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   geomorphic evolution 在 海洋学 分类中 的翻译结果: 查询用时:0.274秒
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  地貌演化
    HYDRODYNAMIC PROCESS AND GEOMORPHIC EVOLUTION OF COASTAL ZONE OF GUANGXI
    广西海岸带水动力过程与海岸地貌演化
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  地貌演化
    HYDRODYNAMIC PROCESS AND GEOMORPHIC EVOLUTION OF COASTAL ZONE OF GUANGXI
    广西海岸带水动力过程与海岸地貌演化
短句来源
  地貌演变
    Coastal geomorphic evolution at the Denglou CapeLeizhou Peninsula of China
    雷州半岛灯楼角海岸地貌演变
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    Sedimentary Dynamics and Geomorphic Evolution of the Laizhou Shoal
    山东莱州浅滩的沉积动态与地貌演变
短句来源
  地貌演变
    Coastal geomorphic evolution at the Denglou CapeLeizhou Peninsula of China
    雷州半岛灯楼角海岸地貌演变
短句来源
    Sedimentary Dynamics and Geomorphic Evolution of the Laizhou Shoal
    山东莱州浅滩的沉积动态与地貌演变
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  geomorphic evolution
In order to study the geomorphic evolution and lifetimes of lunar craters, data were collected from (i) 32mare andterra provinces of the nearside of the Moon using the L.P.L.
      
A study on two closed salt lake basins, Tal Chapar and Parihara in the eastern margin of the Thar Desert, Rajasthan, was carried out to unravel late Quaternary geomorphic evolution of these saline lakes.
      
Pliocene to Holocene geomorphic evolution and paleogeography of the El'gygytgyn Lake region, NE Russia
      
Role of inlets in geomorphic evolution of the south shore barriers of Long Island, New York, USA
      
Erosional processes, topographic length-scales and geomorphic evolution in arid climatic environments: the 'Lluta collapse', nor
      
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Shapa tidal inlet is a comparatively stable inlet of estuarine type with broad waters. The tidal channel, flood-tidal delta, channel-margin bar, mouth bar, marginal flood channel, and recurved spit are the main geomorphic elements in the entrance area of the inlet under the effects of waves and tidal currents(tided-dominated). In recent years, activities by mankind have caused changes in hydrodynamical conditions and sediment transport, resulting into a series of geomorphic evolution processes such as...

Shapa tidal inlet is a comparatively stable inlet of estuarine type with broad waters. The tidal channel, flood-tidal delta, channel-margin bar, mouth bar, marginal flood channel, and recurved spit are the main geomorphic elements in the entrance area of the inlet under the effects of waves and tidal currents(tided-dominated). In recent years, activities by mankind have caused changes in hydrodynamical conditions and sediment transport, resulting into a series of geomorphic evolution processes such as the shallowing of the east channel,deepening of the west channel, direction change of the south channel, the eastward and landward movement of the mouth bar, and the lowering of the spit in the south of the fishery harbour as well as its movement towards the harbour. These processes must be fully considered in harbour planning and development.

沙扒及其上游儒洞湾是一个有一定规模,比较稳定的河口湾型潮汐汊道,在波浪与潮流共同作用并以潮流为主的动力条件下,口门地区发育有潮流深槽、涨槽三角洲、水道边缘坝、拦门沙浅滩、边缘涨潮水道及内弯沙嘴等地貌类型。近年来,各种人类活动引起水文泥沙条件变化,导致东槽萎缩、西槽复苏、南槽转向、拦门沙东移并靠岸、港南沙嘴变低内移等现代演变过程。在港口现划与整治时必须对此充分考虑。

The south coast of the Qiongzhou Strait, especially its middle part,alternating between promontories and bays, is subjected to erosion and deposit underthe actions of coastal dynamics such as waves and tidal currents. The coastal dynamicfeatures, sediment transport and beach evolution along the south strait coast areanalyzed in the view of coastal dynamic geomorphology. By the 3-D tidal currentnumerical model, the sediment transport caused by tidal current is predicted tO mainlyoccur in the offshore, which has...

The south coast of the Qiongzhou Strait, especially its middle part,alternating between promontories and bays, is subjected to erosion and deposit underthe actions of coastal dynamics such as waves and tidal currents. The coastal dynamicfeatures, sediment transport and beach evolution along the south strait coast areanalyzed in the view of coastal dynamic geomorphology. By the 3-D tidal currentnumerical model, the sediment transport caused by tidal current is predicted tO mainlyoccur in the offshore, which has no obvious effect on nearshore landform, and thesediment transport trend in the area is from west to east. On the base of wavedynamic analysis, longshore sediment transport is computed so as to further understandthe relationship between sand beach dynamics and geomorphic evolution. The resultsshow that the prevailing NNE wind wave is the main cause of nearshore sedimentmovement and geomorphic evolution. The sand bare and spits also indicate thelongshore sediment transport from east to west.

岬湾相间的琼州海峡南岸在海岸动力条件作用下,岸滩发生侵蚀或堆积,特别是南岸中部的南渡江三角洲沿岸岸滩演变剧烈。该文从海岸动力地貌的角度,对琼州海峡南岸的海岸动力特征、泥沙运动以及岸滩演变进行分析。根据海峡南部三维潮流场数值模拟结果,结合经验公式初步分析潮流引起的泥沙运移速率和方向,得到岸外水域总的泥沙运移趋势为从西向东。根据波浪动力计算分析沿岸泥沙运移,探讨沙质岸滩的动态与地貌演变之间的关系,得出海峡南岸海岸地貌演变与盛行的NE和NNE向风浪有密切关系,岸滩的演变过程主要受制于这两个方向的风浪及其引起的泥沙沿岸运移。

Based on field work, dating,mapping, historical literature and predecessors' work, this paper has discussed the influence of the middle and later Holocene relative sealevel change on the coastal geomorphic evolution along the northeastern Shandong peninsula which stretches from Longkou to Shidao. Along the northeastern Shandong Peninsula, many large sized coastal deposition geomorphic bodies were developed, among which the Qimudao tombolo in Longkou city, Zhifudao tombolo in Yantai city and Shidao...

Based on field work, dating,mapping, historical literature and predecessors' work, this paper has discussed the influence of the middle and later Holocene relative sealevel change on the coastal geomorphic evolution along the northeastern Shandong peninsula which stretches from Longkou to Shidao. Along the northeastern Shandong Peninsula, many large sized coastal deposition geomorphic bodies were developed, among which the Qimudao tombolo in Longkou city, Zhifudao tombolo in Yantai city and Shidao bay mouth barrier in Rongcheng city are the biggest in size and most typical in form. Among the three barriers above, which were formed in differeent physical geographic and geologic settings, there is not only remarkable difference in genetic type, barrier platform and sediment resource, but also difference in landfrom and deposition features. According to the analysis on the difference above, it is concluded that the coastal deposition geomorphic evolution has been deeply influenced by the middle and later Holocene relative sealevel change. The influencing mechanism is that the relative sealevel change results in the adjusting of the tranverse shore profile and longitudinal river-bed profile, then influences the intensity of beach drift and barrier evolution. Since the middle Holocene, there are five relativel change phases which include a static phase (6000~4000aBP), two rising phases (4000~2300aBP,1500~600aBP) and two falling phases(2300~1500aBP,600aBP~present). For the two rising phases, the average rising rates are 2.35mm/yr and 2.22mm/yr,which approach the low limit of the estimated relative sealevel rising rate during 1990~2100 A.D.. Based on the results of this paper, the future global sealevel rise will influence the the coastal geomorphic evolution along the rock mountain coast such as the northeastern Shandong peninsula.

山东半岛东北岸发育有许多大型海积地貌体,其中尤以龙口屺岛连岛沙坝、烟台芝罘岛连岛沙坝和荣成石岛湾口沙坝规模最大,形态最典型。这三个形成于不同自然地理条件下的沙坝之间,既有成因、沉积结构、泥沙来源等方面的显著差异性,又有地貌与沉积方面的的可比性。对这些差异性、可比性的深入分析表明,全新世中期以来短时间尺度、小幅度的相对海面变化,对海积地貌发育有着深刻的控制作用。这种控制作用包括海面升降引起的海岸横剖面调整和入海河流河床纵剖面调整,进而对沿岸纵向泥沙流强度和沙坝发育产生深刻影响。

 
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