SST Atlas of Australian Regional Seas (SSTAARS) - Daily climatology fit

25 years of Advanced Very High-Resolution Radiometer (AVHRR) data from NOAA Polar Orbiting Environmental Satellites received by six Australian and two Antarctic reception stations have been used to construct a detailed climatology of sea surface temperature (SST) at 20 cm depth around Australasia. The resulting atlas, known as the SST Atlas of Australian Regional Seas (SSTAARS), has a spatial resolution of ~2km and thus reveals unprecedented detail of regional oceanographic phenomena, including tidally-driven entrainment cooling over shelves and reef flats, wind-driven upwelling, shelf winter water fronts, cold river plumes, the footprint of the seasonal boundary current flows and standing mesoscale features in the major offshore currents. The atlas (and associated statistics) will provide a benchmark for high-resolution ocean modelers and be a resource for ecosystem studies where temperatures, and their extremes, impact on ocean chemistry, species ranges and distribution. The SST data used to construct the atlas were one-day composites of night-only AVHRR SST (L3S-1day night) for the period 21 March 1992 to 31 December 2016 provided through the Integrated Marine Observing System (IMOS: http://www.imos.org.au).

本研究利用澳大利亚6个接收站与南极2个接收站获取的美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）极轨环境卫星搭载的甚高分辨率辐射计（Advanced Very High-Resolution Radiometer, AVHRR）长达25年的观测数据，构建了澳大拉西亚周边20厘米深度海表温度（Sea Surface Temperature, SST）的精细化气候态图集。据此生成的图集被命名为《澳大利亚区域海海表温度图集》（SST Atlas of Australian Regional Seas, SSTAARS），其空间分辨率约为2千米，得以展现区域海洋学现象的前所未有的精细细节，包括陆架与礁坪上潮汐驱动的卷携冷却、风驱上升流、陆架冬季水团锋面、冷河羽流、季节性边界流场的影响范围，以及主要外海流系中的稳态中尺度特征。该图集（及配套统计数据集）将为高分辨率海洋数值模拟研究者提供基准参考，同时可为生态系统研究提供关键数据支撑——海表温度及其极端值会对海洋化学、物种分布范围与种群分布产生显著影响。本图集所用的海表温度数据为1992年3月21日至2016年12月31日期间的仅夜间AVHRR海表温度日合成产品（L3S-1day night），由集成海洋观测系统（Integrated Marine Observing System, IMOS，http://www.imos.org.au）提供。