1) coastal barchan
海岸新月形沙丘
1.
At Changli Gold Coast,42 samples of particle size were col- lected on a coastal barchan,which was a typical coastal barchan chosen from all the barchans in this re- search region.
结果表明,昌黎黄金海岸新月形沙丘两翼、迎风坡脚、迎风坡、沙丘顶部、背风坡、背风坡脚的粒度总体上是中砂、分选好、偏度近对称和中等峰态,只有平均粒径在新月形沙丘表面的不同部位存在一定的差异,自迎风坡脚到沙丘顶部粒径变粗,背风坡粒径相对变细,到背风坡脚粒径又变粗,整个沙丘表面粒径顶部最粗、背风坡最细,其分布可以归入沙丘顶部砂物质最粗的分布模式。
2) barchan dune
新月形沙丘
1.
Field measurement of surface wind velocity and sediment transport rates was made on barchan dune in Wulanbuhe desert to understand.
对乌兰布和沙漠新月形沙丘表面风速的野外观测结果表明,沙丘迎风坡气流加速量主要和沙丘坡面形态、迎风坡前来流风速有关,迎风坡风速放大率介于1。
2.
Field observation and theoretical analysis of wind velocity on windward slope of a isolated barchan dune indicated that velocity profile is non logarithmic; shear velocity and sand transport increase from foot of slope to the top as a whole though change correspondently with increase or decrease of the slope gradient.
对孤立新月形沙丘迎风坡风速的野外实测和计算表明，沙丘迎风坡表面风速廓线呈非对数关系，近地面剪切风速和输沙强度由坡脚至丘顶总体呈递增趋势，但同时随断面坡度的增减而发生相应的变化；沿断面输沙率的变化导致蚀积强度的改变，表现为沙丘迎风坡坡度变缓的部位沉积大于侵蚀，其它部位侵蚀大于沉积，其中丘顶输沙率和侵蚀强度最大。
3) barchan
[bɑ:'kɑ:n]
新月形沙丘
1.
Retrograde Evolution of Barchan on Interdune Corridor of Complex Ridges in Central Taklimakan Desert;
塔克拉玛干沙漠腹地复合沙垄间地新月形沙丘的逆向演变
2.
Velocity speeding\|up on the windward flanks of barchans is a dynamic factor which control dune formation and dune shape.
迎风坡气流加速是决定新月形沙丘发育和形态的动力因子 ,研究这一加速过程的定量关系有利于认识沙丘的发育、沙丘的形态、沙丘的运动等。
4) crescent dune
[地]新月形沙丘
5) barkhan chain
新月形沙丘链
6) coastal dune
海岸沙丘
1.
A study on coastal dune blowouts in east coast of Changle;
福建长乐东部海岸沙丘风蚀坑研究
2.
Studying on the formation and development origin of coastal dunes along the coastal area in the eastern part of Changle County,it is considered that the wind conditions,sand source and landform are the essential points of shaping up the coastal dunes in the surveyed area.
通过对长乐东部沿海海岸沙丘的形成及其发育成因进行分析,认为风况、沙源和地形空间是形成该地区海岸沙丘的基本条件。
补充资料：《新月》
见新月社。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条