Inversion of Initial Field Based on a Temperature Transport Adjoint

doi:10.3390/jmse9070760

IOCAS-IR > 海洋环流与波动重点实验室

	Inversion of Initial Field Based on a Temperature Transport Adjoint
	Jiao, Shengyi 1,2; Huang, Shengmao 1,2; Wang, Jianfeng 2,3,4; Lv, Xianqing 1,2
	2021-07-01
发表期刊	JOURNAL OF MARINE SCIENCE AND ENGINEERING
卷号	9 期号:7 页码:14
通讯作者	Wang, Jianfeng(jfwang2013@qdio.ac.cn) ; Lv, Xianqing(xqinglv@ouc.edu.cn)
摘要	The setting of initial values is one of the key problems in ocean numerical prediction, with the accuracy of sea water temperature (SWT) simulation and prediction greatly affected by the initial field quality. In this paper, we describe the development of an adjoint assimilation model of temperature transport used to invert the initial temperature field by assimilating the observed data of sea surface temperature (SST) and vertical temperature. Two ideal experiments were conducted to verify the feasibility and validity of this method. By assimilating the "observed data", the mean absolute error (MAE) between the simulated temperature data and the "observed data" decreased from 1.74 degrees C and 1.87 degrees C to 0.13 degrees C and 0.14 degrees C, respectively. The spatial distribution of SST difference and the comparison of vertical data also indicate that the regional error of vertical data assimilation is smaller. In the practical experiment, the monthly average temperature field provided by World Ocean Atlas 2018 was selected as background filed and optimized by assimilating the SST data and Argo vertical temperature observation data, to invert the temperature field at 0 a.m. on 1 December 2014 in the South China Sea. Through data assimilation, MAE was reduced from 1.29 degrees C to 0.65 degrees C. In terms of vertical observations data comparison and SST spatial distribution, the temperature field obtained by inversion is in good agreement with SST and Argo observations.
关键词	initial field sea water temperature The South China Sea adjoint assimilation sea surface temperature vertical temperature observation
DOI	10.3390/jmse9070760
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42076011] ; National Natural Science Foundation of China[U1806214] ; National Natural Science Foundation of China[41706012] ; National key research and development program[2019YFC1408405] ; Innovation and Strengthen Project of Guangdong Province[2018KQNCX082]
WOS研究方向	Engineering ; Oceanography
WOS类目	Engineering, Marine ; Engineering, Ocean ; Oceanography
WOS记录号	WOS:000676209300001
出版者	MDPI
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/175755
专题	海洋环流与波动重点实验室
通讯作者	Wang, Jianfeng; Lv, Xianqing
作者单位	1.Ocean Univ China, Key Lab Phys Oceanog, Minist Educ, Qingdao 266100, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China
通讯作者单位	中国科学院海洋大科学研究中心; 中国科学院海洋研究所
推荐引用方式 GB/T 7714	Jiao, Shengyi,Huang, Shengmao,Wang, Jianfeng,et al. Inversion of Initial Field Based on a Temperature Transport Adjoint[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2021,9(7):14.
APA	Jiao, Shengyi,Huang, Shengmao,Wang, Jianfeng,&Lv, Xianqing.(2021).Inversion of Initial Field Based on a Temperature Transport Adjoint.JOURNAL OF MARINE SCIENCE AND ENGINEERING,9(7),14.
MLA	Jiao, Shengyi,et al."Inversion of Initial Field Based on a Temperature Transport Adjoint".JOURNAL OF MARINE SCIENCE AND ENGINEERING 9.7(2021):14.

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