hydrographic data meaning in Chinese
水文资料
Examples
- Based on the spectrum of mean sea level ( msl ) and the relation model between two tidal stations , the mathematical model for hydrographic datum transfer are studied
基于平均海面的频谱结构和两验潮站潮位之间的关系模型，对基准面传递的方法原理进行了理论研究。 - Because the channel bed was adjusted by scouring and silting in long - term , the required period to reach basically equilibrium was predicted based on the typical and assemble hydrographic data in long series after the building of lijia flume dam
应用李家峡建坝后典型水文年长系列的组合资料，预报了河床经长期冲淤调整后达到基本平衡需要的时间。 - With the meteorological and hydrographic data in songhuajiang and nenjiang valley from 1951 to 1995 , using correlation analysis and empirical orthogonal analysis , the rule of the flood and relation between flood and precipitation distribution in this region are discussed . the results show that periodic change of water level is obvious in this region . now water level is in the serious stage from 1980 ' s . there are great relation between the water level of flood period and the precipitation . the unusual precipitation of nenjiang valley has greater impact than that of second songhuajiang valley . at the summer in 1998 , songhuajiang and nenjiang valley encountered the ghastly flood and the reason for that is the anomalous precipitation great exceeding the historic maximum
利用松花江,嫩江流域1951 1995年期间的气象和水文资料,采用相关分析,经验正交分析等方法,讨论了该流域洪涝发生的规律及其与流域内降水分布的关系.文章指出,江流域的水位变化有明显的阶段性,且具有全流域一致的特性,目前正处在80年代以来洪涝较严重的阶段;嫩江流域降水异常偏多对松花江洪涝的影响比第二松花江的作用要大; 1998年夏季,松花江,嫩江流域出现超历史纪录特大洪水的关键原因是嫩江流域6 8月的降水距平百分率远远超过了历史上的的最大值 - Applying the information extracted from numerous hydrographic data of field trials collected by h / hcs - 017 , the first set of multi - beam swath bathymeter developed in china , a series of mosaic techniques have been carefully studied in this thesis , including digital terrain model building , statistical error analyzing , hydrographic data mosaicking as well as tides correction and projection of the earth coordinates . finally , standard digital sea - charts and three dimensional seafloor images are successfully developed that are consistent with hydrographic surveying principles
本文利用我国第一台h hcs ? 017型条带测深仪的测量数据进行拼图技术的研究，主要研究的内容有：利用分带原理对深度数据进行潮汐修正，得到瞬时海面的深度数据；对测深数据进行误差分析处理，去除野值；将多波束数据进行坐标变换及投影转换后构建数字地理模型，进而根据海道测量规范绘制标准海图。