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Tracing the sources of nutrients through the Tsushima/Korea Strait
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作者 Jing Zhang Xinyu Guo +2 位作者 Lei Zhu Jianlong Feng Liang Zhao 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2024年第6期142-152,共11页
The nutrients from the East China Sea(ECS) through the Tsushima/Korea Strait(TS) strongly impact the eco system of the Japan Sea(JS).The complex origins of the Tsushima Warm Current and the various nutrient sources in... The nutrients from the East China Sea(ECS) through the Tsushima/Korea Strait(TS) strongly impact the eco system of the Japan Sea(JS).The complex origins of the Tsushima Warm Current and the various nutrient sources in the ECS result in complex spatial-temporal variations in nutrients in the TS.Using a physical-biological model with a tracking technique,we studied the effects of nutrient sources from the ECS on the TS.Among all the nutrient sources,the Kuroshio has the highest nutrient concentrations in the TS.Its maximum concentration occurs at the bottom,while those of rivers and atmospheric depo sition occur at the surface,and that of the Taiwan Strait occurs in the middle layer.The nutrient transport through the TS exhibits similar seasonal variations,as does the volume transport.The transport of nutrients from the Kuroshio accounts for more than 85% of the total.The transport of nutrients from the Taiwan Strait is greater during autumn and winter.The transport of dissolved inorganic nitrogen(DIN) from both rivers and atmospheric deposition through the TS peak in August.Nutrient transport cannot be equated with volume transport.The DIN in the less saline zone originates not only from rivers but also from atmospheric deposition and the Kuroshio.The transport of nutrients from the Taiwan Strait is not as significant as its volume transport in the TS. 展开更多
关键词 dissolved inorganic nitrogen dissolved inorganic phosphate East China sea japan sea nutrient transport
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The accumulation characteristics and exploration potential of oil and gas in the back-arc basin of Japan under the background of high heat flow
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作者 Jian-qiang Wang Jie Liang +10 位作者 Jian-wen Chen Qing-fang Zhao Yin-guo Zhang Jian-wei Zhang Sen Li Chang-qing Yang Jian Zhang Jing Sun Chuan-sheng Yang Yong Yuan Lee-Jel Jiang 《China Geology》 CAS CSCD 2023年第4期660-675,共16页
The Sea of Japan is located in the southeast margin of Eurasia, in the triangle area of the western Pacific Ocean. Due to the interaction of the Pacific plate, Eurasian plate and Philippine plate, its tectonic environ... The Sea of Japan is located in the southeast margin of Eurasia, in the triangle area of the western Pacific Ocean. Due to the interaction of the Pacific plate, Eurasian plate and Philippine plate, its tectonic environment is complex, forming a typical trench-arc-basin system. At present, 148 oil and gas fields have been discovered in Japan, with an oil and gas resource of 255.78×10^(6) t, showing a good prospect for oil and gas exploration. Based on the previous research and the recently collected geological and geophysical data, the characteristics of tectonic-sedimentary evolution and geothermal field in the basins around the Sea of Japan are analyzed. The results show that the tectonic evolution of the basin is mainly controlled by plate subduction and back-arc oceanic crust expansion, and it mainly undergone four tectonic-sedimentary evolution stages: Subduction period, basin development period, subsidence period and compression deformation period. The overall heat flow value of Japan Sea is high, and it is distributed annularly along Yamato Ridge. The geothermal heat flow value is about 50–130 MW/m^(2), and the average heat flow is75.9±19.8 MW/m^(2), which has a typical “hot basin ”. The high heat flow background provides unique thermal evolution conditions for hydrocarbon generation, which leads to the high temperature and rapid evolution. The authors summarized as “early hydrocarbon generation, rapid maturity and shallow and narrow hydrocarbon generation window”. The type of oil and gas is mainly natural gas, and it mainly distributed in Neogene oil and gas reservoirs. The trap types are mainly structural traps, lithologic traps and composite traps. In addition, the pre-Neogene bedrock oil and gas reservoirs also show a good exploration prospect. The resource prospecting indicates that Niigata Basin, Ulleung Basin and kitakami Basin are the main target areas for future exploration and development. 展开更多
关键词 Oil and gas Hydrocarbon generation capacity Back-arc basin Geothermal field Tectono-sedimentary evolution Hydrocarbon accumulation the sea of japan Western Pacific
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Present Situation and Thinking of the Evaluation and Management of Biomedical Projects in Shenzhen Industrial Park of Shenzhen-Hong Kong Cooperation Zone
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作者 Zhao Xuanhe Wang Shuling 《Asian Journal of Social Pharmacy》 2023年第2期116-127,共12页
Objective To put forward some suggestions for the improvement of the evaluation system of Shenzhen Industrial Park of Shenzhen-Hong Kong Innovation Cooperation Zone by studying the scientific research project evaluati... Objective To put forward some suggestions for the improvement of the evaluation system of Shenzhen Industrial Park of Shenzhen-Hong Kong Innovation Cooperation Zone by studying the scientific research project evaluation and management system of Japan Agency for Medical Research and Development(AMED).Methods Through literature review,lessons were drawn from the review and management policies and methods of biomedical projects implemented by Japan AMED.Then some reference was provided to the review and management of the projects in Shenzhen Industrial Park.Results and Conclusion A basic review framework has been set up in Shenzhen Industrial Park,which consists of scientific research management institution of Shenzhen Industrial Park,Third-Party Review Institution and Science Committee.However,there are three problems in this system:unclear selection criteria of review experts,insufficient supervision and lack of project evaluation standards.These problems can be solved by establishing an expert think tank,setting up graded project supervisors to have the dynamic monitoring,and developing a general evaluation scale for evaluating scientific research projects in Shenzhen Industrial Park. 展开更多
关键词 Shenzhen-Hong Kong Science and Technology Innovation cooperation Zone japan Agency for Medical Research and Development BIOMEDICINE review research project
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Formation Mechanism for the Anomalous Anticyclonic Circulation over Northeast Asia and the Japan Sea in Boreal Winter 1997/98 and the Spring of 1998 被引量:4
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作者 WANG Hai LIU Qinyu ZHENG Jian 《Journal of Ocean University of China》 SCIE CAS 2013年第2期312-317,共6页
A robust anomalous anticyclonic circulation (AAC) was observed over Northeast Asia and the Japan Sea in boreal win-ter 1997/98 and over the Japan Sea in spring 1998. The formation mechanism is investigated. On the bac... A robust anomalous anticyclonic circulation (AAC) was observed over Northeast Asia and the Japan Sea in boreal win-ter 1997/98 and over the Japan Sea in spring 1998. The formation mechanism is investigated. On the background of the vertically sheared winter monsoonal flow, anomalous rainfall in the tropical Indo-Western Pacific warm pool excited a wave train towards East Asia in the upper troposphere during boreal winter of 1997/98. The AAC over Northeast Asia and the Japan Sea is part of the wave train of equivalent barotropic structure. The AAC over the Japan Sea persisted from winter to spring and even intensified in spring 1998. The diagnostic calculations show that the vorticity and temperature fluxes by synoptic eddies are an important mechanism for the AAC over the Japan Sea in spring 1998. 展开更多
关键词 anomalous anticyclonic circulation Northeast Asia japan sea wave train synoptic eddy
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GENERAL FEATURES OF POLAR LOWS OVER THE JAPAN SEA AND THE NORTHWESTERN PACIFIC 被引量:1
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作者 傅刚 刘秦玉 吴增茂 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 1999年第4期300-307,289,共9页
This study of the general features of occurrence frequencies, spatial distribution of locations, life time and cloud patterns of polar lows over the Japan Sea and the neighboring Northwestern Pacific in winter of 1995... This study of the general features of occurrence frequencies, spatial distribution of locations, life time and cloud patterns of polar lows over the Japan Sea and the neighboring Northwestern Pacific in winter of 1995/1996 based on observation and satellite data showed that polar lows develop most frequently in mid winter over the Japan Sea (35-45°N ) and the Northwestern Pacific (30-50°N). They rarely form over the Eurasian Continent. Polar lows over the Northwestern Pacific are usually long lived (2-3 days). But polar lows over the Japan Sea are relatively short lived (1-2 days), because the east west width of the Japan Sea is relatively narrow and polar lows tend to decay after their passing over the Japan Islands. Generally speaking, polar lows over the Japan Sea are characterized by tight, spiral (or comma) cloud patterns on satellite images. It was observed that polar lows over the Japan Sea have a typically spiral cloud band with clear “eye” at their mature stage. In winter, because of the effect of the warm Tsushima Current, the annual mean SST of the Japan Sea is 5-9℃ higher than that of the same latitude oceans. The large sea air temperature difference sustained over the Japan Sea provides favorable condition for polar low formation. The general features of polar lows over the Japan Sea are compared with those of other areas where polar lows often occur. 展开更多
关键词 POLAR lows the japan sea satellite data SPIRAL CLOUD BAND
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Effects of winds,tides and storm surges on ocean surface waves in the Sea of Japan 被引量:1
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作者 ZHAO Wei TIAN Jiwei +1 位作者 LI Peiliang HOU Yijun 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2007年第3期9-21,共13页
Ocean surface waves are strongly forced by high wind conditions associated with winter storms in the Sea of Japan. They are also modulated by tides and storm surges. The effects of the variability in surface wind forc... Ocean surface waves are strongly forced by high wind conditions associated with winter storms in the Sea of Japan. They are also modulated by tides and storm surges. The effects of the variability in surface wind forcing, tides and storm surges on the waves are investigated using a wave model, a high-resolution atmospheric mesoscale model and a hydrodynamic ocean circulation model. Five month-long wave model simulations are inducted to examine the sensitivity of ocean waves to various wind forcing fields, tides and storm surges during January 1997. Compared with observed mean wave parameters, results indicate that the high frequency variability in the surface wind filed has very great effect on wave simulation. Tides and storm surges have a significant impact on the waves in nearshores of the Tsushima-kaihyS, but not for other regions in the Sea of Japan. High spatial and temporal resolution and good quality surface wind products will be crucial for the prediction of surface waves in the JES and other marginal seas, especially near the coastal regions. 展开更多
关键词 ocean surface wave sea of japan winter storm TIDE storm surge
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High-Resolution Simulation and Analysis of the Mature Structure of a Polar Low over the Sea of Japan on 21 January 1997 被引量:1
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作者 傅刚 郭敬天 张美根 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2004年第4期597-608,共12页
This paper presents a high-resolution simulation of a remarkable polar low observed over the Sea of Japan on 21 January 1997 by using a 5-km mesh non-hydrostatic model MRI-NHM (Meteorological Research Institute Non-Hy... This paper presents a high-resolution simulation of a remarkable polar low observed over the Sea of Japan on 21 January 1997 by using a 5-km mesh non-hydrostatic model MRI-NHM (Meteorological Research Institute Non-Hydrostatic Model). A 24-hour simulation starting from 0000 UTC 21 January 1997 successfully reproduced the observed features of the polar low such as the wrapping of western part of an initial E-W orientation vortex, the spiral-shaped bands, the cloud-free 'eye', and the warm core structure at its mature stage. The 'eye' of the simulated polar low was relatively dry, and was associated with a strong downdraft. A thermodynamic budget analysis indicates that the 'warm core' in the 'eye' region was mainly caused by the adiabatic warming associated with the downdraft. The relationship among the condensational diabatic heating, the vertical velocity, the convergence of the moisture flux, and the circulation averaged within a 50 km×50 km square area around the polar low center shows that they form a positive feedback loop, and this loop is not inconsistent with the CISK (Conditional Instability of the Second Kind) mechanism during the developing stage of the polar low. 展开更多
关键词 polar low sea of japan high-resolution simulation warm core structure
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Mixed layer in the Sea of Japan:numerical simulation andlong-term data analysis 被引量:1
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作者 TRUSENKOVA Olga KHRAPCHENKOV Fyodor ISHIDA Hajime 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2005年第1期76-85,共10页
Seasonal variation and topography of the mixed layer in the Sea of Japan are studied by comparison of results from long-term observation data analysis and from numerical simulation with the MHI oceanic model (Shapiro.... Seasonal variation and topography of the mixed layer in the Sea of Japan are studied by comparison of results from long-term observation data analysis and from numerical simulation with the MHI oceanic model (Shapiro. 1998. Marine Hydrophysical Journal, 6: 26-40). The data are retrieved from Oceanographic A tlas of the Bering Sea, Okhotsk Sea, and Japan/East Sea (Rostov, Rostov, Dmitrieva, et al. 2003. Pacific Oceanography, 1(1):70-72). The simulated and long-term patterns are compared. An impact of surface buoyancy flux, wind, and convergence/divergence of surface currents upon the mixed layer in the Sea of Japan is analyzed. 展开更多
关键词 numerical modeling circuktion of the sea of japan mixed layer depth seasonal variation spatial patterns
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Impact of Autumn SST in the Japan Sea on Winter Rainfall and Air Temperature in Northeast China 被引量:1
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作者 SHI Xiaomeng SUN Jilin +2 位作者 WU Dexing YI Li WEI Dongni 《Journal of Ocean University of China》 SCIE CAS 2015年第4期604-611,共8页
We studied the impact of sea surface temperature anomaly(SSTA) in the Japan Sea and the sea area east of Japan on the winter rainfall and air temperature in Northeast(NE) China using the singular value decomposition(S... We studied the impact of sea surface temperature anomaly(SSTA) in the Japan Sea and the sea area east of Japan on the winter rainfall and air temperature in Northeast(NE) China using the singular value decomposition(SVD) and empirical orthogonal function(EOF). The monthly-mean rainfall data observed at 160 stations in China, monthly-mean sea surface temperature(SST) of the Hadley Center for Climate Prediction and Research and monthly-mean air temperature from the NCEP reanalysis during 1960–2011 were used. Correlation analysis indicates that the SSTAs in the Japan Sea in September may last for three or four months and are an important index for forecasting the winter rainfall and air temperature in NE China. Positive SSTAs in the central Japan Sea and in the sea area east of Tokyo correspond to positive rainfall anomaly and negative air temperature anomaly in NE China. With the rise of SST in the Japan Sea, a weak cyclone appears over the Japan Sea. The northeasterly wind transports water vapor from the Okhotsk to NE China, resulting in more rainfall and lower air temperature. Negative SSTA years are accompanied by warmer air temperature and less snow in NE China. The 1000 h Pa geopotential height anomaly and wind anomaly fields are simulated by IAP-9L model, which supports the analysis results. 展开更多
关键词 japan sea SSTA Northeast China RAINFALL air temperature
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The Interannual and Decadal Variability of the Sea Level in the Japan/East Sea 被引量:1
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作者 WANG Tianshun LIU Yuguang +1 位作者 ZONG Haibo RONG Zengrui 《Journal of Ocean University of China》 SCIE CAS 2009年第4期335-342,共8页
Sea level observed by altimeter during the 1993-2007 period and the thermosteric sea level from 1945 through 2005 obtained by using the global ocean temperature data sets recently published are used to investigate the... Sea level observed by altimeter during the 1993-2007 period and the thermosteric sea level from 1945 through 2005 obtained by using the global ocean temperature data sets recently published are used to investigate the interannual and decadal variability of the sea level in the Japan/East Sea (JES) and its response to E1 Nifio and Southern Oscillation (ENSO). Both the interannual variations of the sea level observed by altimeter and those of the thermosteric sea level obtained from reanalyzed data in the JES are closely related to ENSO. As a result, one important consequence is that the sea level trends are mainly caused by the thermal expansion in the JES. An 'enigma' is revealed that the correlation between the thermosterie sea level and ENSO during the PDO (Pacific Decadal Oscillation) warm phase (post mid-1970s) is inconsistent with that during the cold phase (pre mid-1970s) in the JES. The thermosteric sea level trends and the Southern Oscillation Index (SOI) suggest a strong negative correlation during the period 1977-1998, whereas there appears a relatively weak positive correlation during the period 1945-1976 in the JES. Based on the SODA (Simple Oceanographic Data Assimilation) datasets, possible mechanisms of the interannual and decadal variability of the sea level in the JES are discussed. Comprehensive analysis reveals that the negative anomalies of SOI correspond to the positive anomalies of the southeast wind stress, the net advective heat flux and the sea level in the JES during the PDO warm phase. During the PDO cold phase, the negative anomalies of SOI correspond to the positive anomalies of the southwest wind stress, the negative anomalies of the net advective heat flux and the sea level in the JES. 展开更多
关键词 interannual and decadal variability japan/East sea sea level anomalies thermosteric sea level anomalies ENSO
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Impact of the Pacific–Japan Teleconnection Pattern on July Sea Fog over the Northwestern Pacific: Interannual Variations and Global Warming Effect 被引量:3
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作者 Jingchao LONG Suping ZHANG +2 位作者 Yang CHEN Jingwu LIU Geng HAN 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2016年第4期511-521,共11页
The northwestern Pacific (NWP) is a fog-prone area, especially the ocean east of the Kuril Islands. The present study analyzes how the Pacific-Japan (PJ) teleconnection pattern influences July sea fog in the fog-p... The northwestern Pacific (NWP) is a fog-prone area, especially the ocean east of the Kuril Islands. The present study analyzes how the Pacific-Japan (PJ) teleconnection pattern influences July sea fog in the fog-prone area using independent datasets. The covariation between the PJ index and sea fog frequency (SFF) index in July indicates a close correlation, with a coefficient of 0.62 exceeding the 99% confidence level. Composite analysis based on the PJ index, a case study, and model analysis based on GFDL-ESM2M, show that in high PJ index years the convection over the east of the Philippines strengthens and then triggers a Rossby wave, which propagates northward to maintain an anticyclonic anomaly in the midlatitudes, indicating a northeastward shift of the NWP subtropical high. The anticyclonic anomaly facilitates the formation of relatively stable atmospheric stratification or even an inversion layer in the lower level of the troposphere, and strengthens the horizontal southerly moisture transportation from the tropical-subtropical oceans to the fog-prone area. On the other hand, a greater meridional SST gradient over the cold flank of the Kuroshio Extension, due to ocean downwelling, is produced by the anticyclonic wind stress anomaly. Both of these two aspects are favorable for the warm and humid air to cool, condense, and form fog droplets, when air masses cross the SST front. The opposite circumstances occur in low PJ index years, which are not conducive to the formation of sea fog. Finally, a multi-model ensemble mean projection reveals a prominent downward trend of the PJ index after the 2030s, implying a possible decline of the SFF in this period. 展开更多
关键词 Pacific-japan teleconnection sea fog frequency northwestern Pacific global warming
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Role of Gas Hydrate System Associated with Active Methane Seepage,Off Joetsu,Eastern Margin of the Japan Sea
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作者 Hitoshi Tomaru Ryo Matsumoto Team UT04 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期227-227,共1页
The Umitaka Spur and Joetsu Knoll region,eastern margin of the Japan Sea,has been investigated as the gas hydrate field associated with the occurrence of methane-related/induced activities.Massive to vein-like gas hyd... The Umitaka Spur and Joetsu Knoll region,eastern margin of the Japan Sea,has been investigated as the gas hydrate field associated with the occurrence of methane-related/induced activities.Massive to vein-like gas hydrates are found on/near the seafloor where huge methane plumes,reaching 600-650 m height, have been observed on the echo sounding images around the summits.Columnar chaotic gas-charged sediment structures are observed beneath the gas hydrate occurrences on the seismic images。 展开更多
关键词 gas HYDRATE japan sea Carbon and oxygen stable ISOTOPIC study
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THE FLUX OF LAND-BASED SOURCE POLLUTANTS FROM TUMEN RIVER SYSTEM ENTERING THE SEA OF JAPAN
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作者 殷兴军 尹澄清 《Chinese Geographical Science》 SCIE CSCD 1998年第3期48-54,共0页
The influence of land based source pollutants to marine ecological environment is principally in coastal or enclosed sea waters. Flux of land based source pollutants into the sea will be effected due to social and ... The influence of land based source pollutants to marine ecological environment is principally in coastal or enclosed sea waters. Flux of land based source pollutants into the sea will be effected due to social and economic development in the Tumen River basin. Pollutant type and primary pollution factor of the Tumen River in Northeast China is described by weighted coefficient method in this paper. The results indicate that the river is organic pollution type and primary pollution factor is COD. Fresh water fraction proves that the estuary is not affected by tide cycle. COD annual flux entering the Sea of Japan calculated by zero dimension model in 1993 was 90.50 ×10 3 tons. It is estimated with emission coefficient method that the COD will be 176.4 ×10 3 and 458.6 ×10 3 tons for the years of 2000 and 2010 respectively. 展开更多
关键词 Tumen RIVER COD the sea of japan POLLUTION forecast land based SOURCE POLLUTANTS marine POLLUTION
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Effect of the Bottom Topography on Tsunami Propagation in the East (Japan) Sea
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作者 CHOI Byung-Ho PELINOVSKY Efim +1 位作者 JEON Chul-Kyoo KIM Kyeong-Ok 《China Ocean Engineering》 SCIE EI 2008年第2期277-290,共14页
A study of tsunami events in the East (Japan) Sea using continuous Galerkin finite element model, aiming at reproducing tsunami waves generated by underwater earthquakes in 1983 and 1993 respectively has been perfor... A study of tsunami events in the East (Japan) Sea using continuous Galerkin finite element model, aiming at reproducing tsunami waves generated by underwater earthquakes in 1983 and 1993 respectively has been performed focusing on the geographic extent of a topographic feature in the East (Japan) Sea. Numerical models can be the proper tools to study the combined effects of realistic topography. Subsequently, using the FEM based two-dimensional model we have simulated the smoothed and flattened topographic effects by removal of Yamato Rise and seamounts for the cases of tthe 1983 Central region earthquake tsunami and the 1993 southwestern Hokkaido earthquake tsunami. The results have shown that there will be higher tsunamis along the eastern coasts of Korea in general except some areas, like Sokcho with removal of topographic highs, thus providing complicated bottom topography of the East (Japan) Sea as effective tsunami energy scattering. 展开更多
关键词 Yamato Rise 1983 central East japan sea tsunami 1993 southwestern Hokkaido tsunami
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Background Concentrations of Heavy Metals in Brown Algae from the Northwest Sea of Japan
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作者 Elena N. Chernova Svetlana I. Kozhenkova 《Journal of Geoscience and Environment Protection》 2020年第10期147-155,共9页
<div style="text-align:justify;"> Background concentrations of Fe, Mn, Cu, Zn, Pb, Cd, and Ni were calculated for brown algae <em>Costaria costata</em> from the northwest Sea of Japan. Also... <div style="text-align:justify;"> Background concentrations of Fe, Mn, Cu, Zn, Pb, Cd, and Ni were calculated for brown algae <em>Costaria costata</em> from the northwest Sea of Japan. Also the paper contains refined data on heavy metal concentrations in the widespread distributed brown algae, such as <em>Stephanocystis crassipes, Sargassum pallidum</em> and <em>S. miyabei</em>. As the upper threshold levels of metal background concentrations, the median values plus double medians of absolute deviations from the medians were used (Me + 2MAD). The lower threshold level of the background concentration equal to the physiological need for an element is the median of 15% minimum values in the sampling minus the double median of absolute deviations from the median (Me<sub>15</sub> - 2MAD<sub>15</sub>). The calculated ranges of the background concentrations of metals in algae were compared with concentrations of elements in mac-rophytes collected from habitats with background concentrations of metals in water. </div> 展开更多
关键词 Heavy Metals Background Concentrations of Metals Threshold Level ALGAE Costaria costata BIOMONITORING Northwest sea of japan
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Analysis of Economic Cooperation between China, USA, Japan, and ASEAN
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作者 Cheng Xiaoyong Huang Yangzi 《Contemporary International Relations》 2021年第6期110-133,共24页
Since China’s Belt and Road Initiative was introduced,the rapid development of China–ASEAN economic cooperation has aroused suspicion from the United States and Japan,nations that have been cooperating with Southeas... Since China’s Belt and Road Initiative was introduced,the rapid development of China–ASEAN economic cooperation has aroused suspicion from the United States and Japan,nations that have been cooperating with Southeast Asia for a long time.Through comparative analysis,this paper draws a conclusion that the cooperation between China and ASEAN has rapidly grown in trade volume,tourism,infrastructure construction,and other fields,but its advantages in some fields are not yet apparent,and there is no evidence of crowding out the United States and Japan overall.The United States and Japan have been adjusting policies toward ASEAN in a targeted manner,while ASEAN countries do not completely depend on China,establishing a balance in foreign economic cooperation between great powers.Therefore,the economic cooperation between China,the United States,Japan,and ASEAN is experiencing a dynamic adjustment process in long-term competition that is unlikely to lead to exclusive monopoly circumstances. 展开更多
关键词 Belt and Road Initiative China the United States japan AseaN economic cooperation
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On the Road for Friendship and Cooperation:Sidelights on the Visit of Liu Hongcai,Vice President of CAFIU to Russia,Japan and Cambodia
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作者 Jin Yan 《International Understanding》 2019年第3期10-12,共3页
At the invitation of Civic Chamber of Russian Federation,Junior Chamber International Japan and Civil Society Alliance Forum, Cambodia, Liu Hongcai,Deputy Chairman of Foreign Affairs Committee of Chinese People’s Pol... At the invitation of Civic Chamber of Russian Federation,Junior Chamber International Japan and Civil Society Alliance Forum, Cambodia, Liu Hongcai,Deputy Chairman of Foreign Affairs Committee of Chinese People’s Political Consultative Conference. 展开更多
关键词 On the Road FRIENDSHIP and cooperation Sidelights LIU Hongcai Vice PRESIDENT Russia japan and Cambodia
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MINERALOGY OF COASTAL DEPOSITS OF NORTH-WESTERN SEA OF JAPAN 被引量:1
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作者 N.G.Razjigaeva L.A.Ganzey 《海洋地质与第四纪地质》 CAS CSCD 北大核心 1991年第4期109-121,共13页
Distribution of heavy, light and clay minerals in Late Pleistocene—Holocene deposits from different coastal environments (beaches, lagoons, dunes, relict lakes, ria bays and inlets, open inlets) was analysed. It was ... Distribution of heavy, light and clay minerals in Late Pleistocene—Holocene deposits from different coastal environments (beaches, lagoons, dunes, relict lakes, ria bays and inlets, open inlets) was analysed. It was established that mineralogical composition of coastal deposits was a result of provenance and its hypergenous changes, transformation of material within transit zone, and accumulative conditions of inshore zone. Contents of stable minerals increase in deposits of the inlets confined to mouths of the small streams and in horizons of the sections, formed during regressive phases. Unstable minerals amount is higher in deposits of inlets, confined to mouths of the large river. The clay mineral fraction of shelf sediments consists mostly of illite. Authigenous pyrites dominate in deposits of ria bays, lagoons and relict lakes, formed during transgressive phases. Volcanic glass, found in deposits, is product of Holocene eruptions of Baegdusan (Baitushen) Volcano. 展开更多
关键词 COASTAL SEDIMENTS sea of japan heavy light AUTHIGENIC and clay MINERALS VOLCANIC glass
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Teleconnection between Sea Ice in the Barents Sea in June and the Silk Road,Pacific–Japan and East Asian Rainfall Patterns in August 被引量:12
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作者 Shengping HE Yongqi GAO +2 位作者 Tore FUREVIK Huijun WANG Fei LI 《Advances in Atmospheric Sciences》 SCIE CAS CSCD 2018年第1期52-64,共13页
In contrast to previous studies that have tended to focus on the influence of the total Arctic sea-ice cover on the East Asian summer tripole rainfall pattern, the present study identifies the Barents Sea as the key r... In contrast to previous studies that have tended to focus on the influence of the total Arctic sea-ice cover on the East Asian summer tripole rainfall pattern, the present study identifies the Barents Sea as the key region where the June sea-ice variability exerts the most significant impacts on the East Asian August tripole rainfall pattern, and explores the teleconnection mechanisms involved. The results reveal that a reduction in June sea ice excites anomalous upward air motion due to strong near-surface thermal forcing, which further triggers a meridional overturning wave-like pattern extending to midlatitudes.Anomalous downward motion therefore forms over the Caspian Sea, which in turn induces zonally oriented overturning circulation along the subtropical jet stream, exhibiting the east–west Rossby wave train known as the Silk Road pattern. It is suggested that the Bonin high, a subtropical anticyclone predominant near South Korea, shows a significant anomaly due to the eastward extension of the Silk Road pattern to East Asia. As a possible descending branch of the Hadley cell, the Bonin high anomaly ultimately triggers a meridional overturning, establishing the Pacific–Japan pattern. This in turn induces an anomalous anticyclone and cyclone pair over East Asia, and a tripole vertical convection anomaly meridionally oriented over East Asia. Consequently, a tripole rainfall anomaly pattern is observed over East Asia. Results from numerical experiments using version 5 of the Community Atmosphere Model support the interpretation of this chain of events. 展开更多
关键词 sea-ice reduction tripole rainfall Silk Road pattern Pacific–japan pattern TELECONNECTION
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THE ROLE OF PORTCITIES OF THE WESTERN YELLOW SEA IN THE FUTURE DEVELOPMENT OF RELEVANT REGIONS
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作者 Li Wenyan(Institute of Geography, CAS, Beijing 100101People’s Republic of China) 《Journal of Geographical Sciences》 SCIE CSCD 1996年第3期66-75,共10页
Portcities of the westem Yellow Sea in recent years have made a rapid growth in terms of annual throughput of major ports and GDP of cities concemed.Owing to the great demands of the Yellow River Basin for convenient ... Portcities of the westem Yellow Sea in recent years have made a rapid growth in terms of annual throughput of major ports and GDP of cities concemed.Owing to the great demands of the Yellow River Basin for convenient gateway to the outside world, urgent need for further co-operation among Northeast Asian countries and opportunities brought by the formation of a new Euro-Asia Continental Bridge, it is predicted that an urban belt including five major municipalities could be formed in the next century This paper made an overall analysis on geographical backgrounds and influencing factors. 展开更多
关键词 portcities Euro-Asia Continental Bridge economic cooperation westem Yellow sea Shandong Seoul
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