IMOS - SRS - SST - L3C - NOAA 19 - 1 day - night time - Southern Ocean

This is a single sensor, multiple swath SSTskin product for a single night-time period, derived using observations from the AVHRR instrument on the NOAA-XX satellites. It is provided as a 0.02deg x 0.02deg cylindrical equidistant projected map over the Southern Ocean region 3°E to 158°W, 27°S to 78°S. Only night time passes are included in the product. Each grid cell contains the 1 night average of all the highest available quality SSTs that overlap with that cell, weighted by the area of overlap. The diagram at https://help.aodn.org.au/satellite-data-product-information/ indicates where this product fits within the GHRSST suite of NOAA/AVHRR productsMatchups with buoy SST observations (adjusted to skin depths) indicate typical 2014 biases of < 0.05 degC and standard deviations of 0.5 degC to 0.6 degC for NOAA-18 and NOAA-19. Refer to the IMOS SST products web page at http://imos.org.au/sstproducts.html and Beggs et al. (2013) at http://imos.org.au/sstdata_references.html for further information.

本数据集为单传感器多幅条带的海表皮肤温度（SSTskin，Sea Surface Skin Temperature）产品，覆盖单个夜间时段，基于NOAA-XX系列卫星搭载的先进甚高分辨率辐射计（AVHRR，Advanced Very-High-Resolution Radiometer）观测数据反演得到。数据集采用0.02°×0.02°分辨率的圆柱等距投影，覆盖南大洋区域（东经3°至西经158°，南纬27°至南纬78°）。本产品仅纳入卫星夜间过境的观测数据。每个网格单元存储所有与该单元存在空间重叠的最高质量可用海表温度数据的单夜间平均值，以重叠区域面积为权重。详见https://help.aodn.org.au/satellite-data-product-information/ 处的图示，可明确本产品在高分辨率海表温度工作组（GHRSST，Group for High Resolution Sea Surface Temperature）的NOAA/AVHRR产品套件中的定位。与经皮肤层深度校正的浮标海表温度观测数据的匹配验证结果显示，2014年NOAA-18与NOAA-19卫星的典型偏差小于0.05℃，标准偏差介于0.5℃至0.6℃之间。更多详细信息可参阅澳大利亚综合海洋观测系统（IMOS）海表温度产品网页http://imos.org.au/sstproducts.html，以及Beggs等人（2013）的相关研究，详情请见http://imos.org.au/sstdata_references.html。