometer，简称MODIS）热异常和火灾数据产品设计，旨在确保地球观测系统任务的连续性。该数据产品能够帮助用户理解火灾事件的地理位置和强度，以及识别热异常。VNP14产品包含31个科学数据集层，用于分析火灾检测中的关键因素，包括大气条件（例如大气反射率、太阳天顶角、亮度温度）以及事件燃料类型。VNP14产品中的火灾掩膜层是其主要层，可用于识别火灾以及其他热异常，如火山。除火灾掩膜外，还提供了VIIRS通道M5、M7、M11、M13、M15和M16的亮度温度。每个数据条带沿轨道方向（纵向）约为3,060公里，横跨轨道方向（横向）也约为3,060公里。VNP14产品还用于生成更高级别的火灾数据产品。使用（VNP03MODLL）数据产品（https://doi.org/10.5067/viirs/vnp03modll.001）是向VNP14科学数据集（Science Datasets，简称SDS）应用精确地理定位信息的必要条件。