GHRSST Level 3C North Atlantic Regional (NAR) subskin Sea Surface Temperature from SNPP/VIIRS (GDS V2) produced by OSI SAF for 2017-05-30 (NCEI Accession 0163837)

A regional Group for High Resolution Sea Surface Temperature (GHRSST) Level 3 Collated (L3C) dataset for the North Atlantic Region (NAR) based on retrievals from the Visible Infrared Imaging Radiometer Suite (VIIRS).

The European Organization for the Exploitation of Meteorological Satellites (EUMETSAT), Ocean and Sea Ice Satellite Application Facility (OSI SAF) is producing SST products in near real time from Metop/AVHRR and SNPP/VIIRS. Global AVHRR level 1b data are acquired at Meteo-France/Centre de Meteorologie Spatiale (CMS) through the EUMETSAT/EUMETCAST system. NAR SNPP/VIIRS level 0 data are acquired through direct readout and converted into l1b at CMS. SST is retrieved from the AVHRR and VIIRS infrared channels using a multispectral algorithm. This product is delivered as four six hourly collated files per day on a regular 2km grid. The product format is compliant with the GHRSST Data Specification (GDS) version 2.

本数据集为北大西洋区域（North Atlantic Region, NAR）的高分辨率海表温度工作组（Group for High Resolution Sea Surface Temperature, GHRSST）三级合并（Level 3 Collated, L3C）数据集，基于可见红外成像辐射计套件（Visible Infrared Imaging Radiometer Suite, VIIRS）的反演数据构建。

欧洲气象卫星开发组织（European Organization for the Exploitation of Meteorological Satellites, EUMETSAT）下属的海洋与海冰卫星应用设施（Ocean and Sea Ice Satellite Application Facility, OSI SAF），依托Metop/AVHRR与SNPP/VIIRS数据近实时生成海表温度（Sea Surface Temperature, SST）产品。

全球AVHRR 1b级数据通过EUMETSAT/EUMETCAST系统，在法国气象局/空间气象中心（Meteo-France/Centre de Meteorologie Spatiale, CMS）完成采集。

北大西洋区域的SNPP/VIIRS 0级数据通过直接读取方式采集，并在CMS处转换为1b级数据。

研究团队采用多光谱算法，从AVHRR与VIIRS的红外通道中反演得到海表温度。

该产品以常规2km网格为基准，每日生成4份每6小时合并一次的数据文件；产品格式符合GHRSST数据规范（GHRSST Data Specification, GDS）2.0版本要求。