This paper mainly introduces the method about the system of different global positioning and depth measuring that is applied to the work of settling block to sweep bed in inland river channel, and this method is analyzed and compared with the traditional sweep bed practice. 本文主要介绍了实时差分动态定位数字化测深系统在内河航道清障扫床工作中的原理和方法,与传统的清障扫床方法进行了对比分析。
With the broadening of application domain of Geographic Information System ( GIS ) and the rapid development of spatial information techniques and application requirement, the GIS is demanded to develop from local application to global application in depth. 随着地理信息系统应用领域的不断深入、技术手段和应用需求的不断发展,要求地理信息系统从局部应用向全球化、纵深化发展。
Specifically, a global shape representation " Depth Weighted Normal Map " and a local curvature description " Shape Index Histogram " are proposed and applied to 3D model retrieval. 前者包括物体的全局形状描述深度加权法向映射以及局部曲率描述形状索引直方图;
A global two-dimensional ( latitude × depth ) model of the ocean carbon cycle, which is based on a dynamic, general circulation model of the world ocean created by Institute of Atmospheric Physics, Chinese Academy of Sciences, has been developed. 利用一个全球海洋动力学环流模式所模拟的海洋环流场,建立了一个全面的二维海洋碳循环模式。
The Effect of Global Radiation Budget on Seasonal Frozen Depth in the Tibetan Plateau 青藏高原总辐射变化对高原季节冻土冻结深度的影响