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1. Bathymetric maps from 1958 to 2005 and hydrographic and sediment data are used to analyze the form and revolution of Ruifengsha Spit.

2. Bathymetric (or sea floor terrain) data is often collected from boats using sonar to take measurements of the sea floor, " she added.

3. Laser sounder bathymetric system is of great importance to be capable of charting coastal bathymetry rapidly and cheaply.

4. An airborne laser sounder bathymetric system is of great importance to chart coastal bathymetry rapidly and cheaply and to detect submarines.

5. Based on a large amount of bathymetric and side-scan data, the micro-geomorphic features and their recent change were discussed in the present paper.

6. The multi-beam swath bathymetric technique needs more improvement with the developing of modern science and technology. Miniaturization of the bathymeter is currently the main goal of this field.

7. In bathymetric survey, the record seabed image is distorted due to the angular beam width of an echo sounder.

8. Additionally, the combination of this bathymetric data plotting scheme with other calibrating meters or printers is also discussed.

9. The bathymetric variation consists of a slowly varying component and a fast, small amplitude varying component.

10. Acoustic velocity is an important bathymetric parameter for the multibeam sounding system.

11. In bathymetric survey, the recorded seabed is distorted due to the beam - width of the echo sounder.

12. Secondly, bathymetric algorithm theory based on amplitude and phase has been compared and analyzed.

13. They differ somewhat from bathymetric charts which are virtually topographic maps of the ocean floor.

14. Bathymetric (or sea floor terrain) data is often collected from boats using sonar to take measurements of the sea floor. The lines reflect the path of the boat as it gathers the data.

15. GPS-RTK bathymetric survey technique without tidal observation was successfully applied in Yangtze Estuary Channel Regulation Project for monitoring of river regime near leading jetty.

16. Hydrographic and bathymetric data have been applied to review the dynamic regime and morphological evolution in recent years in the sandbar area of the Modaomen estuary.

17. In some families species have been included from the upper slope in the event of overlapping bathymetric ranges.

18. The problems on how to describe submarine configuration by discrete bathymetric data and correlate bathymetric data and feature data are basic ones that need to be solved methodically in MGIS.

19. The errors in water depth data are easy to be generated in the marine surveys,(sentencedict.com) especially in the large scale bathymetric surveys for marine engineerings.

20. The statistical characteristics for specified sampling window units are extracted from the bathymetric data, and the cluster analysis method is then used to classify the sampling window units.

21. Automatic interpolation of charted depth annotated point, automatic selection of marine topography feature point and automatic build of bathymetric contour come true by using history data.

22. This paper introduces the application of RTK GPS in bathymetric survey without tide observation. It describes the elementary method that has been proved highly effective.

23. The use of a high-accuracy DGPS is the premise for getting the high-accuracy bathymetric data by multibeam echo sounding.

24. In this paper, the bottom sediment classification method by using high precision multibeam bathymetric data is discussed.