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大连市城乡建设委员会 《中国勘察设计》2004,(12):87-89
建筑业一直是大连市的支柱产业之一,近5年来,建筑业产值每年平均以22%的速度发展,2003年完成的建筑业产值占到全市生产总值的15.2%。为进一步促进我市建筑业发展,努力实现我市向建筑业大市、强市跨越,我市建设主管部门多方开拓,积极推动建筑业的改革与发展,主要工作有以下几个方面: 相似文献
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正8月24日,由省国土资源厅、海西州政府共同主办召开"矿产资源综合利用示范基地先进技术推广应用和绿色矿山建设现场会"。海西州政府、国土资源部规划司、省国土资源厅及省各级国土部门负责同志及51家企事业单位负责人120余人参加现场会。会议围绕充分认识加强矿产资源节约与综合利用、绿色矿山建设的重要性和必要性进行了分析探讨。坚持矿产资源节约与综合利用、推动绿色矿山建设是适应国家经济发展新要求、新理念 相似文献
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The origin of the Ryukyu Current(RC) and the formation of its subsurface velocity core were investigated using a 23-year(1993–2015) global Hybrid Coordinate Ocean Model(HYCOM) dataset. The volume transport of the RC comes from the Kuroshio eastward branch(KEB) east of Taiwan and part of the North Pacific Subtropical Gyre(pNPSG). From the surface to 2 000 m depth, the KEB(p-NPSG) transport contributes 41.5%(58.5%) to the mean total RC transport. The KEB originally forms the subsurface velocity core of the RC east of Taiwan due to blockage of the subsurface Kuroshio by the Ilan Ridge(sill depth: 700 m). Above 700 m, the Kuroshio can enter the East China Sea(ECS) over the Ilan Ridge, meanwhile, the blocked Kuroshio below 700 m turns to the right and flows along the Ryukyu Islands. With the RC flowing northeastward, the p-NPSG contribution strengthens the subsurface maximum structure of the RC owing to the blockage of the Ryukyu Ridge. In the surface layer, the pNPSG cannot form a stable northeastward current due to frequent disturbance by mesoscale eddies and water exchange through the gaps(with net volume transport into ECS) between the Ryukyu Islands. 相似文献
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深海经济问题国际研究动态及启示 总被引:1,自引:0,他引:1
深海经济问题已经成为国际学术界关于海洋经济问题研究的新领域.文章从深海资源与环境、深海渔业、深海工业和深海运输等方面对深海经济国际文献进行了初步梳理,以期为我国深海经济问题的深入研究提供借鉴. 相似文献
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There exists a tongueshaped swelldominance pool known as Swell Pool (SP) in the Eastern Pacific region. The monthlymean wave transports (WT) for each month of 2000 is computed using the wave products of ECMWF reanalysis data. By comparing the 2000 monthlymean WT and monthlymean wind field from QUICKSCAT, large differences are found between the wave transport direction and the wind direction over the Eastern Pacific. This may serve as an evidence for the existence of the SP in this region. The work done in this study indicates that the sources of swell in the Tropical Eastern Pacific (TEP) are in the westerly regions of the Southern and Northern Pacific. 相似文献
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A dual channel difference (DCD) method is applied to detect nighttime sea fog/stratus over the Huanghai Sea using the infrared (IR) data of shortwave (3.5–4.0 μm) and longwave (10.3–11.3 μm) channels from the Multi-functional Transport Satellite (MTSAT)-1R, i.e., shortwave minus longwave brightness temperature difference (SLTD). Twenty-four sea fog events over the Huanghai Sea during March to July of 2006 and 2007 are chosen to determine a suitable value of SLTD for nighttime sea fog/stratus detection, and ... 相似文献
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The results of the new concept of coastal sea circulation are demonstrated by numerical simulations for the first time. The numerical experiments in three types of rectangular model seas illustrate the dependence of circulation on tidal phases due to the convectively nonlinear effect which is estimated by a newly defined drift dispersion in-dex. Then, the present theory is applied in the Bohai Sea of China. At the Bohai Straits and the Huanghe River mouth area the circulation direction even reverses owing to different initial tidal phases which shows that the the-ory copes with nonlinearity well. The calculated M2 tide-induced residual circulation shows that a clockwise gyre exists in the center of an anticlockwise gyre in the central Bohai Sea due to the topographic features. In the Bo-hai Gulf the tide induced circulation shows a 3D structure with outflow at the surface and the inflow at the bottom which can partly explains the spread of the Huanghe River fresh water out of the Bohai Gulf and the inflow of the sediment from the Huanghe River. 相似文献