Objective analysis of monthly temperature and salinity around the southwestern East Sea (Japan Sea) on a 0.1° grid

被引:12
作者
Chang, You-Soon [1 ,2 ]
Shin, Hong-Ryeol [3 ]
机构
[1] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ 08540 USA
[2] Univ Corp Atmospher Res, Boulder, CO 80307 USA
[3] Kongju Natl Univ, Dept Atmospher Sci, Kong Ju 314701, Chungnam, South Korea
关键词
Objective analysis; Southwestern East Sea; Optimal interpolation; Potential vorticity constraint; Optimal length scale; High resolution climatology; CIRCULATION; OCEAN;
D O I
10.1016/j.csr.2012.06.001
中图分类号
P7 [海洋学];
学科分类号
0707 ;
摘要
Objective analyzed climatological mean fields of temperature and salinity are calculated on a 0.1 degrees grid at standard levels in the southwestern East Sea (Japan Sea). This new climatology is based on individual profiles from the World Ocean Database 2009 and serial oceanographic observed data provided by Korea Ocean Data Center. We use an optimal interpolation method and employ a two step mapping technique to resolve both small- and large-scale climatological features. Potential vorticity constraint term is also included to consider the tendency of ocean currents following the bathymetry. From the scale sensitivity experiment using an independent observed data, we define optimal length scales for the new high resolution climatology in the southwestern East Sea (Japan Sea). The new climatology shows a significant improvement in many ways compared to existing 1 degrees and 0.25 degrees grid climatologies; World Ocean Atlas 2001, 2005, 2009 and Generalized Digital Environmental Model version 3. (c) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码:54 / 64
页数:11
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