Monthly means of North Sea sea-surface temperature (blended SST)

Monthly mean (average of weekly analyses associated with respective month) of sea-surface temperature in the North Sea as spatial mean over grid-cells of the coarse resolution analysis grid based on a Lambert azimuthal equal-area projection with center point at 56°N, 4°E and a spatial resolution of 20 nautical miles (24x30 grid cells with corner grid-points at 60,81°N, -5,31°E; 60,81°N, 10,36°E; 51,17°N, -2,13°E; 51,17°N, 10,06°E); base data is the weekly SST-analysis performed in division M21 at BSH, that is a manual analysis based on in-situ observations for the period 1968-1994, that has been digitized, as well as the "blended SST-analysis", that is a product combining in-situ observations and satellite retrievals from 1995 onwards北海海表温度的月平均值（即对应月份的周分析结果的算术平均），为以56°N、4°E为中心点的兰伯特方位等面积投影（Lambert azimuthal equal-area projection）下的粗分辨率分析网格的网格单元空间平均值。该分析网格的空间分辨率为20海里，包含24×30个网格单元，其角点坐标分别为60.81°N、-5.31°E；60.81°N、10.36°E；51.17°N、-2.13°E；51.17°N、10.06°E。本数据集的基础数据包含两类：一是德国联邦海事与水文局（BSH）M21部门开展的周海表温度分析产品，即1968-1994年期间基于原位观测数据经数字化处理的人工分析结果；二是1995年起整合原位观测与卫星反演数据的融合海表温度分析（blended SST-analysis）产品。