NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Sensor Data Record (SDR) from IDPS

The Visible Infrared Imaging Radiometer Suite (VIIRS) is a scanning radiometer on board Suomi NPP, NOAA-20, and NOAA-21 that collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. Level-1 Sensor Data Records (SDRs) from VIIRS include calibrated radiance, reflectance, and geolocation data and produced from the Raw Data Records. There are 22 VIIRS SDRs: 16 moderate-resolution, narrow-spectral-band products at 750 meter resolution, five imaging-resolution, narrow-spectral-band products at 375 meter resolution and one Day-Night Band imaging broadband product at 750 meter resolution. These SDRs are used as input to produce several Environmental Data Records (EDR) products. VIIRS SDR data obtained from the NOAA Comprehensive Large Array-Data Stewardship System (CLASS) are distributed as aggregated 5.6 minute files consisting of four granules in the Hierarchical Data Format v.5 (HDF5) with metadata attributes included.

可见光红外成像辐射仪套件（Visible Infrared Imaging Radiometer Suite, VIIRS）是搭载于苏奥米国家极轨伙伴卫星（Suomi NPP）、NOAA-20及NOAA-21的扫描式辐射仪，可采集陆地、大气、冰冻圈与海洋的可见光及红外成像数据与辐射测量数据。该仪器的一级传感器数据记录（Sensor Data Records, SDRs）包含经定标的辐射亮度、反射率数据与地理定位信息，由原始数据记录（Raw Data Records）处理生成。VIIRS的传感器数据记录共计22类：16种为750米分辨率的中等分辨率窄光谱波段产品，5种为375米分辨率的成像分辨率窄光谱波段产品，另有1种为750米分辨率的昼夜波段成像宽带产品。此类传感器数据记录可作为输入数据源，用于生成多款环境数据记录（Environmental Data Records, EDR）产品。从美国国家海洋和大气管理局综合大型阵列数据管理系统（NOAA Comprehensive Large Array-Data Stewardship System, CLASS）获取的VIIRS传感器数据记录，以聚合为5.6分钟的文件形式分发，此类文件包含4个数据粒（granule），采用分层数据格式第5版（HDF5）存储并附带元数据属性。