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盐度是海洋的一个基本状态变量,在海洋环流中起着重要的作用。少量的盐通量扰动都会改变海洋的经向翻转环流和海表温盐场。因此,本文使用了海洋环流模式LICOM2.0研究了不同盐度边界条件对全球总盐量、海表盐度和大西洋经圈翻转环流模拟的影响。结果表明:洋面上的弱恢复项对合理地模拟海表盐度起着重要的作用,且对全球总盐量起着递增的作用;在虚盐通量中使用模拟的海表盐度而非定常的参考盐度能够更合理地模拟大西洋经圈翻转环流;除此之外,含有实盐通量的盐度边界条件能够更好地维持全球总盐量的守恒。
Salinity is a basic state variable of the ocean and plays an important role in ocean circulation. A small amount of salt flux perturbation will change the ocean’s meridional circulation and sea surface temperature and salinity fields. Therefore, this paper uses the LICOM2.0 ocean circulation model to study the effect of different salinity boundary conditions on the global salinity, sea surface salinity and over-the-Atlantic turbulent circulation circulation simulation. The results show that the weak recovery on the ocean surface plays an important role in the reasonable simulation of sea surface salinity, and plays an increasing role in the global total salinity. In simulated salt flux, the simulated sea surface salinity is used The unsteady reference salinity can more accurately simulate the Atlantic toroidal inversion circulation; in addition, salinity boundary conditions with real salt flux can better maintain the conservation of global salinity.