Across the Newfoundland and Labrador (NL) continental shelf, sub-surface temperatures remain below 0°C throughout the summer, when the surface is much warmer. This oceanographic feature is known as a cold intermediate layer (CIL), and its properties are assessed annually in the region to support ocean climate research and fisheries management. Monitoring in this region is either too infrequent or too sparse spatially to provide a detailed picture of sub-annual variations, so the GLORYS12 global ocean reanalysis is used for this purpose. GLORYS12 is shown to reproduce both the signs and magnitudes of inter-annual variations in CIL area on NL Shelf transects, although the magnitude of the seasonal cycle may be under-estimated.

中文翻译：

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纽芬兰和拉布拉多大陆架寒冷中间层的季节性变化


在整个纽芬兰和拉布拉多 （NL） 大陆架上，整个夏季地表下温度保持在 0°C 以下，此时地表要暖和得多。这种海洋学特征被称为冷中间层 （CIL），该地区每年都会评估其特性，以支持海洋气候研究和渔业管理。该地区的监测要么太少，要么在空间上太稀疏，无法提供次年变化的详细情况，因此GLORYS12全球海洋再分析用于此目的。GLORYS12 被证明可以再现 NL 大陆架样带上 CIL 区域年际变化的迹象和幅度，尽管季节周期的大小可能被低估了。