| 一个压力坐标海洋环流模式(PCOM1.0)的基本模拟性能评估 |
| |
| 引用本文： | 欧念森,林一骅,毕训强,张宇.一个压力坐标海洋环流模式(PCOM1.0)的基本模拟性能评估[J].气候与环境研究,2016,21(1):56-64. |
| |
| 作者姓名： | 欧念森 林一骅 毕训强 张宇 |
| |
| 作者单位： | 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室, 北京 100029;中国科学院大学, 北京 100049,中国农业科学院农业环境与可持续发展研究所, 北京 100081;中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室, 北京 100029,中国科学院大气物理研究所气候变化研究中心, 北京 100029,国家海洋环境预报中心, 北京 100081 |
| |
| 基金项目： | 国家自然科学基金项目41175058、41575059 |
| |
| 摘 要： | 参照Griffies et al.(2009)提出的海洋—海冰耦合模式参考试验(Coordinated Ocean-ice Reference Experiments,COREs),设计了一个800年积分的数值试验,对一个质量严格守恒的压力坐标海洋环流模式(Pressure Coordinate Ocean Model,PCOM1.0)的基本模拟性能进行了评估,并与观测资料和再分析资料进行了对比。结果表明,PCOM1.0模拟的温盐场和基本流场与COREs模式的模拟水平基本接近。其中,模拟的大西洋经向翻转流在45°N附近达到18 Sv(1 Sv=106 m3 s-1),与观测估计值接近;对海表面温度的模拟误差主要集中在北太平洋黑潮区和北大西洋湾流区等中高纬度急流区;模拟的热带太平洋温跃层过于深厚;模拟的经德雷克海峡的体积输送达130 Sv,比大部分COREs模式及再分析资料都更接近于观测估计值。
|
| 关 键 词： | 质量守恒 压力坐标 海洋环流模式 COREs (Coordinated Ocean-ice Reference Experiments) |
| 收稿时间： | 4/2/2015 12:00:00 AM |
Baseline Evaluation of a Pressure Coordinate Ocean Model (PCOM 1.0) |
| |
| OU Niansen,LIN Yihu,BI Xunqiang and ZHANG Yu.Baseline Evaluation of a Pressure Coordinate Ocean Model (PCOM 1.0)[J].Climatic and Environmental Research,2016,21(1):56-64. |
| |
| Authors: | OU Niansen LIN Yihu BI Xunqiang and ZHANG Yu |
| |
| Institution: | State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;University of Chinese Academy of Sciences, Beijing 100049,Institute of Environment and Sustainable Development for Agriculture, Chinese Academy of Agriculture Sciences, Beijing 100081;State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 and National Marine Environmental Forecasting Center, Beijing 100081 |
| |
| Abstract: | An 800-year integration has been carried out to evaluate the baseline performance of a mass conserved, Pressure Coordinate Ocean Model (PCOM1.0) against observational and reanalyzed data, using the main metrics of the Coordinated Ocean-ice Reference Experiments (COREs). In general, the sea water temperature, salinity, and ocean circulations simulated by PCOM1.0 are comparable with those of the COREs models. The strength of simulated Atlantic meridional overturning circulation reaches 18 Sv (1 Sv=106 m3 s-1) near 45°N, close to the estimated values based on observations. The bias for the sea surface temperature mainly derives from the major frontal zones, such as the Kuroshio area in the North Pacific Ocean and the Gulf Stream in the North Atlantic Ocean. In the tropical Pacific Ocean, PCOM1.0 systematically exhibits an overly deep thermocline compared with observations. In the Southern Ocean, the simulated volume transport through Drake Passage is about 130 Sv, closer to observations than results from most of the COREs models and the reanalyzed data. |
| |
| Keywords: | Mass conservation Pressure coordinate Oceanic general circulation model COREs |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《气候与环境研究》浏览原始摘要信息 |
| 点击此处可从《气候与环境研究》下载免费的PDF全文 |
|
