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首页> 外文期刊>Geophysical Research Letters >A comparison between the World Ocean Atlas and Hydrobase Climatology
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A comparison between the World Ocean Atlas and Hydrobase Climatology

机译：世界海洋地图集和水文气候学之间的比较

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The gridded 1/4 degrees World Ocean Atlas (WOA, Boyer and Levitus, 1998) is compared with the 1 degrees WOA (Levitus et al., 1994) over the North Atlantic Ocean. The temperature and salinity fields from both the 1/4 degrees and 1 degrees WOA are projected on two isopycnal surfaces and compared with the Hydrobase climatology (Lozier et al., 1995). Geostrophic current maps diagnosed from hydrographic temperature and salinity are also presented. Results show that the 1/4 degrees WOA, with a smaller smoothing radius, greatly improves the 1 degrees WOA in several important aspects. In particular, sharp frontal features associated with the western boundary current which are absent in the 1 degrees WOA are apparent in the 1/4 degrees WOA. The 1/4 degrees WOA describes similar small-scale mid-depth recirculation gyres reported by Lozier (1997) based on Hydrobase. However, "artifacts" in the property fields created by the isobaric averaging are still evident in the 1/4 degrees WOA. [References: 13]
机译：在北大西洋上，将网格化的1/4度世界海洋地图集（WOA，Boyer和Levitus，1998年）与1度WOA（Levitus等人，1994年）进行了比较。将1/4度和1度WOA的温度和盐度场投影到两个等深面上，并与水基气候学进行了比较（Lozier等，1995）。还提供了根据水文温度和盐度诊断出的地转流图。结果表明，具有较小平滑半径的1/4度WOA在几个重要方面大大改善了1度WOA。特别是，在1度WOA中不存在与西方边界流相关的锋利的正面特征。 1/4度WOA描述了Lozier（1997）基于Hydrobase报道的类似的小规模中深度再循环涡流。但是，通过等压平均创建的属性字段中的“伪像”在1/4度WOA中仍然很明显。 [参考：13]

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