| 海岸横向沙脊表面风沙流结构的野外观测研究 |
| |
| 引用本文： | 董玉祥,P A Hesp,S L Namikas,马骏.海岸横向沙脊表面风沙流结构的野外观测研究[J].地理科学,2008,28(4). |
| |
| 作者姓名： | 董玉祥 P A Hesp S L Namikas 马骏 |
| |
| 作者单位： | 1. 中山大学地理科学与规划学院,广东,广州,510275
2. Department of Geogrphy and Anthropology,Louisiana State University,USA |
| |
| 摘 要： | 选择中国规模最大、形态最为典型的河北昌黎黄金海岸的横向沙脊,采用野外梯度风速仪和平口式积沙仪对其顶部的风沙流结构进行了观测.观测结果表明,海岸横向沙脊表面的风沙流结构特征基本表现为0～40 cm高程内气流搬运的沙尘物质浓度或质量随高度递减并符合指数分布,20～60 cm高程内符合幂函数分布,40～60 cm高程内输沙量与高度之间则为多项式函数关系.同时,海岸横向沙脊表面的风沙流结构受风速与总输沙量的影响较大,随风速增大或总输沙量的增加,风沙流下层输沙量相对减少、上层则相应增加.
|
| 关 键 词： | 海岸横向沙脊 风沙流结构 野外观测 |
Field Measurements of Structure of Wind-sand flow on Coastal Transverse Ridge in China |
| |
| DONG Yuxiang,P A Hesp,S L Namikas,NA Jun.Field Measurements of Structure of Wind-sand flow on Coastal Transverse Ridge in China[J].Scientia Geographica Sinica,2008,28(4). |
| |
| Authors: | DONG Yuxiang P A Hesp S L Namikas NA Jun |
| |
| Institution: | 1.School of Geography and Planning;Sun Yat-Sen University;Guangzhou;Guangdong 510275;2.Department of Geography and Anthropology;Louisiana State University;USA |
| |
| Abstract: | On the typical coastal transverse ridge at Changli Gold Coast in Hebei Province,which is one of the most typical coastal Aeolian distribution regions in China and famous for the tall and typical coastal transverse ridges.Here,he structure of wind-sand flow on the top of coastal transverse ridge was measured by use of field vertical anemometer and sand trap.The field measurement results show that basic characteristic of the structure of wind-sand flow on the top of coastal transverse ridge is the sand transp... |
| |
| Keywords: | coastal transverse ridge structure of wind-sand flow field measurement |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
