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first water impoundment
相关语句
  首次蓄水
     GRAVITY CHANGE AND ITS MECHANISM AFTER THE FIRST WATER IMPOUNDMENT IN THREE GORGES PROJECT
     三峡水库首次蓄水引起的重力变化及其机制的初步研究
短句来源
     In this paper, we analyzed dynamic variations of gravity field in the reservoir head area of the Three Gorges by the upward analytical continuation from 1998 to the end of 2003 (after the first water impoundment), and analyzed the essential characteristic of the variations of gravity field during the first impoundment.
     利用向上解析延拓方法分析了 1988~ 2 0 0 3年底 (首次蓄水后 )长江三峡库首区重力场的动态变化 ,并分析了首次蓄水过程中重力变化的基本特征。
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  first water impoundment
Gravity change and its mechanism after the first water impoundment in Three Gorges Project
      


In this paper, we analyzed dynamic variations of gravity field in the reservoir head area of the Three Gorges by the upward analytical continuation from 1998 to the end of 2003 (after the first water impoundment), and analyzed the essential characteristic of the variations of gravity field during the first impoundment. The following main conclusions are drawn: There are some background variations of gravity field and conditions of density anomaly in the reservoir; The method of the upward analytical...

In this paper, we analyzed dynamic variations of gravity field in the reservoir head area of the Three Gorges by the upward analytical continuation from 1998 to the end of 2003 (after the first water impoundment), and analyzed the essential characteristic of the variations of gravity field during the first impoundment. The following main conclusions are drawn: There are some background variations of gravity field and conditions of density anomaly in the reservoir; The method of the upward analytical continuation is good to keep the each characteristic of the gravity variations with a certain wave number domain distinct from the other one with different wave number among them the information with larger wave number indicates the effect of anomalous mass in depth or of large scale; The gravity changes during the first impoundment indicated that the effect of the water load is very strong, and the effect of infiltration is evident and lag, where the infiltration in the north region to the Yangtz River is stronger than that in the south region.

利用向上解析延拓方法分析了 1988~ 2 0 0 3年底 (首次蓄水后 )长江三峡库首区重力场的动态变化 ,并分析了首次蓄水过程中重力变化的基本特征。主要结论有 :库区存在一定的重力变化背景和地壳密度变异条件 ;向上解析延拓方法能较好地分离不同波数域重力变化特征 ,其中长波数信息反映较深处或较大尺度异常密度体效应 ;首次蓄水过程中的重力变化显示强烈的库水荷载效应和明显滞后的库水渗透效应 ,其中江北地区水的渗透明显强于江南地区

In this paper, we calculated the gravity effect of water-impoundment in the front area of the Three Gorges reservoir on several different water levels with a high precise numerical simulation and compared the gravity anomaly obtained by numerical simulation with that by measured in a local gravity monitoring net during the first water-impoundment in the Three Gorges.We concluded that the gravity effect during the water-impoundment was obvious and related to...

In this paper, we calculated the gravity effect of water-impoundment in the front area of the Three Gorges reservoir on several different water levels with a high precise numerical simulation and compared the gravity anomaly obtained by numerical simulation with that by measured in a local gravity monitoring net during the first water-impoundment in the Three Gorges.We concluded that the gravity effect during the water-impoundment was obvious and related to several factors,direct gravity effect of the water-impoundment plays a main role.

运用精密数值模拟算法,计算了三峡水库库首区不同蓄水高度的重力效应;对比分析了首次蓄水前后局 部重力监测网观测到的重力异常与模拟计算结果。得出结论:三峡水库蓄水引起的重力效应非常明显,蓄水过程 中的重力异常是多种效应的综合反映,其中蓄水本身的直接重力效应是主要的重力效应。

 
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