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| Application of Ground Penetrating Radar to the Sedimentary Structure Detection of a Coastal Parabolic Dune in Zhangpu, Fujian, China |
| Deng Tao1,2, Li Zhizhong1,2,3, Jin Jianhui1,2,3, Jiang Feng1,2, Xia Jing1,2, Wang Xianli1,2 |
1. College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China;
2. Key Laboratory of Humid Subtropical Eco-geographical Process, Fujian Normal University, Fuzhou 350007, China;
3. Institute of Geography, Fujian Normal University, Fuzhou 350007, China |
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Abstract This article reports the application of ground penetrating radar (GPR) to the sedimentary structure detection of a coastal parabolic dune in Zhangpu County, Fujian Province, China. We draw these preliminary conclusions: (1) The physicochemical properties of the detected coastal dune, such as grain-size and water content, antenna frequency, and the processing steps of GPR images, such as digital filtering and gain adjustment, will all affect the result of the GPR detection. (2) The bedding showed by two sandpits near the detected profiles is primely in support of the sedimentary structure revealed by the GPR, so GPR is a kind of excellent method for the sedimentary structure detection of the coastal dune. (3) By interpreting the sedimentary structure sequence revealed by the GPR images and surveying the coastal environmental change of the study area in recent decades, we conclude that there are two stages of the development of the detected coastal parabolic dune: the exposure of the beach ridge from the sea level in the early stage and then the development of vegetation and parabolic dune.
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Received: 13 October 2014
Published: 20 July 2015
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2015, Vol. 35 
