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安达曼海南部内孤立波生成与传播的三维数值模拟

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海洋科学进展 2024年第3期42卷 452-465页

作者：张培超王刚戴德君乔方利黄传江自然资源部第一海洋研究所山东青岛266061 自然资源部海洋环境科学与数值模拟重点实验室山东青岛266061 山东省海洋环境科学与数值模拟重点实验室山东青岛266061

安达曼海内孤立波频发且振幅较大,对海洋生态、海上活动等有重要影响。本文采用非静力近似的MIT通用环流模式(MITgcm),并结合遥感影像研究了安达曼海南部内孤立波的生成与传播过程。数值模拟结果表明,格雷特海峡、尼科巴群岛之间的水道... 详细信息

安达曼海内孤立波频发且振幅较大,对海洋生态、海上活动等有重要影响。本文采用非静力近似的MIT通用环流模式(MITgcm),并结合遥感影像研究了安达曼海南部内孤立波的生成与传播过程。数值模拟结果表明,格雷特海峡、尼科巴群岛之间的水道、苏门答腊岛北部陆坡以及苏门答腊岛东北部陆坡是安达曼海南部内孤立波的4个主要生成源地,与遥感影像结果一致。本文还利用敏感性数值实验探究了二维模拟、潮流强度、地形结构等对该海域内孤立波生成与传播的影响。数值实验中,安达曼海内孤立波传播速度在2.3~2.6 m/s,振幅最大可达70 m,背景潮流越强,所生成的内孤立波列中内孤立波的数量越多、振幅越大,但相邻内孤立波之间的时间间隔变短。局地地形敏感性研究还发现双海脊能增强内孤立波的振幅和流速,并且对生成的内孤立波数量有较大影响。

关键词：安达曼海内孤立波非静力近似

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Observation and analysis of the influence of wind waves on air-sea momentum fluxes

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Science China Earth Sciences 2023年第7期66卷 1547-1555页

作者： Sheng CHEN Yuhuan XUE Baoshan YANG Yongqing YU fangli qiao First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China Key Laboratory of Marine Sciences and Numerical Modeling Ministry of Natural ResourcesQingdao 266061China Key Laboratory of Marine Sciences and Numerical Modeling Shandong ProvinceQingdao 266061China Shengli Oilfield Branch SinopecDongying 257000China

Due to the long-standing lack of understanding the role of wind waves on wind stress at moderate to high wind speeds,a high-frequency turbulence observation system is used in this study to obtain air-sea momentum flux data under pure wind wave conditions based on the tower-based marine meteorological observation platform in the southern Bohai ***,the modulation of wind waves on wind stress under wind speeds greater than 10 m s^(–1)is *** results indicated that the wind wave states caused by winds from the northwest and northeast are different under the influence of cold air,resulting in different wind stresses and drag *** wind stress increases with an increasing wind speed,reaching its maximum value when the northwest wind is nearly 20 m s^(–1),while the extreme value of the drag coefficient is basically the same when the northwest wind speed is the maximum and the northeast wind wave significant wave height is the *** drag coefficient increases with an increasing wind speed within the range of 10–15 m s^(–1),reaching saturation at 15 m s^(–1).The critical wind speed is smaller than other observed *** analysis showed that wind-induced turbulent stress deviates from the observed values,and the degree of deviation depends on the wind speed and wave state,with a greater deviation caused by strong winds and *** wave-induced stress can correct the negative deviation between wind-induced turbulent stress and the observed value,and the drag coefficient calculated based on the modified wind stress tends to be close to the observed value overall.

关键词： Tower-based platform in the Bohai Sea Moderate to high wind speed Pure wind waves Wind stress Wave-induced stress

Seasonal variations in wave-induced stress over global ocean based on China France Oceanography Satellite

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Science China Earth Sciences 2023年第12期66卷 2930-2940页

作者： Jing REN Sheng CHEN Xunqiang YIN Jianqiang LIU Ying XU fangli qiao College of Oceanic and Atmospheric Sciences Ocean University of ChinaQingdao 266100China First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China Key Laboratory of Marine Sciences and Numerical Modeling Ministry of Natural ResourcesQingdao 26661China Key Laboratory of Marine Sciences and Numerical Modeling Shandong ProvinceQingdao 266061China National Satellite Ocean Application Service Beijing 100081China

Due to the scarcity of simultaneous observations on global-scale wind and wave spectra,there has been limited research on the characteristics of global wave-induced stress and wind stress with wave effects using observed wave spectra,particularly their seasonal *** China France Oceanography Satellite(CFOSAT)for the first time can simultaneously observe global sea surface wind and wave spectra,providing a solid data basis for investigating this difficult *** this study,the seasonal characteristics of global sea surface wave-induced stress and wind stress were analyzed by combining one-year simultaneous wind and wave observations from CFOSAT with a wave boundary layer *** stress was divided into wind-wave-induced stress and swell-induced stress based on different wave *** results showed that the wave-induced stress presented a significant inverse correlation with swell index.A higher swell index corresponded to a larger proportion of swell-induced stress,resulting in a decrease in wind stress,and vice versa,wind-wave-induced stress was dominant,resulting in an increase in wind *** spring to winter in the Northern Hemisphere(NH),wind-wave-induced stress predominated in the westerly belt of the Southern Hemisphere(SH),while swell-induced stress predominated near the *** analysis revealed that the seasonal variation in wind-waveinduced stress in the SH was not significant,however,wind-wave-induced stress during the boreal summer was significantly lower than that in other *** absolute value of swell-induced stress in the SH showed a trend of decrease and then increase from spring to *** percentage of increase or decrease in wind stress after considering the waveinduced stress showed a roughly symmetrical pattern between the NH and SH during the spring and autumn seasons,while the summer and winter seasons showed an asymmetrical ***-induced stress significantly modulated wind stress,resulting i

关键词： China France Oceanography Satellite(CFOSAT) Wave-induced stress Wind stress Seasonal characteristics

Simulations and Projections of Winter Sea Ice in the Barents Sea by CMIP6 Climate Models

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Advances in Atmospheric Sciences 2023年第12期40卷 2318-2330页

作者： Rongrong PAN Qi SHU Zhenya SONG Shizhu WANG Yan HE fangli qiao First Institute of Oceanography and Key Laboratory of Marine Science and Numerical ModelingMinistry of Natural ResourcesQingdao 266061China Shandong Key Laboratory of Marine Science and Numerical Modeling Qingdao 266061China

Dramatic changes in the sea ice characteristics in the Barents Sea have potential consequences for the weather and climate systems of mid-latitude continents,Arctic ecosystems,and fisheries,as well as Arctic maritime *** and projections of winter sea ice in the Barents Sea based on the latest 41 climate models from the Coupled Model Intercomparison Project Phase 6(CMIP6)are investigated in this *** show that most CMIP6 models overestimate winter sea ice in the Barents Sea and underestimate its decreasing *** discrepancy is mainly attributed to the simulation bias towards an overly weak ocean heat transport through the Barents Sea Opening and the underestimation of its increasing *** methods of observation-based model selection and emergent constraint were used to project future winter sea ice changes in the Barents *** indicate that sea ice in the Barents Sea will continue to decline in a warming climate and that a winter ice-free Barents Sea will occur for the first time during 2042-2089 under the Shared Socioeconomic Pathway 585(SSP5-8.5).Even in the observation-based selected models,the sensitivity of winter sea ice in the Barents Sea to global warming is weaker than observed,indicating that a winter ice-free Barents Sea might occur earlier than projected by the CMIP6 simulations.

关键词： Arctic sea ice Barents Sea ocean heat transport sea ice projection CMIP6

FIO-ESM v2.0 CORE2-forced experiment for the CMIP6 Ocean Model Intercomparison Project

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Acta Oceanologica Sinica 2022年第10期41卷 22-31页

作者： Qi Shu Zhenya Song Ying Bao Xiaodan Yang Yajuan Song Xinfang Li Meng Wei fangli qiao First Institute of Oceanography and Key Laboratory of Marine Science and Numerical ModelingMinistry of Natural ResourcesQingdao266061China Laboratory for Regional Oceanography and Numerical Modeling Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao266237China Shandong Key Laboratory of Marine Science and Numerical Modeling Qingdao266061China

We introduced the Coupled Model Intercomparison Project Phase 6(CMIP6)Ocean Model Intercomparison Project CORE2-forced(OMIP-1)experiment by using the First Institute of Oceanography Earth System Model version 2.0(FIO-ESM v2.0),and comprehensively evaluated the simulation *** other OMIP models,FIO-ESM v2.0 includes a coupled ocean surface wave component model that takes into account non-breaking surface wave-induced vertical mixing in the ocean and effect of surface wave Stokes drift on air-sea momentum and heat fluxes in the climate system.A sub-layer sea surface temperature(SST)diurnal cycle parameterization was also employed to take into account effect of SST diurnal cycle on air-sea heat fluxes to improve simulations of air-sea *** show that mean values and long-term trends of significant wave height were adequately reproduced in the FIO-ESM v2.0 OMIP-1 simulations,and there is a reasonable fit between the SST diurnal cycle obtained from in situ observations and that parameterized by FIO-ESM *** of model drift,temperature,salinity,mixed layer depth,and the Atlantic Meridional Overturning Circulation show that the model performs well in the FIO-ESM v2.0 OMIP-1 ***,the summer sea ice extent of the Arctic and Antarctic is underestimated.

关键词： FIO-ESM OMIP CMIP6 OGCM

Attribution analysis for the failure of CMIP5 climate models to simulate the recent global warming hiatus

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Science China Earth Sciences 2017年第2期60卷 397-408页

作者： WEI Meng qiao fangli First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Laboratory for Regional Oceanography and Numerical Modeling Qingdao National Laboratory for Marine Science and Technology Qingdao 266237 China Key Laboratory of Marine Science and Numerical Modeling State Oceanic Administration Qingdao 266061 China

The Coupled Model Inter-comparison Project Phase 5 （CMIP5） contains a group of state-of-the-art climate models and represents the highest level of climate simulation thus far. However, these models significantly overestimated global mean surface temperature （GMST） during 2006-2014. Based on the ensemble empirical mode decomposition （EEMD） method, the long term change of the observed GMST time series of HadCRUT4 records during 1850-2014 was analyzed, then the simulated GMST by 33 CMIP5 climate models was assessed. The possible reason that climate models failed to project the recent global warming hiatus was revealed. Results show that during 1850-2014 the GMST on a centennial timescale rose with fluctuation, dominated by the secular trend and the multi-decadal variability （MDV）. The secular trend was relatively steady beginning in the early 20th century, with an average warming rate of 0.0883℃/decade over the last 50 years. While the MDV （with a -65-year cycle） showed 2.5 multi-decadal waves during 1850-2014, which deepened and steepened with time, the alarming warming over the last quarter of the 20th century was a result of the concurrence of the secular wanning trend and the warming phase of the MDV, both of which accounted one third of the temperature increase during 1975-1998. Recently the slowdown of global warming emerged as the MDV approached its third peak, leading to a reduction in the warming rate. A comparative analysis between the GMST time series derived from HadCRUT4 records and 33 CMIP5 model outputs reveals that the GMSTs during the historical simulation period of 1850-2005 can be reproduced well by models, especially on the accelerated global warming over the last quarter of 20th century. However, the projected GMSTs and their linear trends during 2006-2014 under the RCP4.5 scenario were significantly higher than observed. This is because the CMIP5 models confused the MDV with secular trend underlying the GMST time series, which results in a fast se

关键词： Global warming hiatus Secular trend MDV CMIP5 climate models EEMD

Sea level rise projection in the South China Sea from CMIP5 models

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Acta Oceanologica Sinica 2015年第3期34卷 31-41页

作者： HUANG Chuanjiang qiao fangli Key Laboratory of Marine Science and Numerical Modeling First Institute of Oceanography State Oceanic Administration

Future potential sea level change in the South China Sea （SCS） is estimated by using 24 CMIP5 models under different representative concentration pathway （RCP） scenarios. By the end of the 21st century （2081–2100 relative to 1986–2005）, the multimodel ensemble mean dynamic sea level （DSL） is projected to rise 0.9, 1.6, and 1.1 cm under RCP2.6, RCP4.5, and RCP8.5 scenarios, respectively, resulting in a total sea level rise （SLR） of 40.9, 48.6, and 64.1 cm in the SCS. It indicates that the SCS will experience a substantial SLR over the 21st century, and the rise is only marginal larger than the global mean SLR. During the same period, the steric sea level （SSL） rise is estimated to be 6.7, 10.0, and 15.3 cm under the three scenarios, respectively, which accounts only for 16%, 21% and 24% of the total SLR in this region. The changes of the SSL in the SCS are almost out of phase with those of the DSL for the three scenarios. The central deep basin has a slightly weak DSL rise, but a strong SSL rise during the 21st century, compared with the north and southwest shelves.

关键词： sea level rise South China Sea dynamic sea level steric sea level CMIP5 models

Effects of horizontal mixing on the upper ocean temperature in the equatorial Pacific Ocean

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Acta Oceanologica Sinica 2012年第1期31卷 16-23页

作者： HUANG Chuanjiang qiao fangli First Institute of Oceanography State Oceanic AdministrationQingdao 266061China

The influence of horizontal mixing on the thermal structure of the equatorial Pacific Ocean is examined based on a sigma coordinate model. In general, the distributions of the temperature and currents simulated by the sigma coordinate model are very close to the climatology. However, the simulated thermocline along the equator is slightly diffusive so that there is a cold bias above the main thermocline, while there is a warm bias under the main thermocline. Both horizontal diffusivity and viscosity have important effects on the upper thermal structure in the equatorial Pacific Ocean, while their detailed dynamics are different. Horizontal diffusivity affects the thermal structure in the upper ocean mainly through regulating the vertical diffusivity, while the horizontal viscosity does mainly through regulating directly the circulate system. A large horizontal diffusivity or a small horizontal viscosity can be in favor of simulating a more realistically thermal structure in the equatorial Pacific Ocean.

关键词： horizontal mixing thermal structure equatorial Pacific Ocean

Ocean temperature responses to Typhoon Mstsa in the East China Sea

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Acta Oceanologica Sinica 2008年第4期27卷 26-38页

作者： WANG Guansuo qiao fangli First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Key Laboratory of Marine Sciences and Numerical Modeling （MASNUM） of State Oceanic Administration First Institute of Oceanography State Oceanic Administration Qingdao 266061 China

The MASNUM wave-tide-circulation coupled model, with 21 layers in the vertical and （1/8） °horizontal resolution, was employed to investigate the oceanic responses to Typhoon Mstsa which traversed the East China Sea （ECS） during the period of 4 - 6 August, 2005. Numerical experiment results are analyzed and compared with observation. The responses of the sea surface temperature （SST）, in a focused area of （27° -29°N, 121° - 124°E）, include heating and cooling stages. The heating is mainly due to warm Kuroshio water transportation and downwelling due to the water accumulation. In the cooling stage, the amplitude of the simulated cold wake （ -3℃ ）, located on the right side of this typhoon track, is compared quite well with that of the satellite observed SST data. The wave-induced mixing（Bv） plays a key role for the SST cooling. Bv still plays a leading role, which accounts for 36%, for the ocean temperature drop in the upper ocean of 0 - 40 m, while the upwelling is responsible for 84% of the cooling for the lower layer of 40 - 70 m. The mixed layer depth （MLD） increased quickly from 28 to 50 m in the typhoon period. However, the simulated MLD without the wave-induced vertical mixing, evolution from 13 to 32 m, was seriously underestimated. The surface wave is too important to be ignored for the ocean responses to a typhoon.

关键词： typhoon wave-induce mixing ocean temperature response