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Warming in Arctic intermediate and deep waters around Chukchi Plateau and its adjacent regions in 1999

Science china Earth Sciences 2005年第8期48卷 1312-1320页

作者： ZHAO Jinping1, GAO Guoping2.& JIAO Yutian1 1. First Institute of Oceanography, state oceanic administration,{2.,{2. 2. Ocean University of{2., qingdao 2.6003,{2. First Institute of Oceanography State Oceanic Administration Qingdao China Ocean University of china Qingdao China

Based on the data measured during Arctic scientific expedition of china in 1999, the characteristics of temperature and salinity distributions around the Chukchi Plateau and its ad-jacent regions have been studied. It was found that the intermediate water with temperature higher than 0.5℃ existed in all parts of a 640 km section with a maximum temperature of 0.85℃ indicating a strong signal of the warming in Arctic Intermediate Water in 1999. Two important phenomena are described in this paper. First, the temperature of warm water was horizontally nonuniform. In the area of Chukchi Plateau, the temperature was higher, the layer of warm water was thicker and the depth of the warm water core was shallower than those in the area of con-tinental slope. The horizontal nonuniformity of the temperature distribution of warming water im-plies that the upward heat flux should also be nonuniform, thus exerting different effects on sea ice thickness, ice extent, and air-sea heat exchange. The mechanism to generate higher tem-perature in the plateau region was the bypassing of current around the plateau area caused by the special local topography, which restricted water exchange across the plateau and conserved heat in the water body. Second, the deep water down to 1400 m was also warming with a tem-perature increase of 0.2.. The warming in deep water reflects the occurrence of complicated heat redistribution processes in the intermediate water, which altered the thermal structure in the upper 1400 m. The warming data embody the obvious impact of global climate change on the Arctic Ocean and further studies are wanted.

关键词： Chukchi Plateau, Arctic Ocean, warming in intermediate water, warming in deep water.

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The phytoliths in Core C_1 from the Okinawa Trough

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Chinese Science Bulletin 1997年第16期42卷 1377-1382页

作者： WANG YongjiFirst Institute of Oceanography, state oceanic administration, qingdao {2.6003,{{2. First Institute of Oceanography State Oceanic Administration Qingdao China

THE application of phytolith study in geology in the world has experienced a history of over 30 years. The earliest application of phytolith study to marine geology was made by Smithson when he made a study on the submarine sediments in Leigwy Bay. Later, he made the analysis of phytoliths in the neritic sediments in Ariake Bay in Kyushu, Japan. Dumitrica analysed the phytoliths in the cores drilled in the Mediterranean Sea. Phytoliths in the deepsea

关键词： Okinawa Trough phytolith palaeoclimate.

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Influence of Kuroshio water on the distribution of dissolved oxygen in the northern East china Sea

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Acta Oceanologica Sinica 1992年第2期11卷 305-316页

作者： Fu YongfaNorth Sea Branch of state oceanic administration, qingdao,{{2.

On the basis of the four-cruise investigation data of the Kuroshio by the R/V "Xiangyanghong 09", this paper lays stress on the discussion of the relationship between the Kuroshio current systems, the distribution of ... 详细信息

关键词： dissolved seasonal discussion cruise winter isotherm salinity diluted mixing suspended

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The influence of the surface heat fluxes of the Kuroshio key-area on meiyu rainfall in the Changjiang River region

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Acta Oceanologica Sinica 1991年第1期10卷 73-82页

作者： Ding Liangmo First Institute of Oceanography,state oceanic {{2.,qingdao,china First Institute of Oceanography State Oceanic Administration Qingdao China China

On the basis, of the surface heat fluxes of the Kuroshio key-area (2.°-30°N, 12.°-30°E)in March andApril, the climatologicai influence of the Kuroshio heat fluxes on meiyu rainfall in the Changjiang River (Yangtse River) region are studied. The results are concluded as follows;the surface heat fluxes of the Kuroshio key-area have certain influence on meiyu rainfall in the Changjiang River region during June and July. The correctness rates for the five stations in the Changjing River region (i. e. Wuhan, Jiujiang, Anqing,Nanjing and Shanghai)are in the range of 9/2.-13/2.. The surface heat fluxes influence mainly on the homogeneous rainfall pattern,the correctness rates come to 7/10-8/10 for the lower valley of the Changjiang River. The estimation expression of the meiyu rainfall for Shanghai consisting of the surface heat flux and the sea surface temperature anomaly of the Kuroshio key area agrees well with the actual meiyu rainfall condition.

关键词： heat The influence of the surface heat fluxes of the Kuroshio key-area on meiyu rainfall in the Changjiang River region area

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The coupling instability of Rossby and topographic Rossby waves in the equatorial area

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Science china Earth Sciences 2005年第10期48卷 1792-1801页

作者： CHAO Jiping1,2. LIU Lin1,3 & YU Weidong1 1. Laboratory of Marine Science and Numerical Modeling, state oceanic administration,{2.,{2. 2. National Research Center for Marine Environmental Forecasts, state oceanic administration, Beijing 100081,{2. 3. Ocean University of{2., qingdao 2.6003,{2. state oceanic {{2. Ocean University of china

In case of considering the fact that the tropical ocean thermocline or the lower at-mosphere height field has the meridional variation, the topographic Rossby wave will be excited. Also the background geostrophic current emerges. Under such conditions, the topographic Rossby wave can interact with the classical Rossby wave at some parameter band and thus brings a new kind of instability, which may be of potential application in understanding some phenomena of the ENSO cycle.

关键词： thermocline variation, equatorial jet, Rossby wave, topographic Rossby wave, coupling instability

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Distribution of molluscan remains in the sediment of the Chukchi Sea and its vicinity, the Arctic

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Acta Oceanologica Sinica 2003年第4期22卷 607-619页

作者： Gao Aiguo 1,2. Xu Fengshan3, Sun Haiqing 1,2. Li Lon1 1. First Institute of Oceanography,{2., qingdao 2.6061,{2.. 2. Key Laboratory of Marine Sedimentology and Environmental Geology,{2., qingdao 2.6061,{2. 3. Institute of Oceanology, Chinese Academy of Sciences, qingdao 2.6071,{2. First Institute of Oceanography State Oceanic Administration Qingdao 266061 China Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Key Lab. Mar. Sedimentol./Environ. State Oceanic Administration Qingdao 266061 China

The result of an analysis of mollusca remains collected from the Chukchi Sea, Beaufort Sea and Bering Sea in the First Chinese National Arctic Research Expedition, from July to September, 1999 is presented. Seventeen species of mollusca have been identified, which belong to two classes: Bivalvia and Gastropoda. The compositions of the mollusca are very simple. According to the distribution pattern two groups may be distinguished among molluscan species. The Pan-Arctic and circumboreal group comprises Nuculana pernula, ***, Nucula bellotii, Astarte montagui, Seripes groenlandicus, Macoma calcarea, M. moesta alaskana, Liocyrna fluctuosa, Mya pseudoarenaria and Turritella polaris. Three species, Cyclocardia crebricostata, Trichotrois coronata and Argobuccinum oregonense are components of the Pan-Arctic and Pacific boreal group. With regard to feeding habits, detritus feeders dominate. There are 7 species of detritus feeders, i.e., Nuculana pernula, N. radiata, Nucula bellotii, Macoma calcarea, M. moesta alaskana, Macoma sp. and Trichotropis coronata. Detritus feeders are dominant with regard to the numbers of species as well as to the frequency of occurrence. Macoma calcarea is the most abundant species.

关键词： Chukchi Sea Beaufort Sea Bering Sea molluscan remains

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THE RE-DERIVATION OF THE VORTICITY EQUATION OF THE LAYERED FLOW OF THE SHALLOW SEA

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Journal of Hydrodynamics 2001年第3期13卷 10-16页

作者： Zhang Qing-hua, Li Jian ke, Qu Yuan yuan First Institute of Oceanography, state oceanic administration, qingdao 2.6061,{{2. Key Laboratory of Marine Science and Numerical Modeling, state oceanic administration, qingdao 2.6061,{{2. First Inst. of Oceanography State Oceanic Administration Qingdao 266061 China

The scale analysis of the layered flow problem of the shallow sea shows that the parameter of E V represented the relative thickness of the friction layer is the little value larger than Rossby number. This illustrates that they are not ignorable and the important control factors of the layered flow although friction effect is only limited within interface Ekman layer and bottom Ekman layer. Using larger little parameter E V as the little perturbation parameter is more reasonable than using the classical Rossby number ε. By using the perturbation expansion and doing the researches of the structure of the Ekman layer on the sea surface, sea bottom and interface, a group of new layered flow vorticity equation is derived. It combines the vorticity of the flow of every layer, the inclination of the interface, the inclination of the sea bottom and the wind stress vorticity on the sea surface. Different from the conventional vorticity equation, which derived by using Rossby number as little parameter and is applied to large scale motion, it allows relatively large interfaces fluctuation, even it is applied to the problem that interface touch the bottom or touch the sea surface.

关键词： interface Ekman layer interface fluctuation touch the bottom touch the sea surface

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Chemical characteristics of clay minerals in the sediments from the Yellow River and the Changjiang River

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Chinese Science Bulletin 1997年第6期42卷 488-492页

作者： HE Liangbiao and LIU Qingyu1.First Institute of Oceanography, state oceanic administration, qingdao {2.6003,{{2. {2. Institute of Physical Oceanography Ocean University of qingdao, Qingdac {2.6003,{{2. First Institute of Oceanography State Oceanic Administration Qingdao China Institute of Physical Oceanography Ocean University of Qingdao Qingdao China

THE characteristics of clay minerals are controlled by the characters of weathered mother rock and the weathering environments in source area. The characteristics of clay minerals of the Yellow River should be different from those of the Changjiang River because the characters of mother rock and the weathering environments in the drainage area of the Yellow River are quite different from those in the drainage area of the Changjiang River, so it is important to find a difference between the characteristics of clay minerals of the Yellow River and

关键词： the Yellow River the Changjiang River clay minerals chemical characteristics.

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Scaling of motion and governing equations for baroclinic large-scale motions in equatorial ocean

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Acta Oceanologica Sinica 2000年第1期19卷 15-24页

作者： Fan Zhisong and Pu Shuzhen (1. Marine Environment College, Ocean University of qingdao, qingdao {2.6003,{{2. {2. First institute of Oceanography, state oceanic administration, qingdao {2.6003,{{2.) Marine Environment College Ocean University of Qingdao Qingdao 266003 China First Institute of Oceanography State Oceanic Administration Qingdao 266003 China

An obvious characteristic of the baroclinic large-scale motions in the equatorial ocean is that the meridional scale H of motion is far smaller than the zonal scale L. The scaling of motion carefully with this striking characteristic in this paper results in two conclusions, i. e., the Coriolis terms associated with the horizontal component of the rotation vector cannot be neglected in the governing equations; and the use of the absence of heating is not suitable to the equatorial region. In this paper the equatorial β-plane nondimensional governing equations with the small parametersδ_0 andδ_1 have been Obtained.

关键词： Baroclinic large-scale motions in equatorial ocean horizontal component of rotation vector equatorial B-plane

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A model for wave growth in fetch-limited conditions

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Acta Oceanologica Sinica 1997年第1期16卷 45-56页

作者： Li Luping First Institute of Oceanography, state oceanic administration, qingdao {2.6003,{{2. First Institute of Oceanography State Oceanic Administration Qingdao 266003 China

In this paper, it is held that the universal relationships of wave growth in fetch-limited conditions , i. e., (f|~) p=A(x|~)-Band (m|~)0= C(x|~) Dshould satisfy the Toba 3/2.power law and the wave energy balance equation. In the ideal generation situation, theoretically it can be derived that the ideal fetch-limited wave growth relationship should have D=3B and D+B =1, (i.e., B = 0.2., D = 0.75 ) and A3C=2. 1×l(T4C^(1/2._d , where Cd is the drag coefficient. The 3/2.power law, the wave energy balance equation and the decrease of wave steepness with increasing fetch have became three requirements which should be satisfied by fetch-limited wave growth algorithms. A semi-empirical and semi-theoretical model for fetch-limited wave growth is presented. In the application to the slanting wind situation an un(?)ersal relationship of dimensionless wave energy vs dimensionless peak frequency is presented and the comparisons show that the model is in good agreement with observations.

关键词： Wave growth fetch-limited wave field universal relationship

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