The flow of warm water into the Nordic Seas plays an important role for the mild climate of central and northern Europe. Here we estimate the stability of this flow thanks to the extensive hydrographic record that dates back to the early 1900s. Using all casts in two areas with little mean flow just south and north of the Greenland‐Scotland Ridge that bracket the two main inflow branches, we find a well‐defined approximately ±0.5 Sv volume transport (and a corresponding ±30 TW heat flux) variation in synchrony with the Atlantic multidecadal variability that peaked most recently around 2010 and is now trending down. No evidence is found for a long‐term trend in transport over the last 70 to 100 years.

中文翻译：

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关于过去70到100年间北欧海洋MOC的实力，水文学可以告诉我们什么？

流入北欧海的热水对中欧和北欧的温和气候起着重要作用。在这里，由于可追溯到1900年代初的广泛的水文记录，我们估计了水流的稳定性。使用格陵兰-苏格兰山脊以南和北部两个均流很少的区域中的所有铸件，它们将两个主要流入分支都包围起来，我们发现了定义明确的大约±0.5 Sv体积输运（以及相应的±30 TW热通量）与大西洋多年代际变率同步变化，后者在2010年左右达到最高峰，现在呈下降趋势。在过去的70到100年中，没有证据表明运输有长期趋势。